4x4Wire TrailTalk

Hi it has been a while. Now Head gasket issue 90 LWB

Posted By: JAVYPRO

Hi it has been a while. Now Head gasket issue 90 LWB - 03/24/15 12:22 AM

Hey guys, it has been a while.

Saturday while driving home and at about two miles away al of a sudden POOFFF A big white cloud of smoke behind me that smelled like sweet candy and a misfire.

It has to be a head gasket, it did not overheated or nothing and it made it home fine.

Well, I only trust my vehicles to a mechanic friend of mine for this kind of "big" jobs but this time he is nowhere to be found. Given that I had to pull my 88 SWB from semi-retirement while I work on the turbo engine, I will have to tackle this job myself.

I have order the gaskets and it is recommended to replace the head bolts, right? At the same I will be replacing the valve seals as it is showing the symptoms of that too.

Any other recommendations?

Thanks,
Javy
Posted By: Jay Ayala

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 03/24/15 01:06 AM

Hello Javier,
nice to see you posting again. Well, how recently has the timing belt been done? If you have done that and recently along with the water pump, I would just keep that stuff. But if it has been a while, I would think about doing that along with the head gaskets.

Javy, if you want, I will mail you my Leslie Valve Keeper Removal tool if you want this to be done easily. Once you finish you can ship it back.

[Linked Image]
Posted By: JAVYPRO

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 03/24/15 11:39 PM

Hi Jay,
Indeed the water pump, timing belt, tensioners and all other gaskets and seals are about 6 months old.
Borrowing your tool would be awesome, I will take extreme care of it.
My main worry is to keep the timing belt aligned and that nothing gets out of whack, the rest should be straight forward. I will take the precaution to mark everything. Did you set yours to TDC before disassembly?

Javy
Posted By: Jay Ayala

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 03/25/15 04:46 AM

Hey Javier,
Send me your address in a PM and I'll ship it your way.

No I did not set it to TDC before disassembly although I wish I would have thought about that, it may have made my job easier. You may consider a new upper intake gasket as it is a flattened metal gasket with ridges that get crushed down when you torque the upper intake.

The engine will be fine as the 3.0L SOHC is not an interference engine so I wouldn't worry about keeping the timing belt aligned. Of course it's critical during reassembly, but I wouldn't sweat it during disassembly.

I'll wait to hear back from you about the tool bro.
Posted By: JAVYPRO

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 03/28/15 01:47 AM

Jay,
Pardon the late reply. I ordered the full set and it comes with all the needed gaskets.

I sent you a PM with my address.

Thanks again.

Javy
Posted By: sasnydley

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 03/29/15 07:55 PM

I am in the process of doing head gaskets also. I tore it down yesterday. I only need to unbolt and remove the heads now. I am planning on doing everything including the bolt replacement. When I did this over 100000 miles ago I did not replace head bolts, but since this is the 2nd time I think it is due.
Posted By: sparkem

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 03/30/15 12:00 AM

I have done 4 head gasket jobs on 3.0 monteros. I reused the bolts on 3 of 4 jobs. The only one I bought new bolts was the 93 where the previous mechanic did not put the thick washers back under the bolts.

Also don't worry much about setting the timing in the correct spot on disassembly. The cams will spin under spring pressure at some point. Just watch your fingers when do.

An impact is good for taking the cam bolts out. You should do the front end seals while you are in there. Also check the size of the seals before you take out the old ones. Some aftermarket ones do not fit.
Posted By: JAVYPRO

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 03/30/15 02:15 AM

LOL, and I thought I was the only one, ah?

This engine has 276k miles and the head gaskets were done by the Mitsubishi dealer when it was 135k miles, I know so because it was my wife's uncle vehicle.

So far no surprises, everything going smoothly as pie. Just found one of the exhaust manifold's bolts on drivers side, one on the front, was broken and the dealer did not bother to fix it, had to be them as they have been the only ones that have been so far. Also maybe one or two missing not important bolts.

I ordered a full gadget set from www.rockauto.com together with a new set of head bolts and I am glad I did because I found that on the driver's side from front to back the second pair of bolts had the, how can I explain it easily, the shape of the hex shape messed up. I notice that if they used the hex cube (10mm by the way) like the one I got from O'Reilly, the hex part is an out 1.5"long and the part that connects to the ratchet (I'm tired and can't think straight) hits the rocker arm shaft's tower. I had to use a 3/8 Allen key.

I am taking pics as I go because men there are bolts every where. I will post some pics tomorrow.

Javy
Posted By: Jay Ayala

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 03/30/15 04:10 AM

New head bolts are not necessary. However it has been my experience that reusing head bolts has disastrous outcomes. I'm lucky that way I guess. LOL.

I see you got new bolts. Good for you. I'm always strongly recommending to people to get a new set as opposed to reusing them.
Posted By: JAVYPRO

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 03/31/15 02:36 AM

Alright, let me try to post some pics...

https://onedrive.live.com/redir?resid=C2...thint=folder%2c

I tried, I cannot tell if I am able to get the link from onedrive in W8.1

Will try again later.

Sorry,
Javy

Attached picture 1297877-WP_002859.jpg
Posted By: Jay Ayala

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 03/31/15 05:38 PM

Javy

Hey I meant to send you a message yesterday but I got so busy in finalizing the work I needed to do to the Raider last night that I was out in the garage until about 10:00pm last night. I sent you the tool and it is Guaranteed Delivery by Thursday. You should be getting it before the weekend kicks off. I lost the receipt with the tracking number or I would provide it. If I find it in the next hour or so I'll send it to you.
Posted By: JAVYPRO

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 04/01/15 01:30 AM

No problem man.

Question: I Noticed that the coolant passages in the block and heads are sort of oval and the gasket is round, covering most of the passage. Also noticed that because of this the head gasket kinda deteriorates in that same section. Is there a gasket that matches the passages on the block and heads?

https://onedrive.live.com/redir?resid=c2...int=photo%2cgif

Javy
Posted By: Jay Ayala

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 04/01/15 06:05 AM

Javy, I know what you mean. I wondered about that as well. I went with the FelPro set that was recommended on their web site. I haven't had any problems with it over the past 12 months. I don't know if there is a set of gaskets that fit better or not. I wouldn't be too concerned about it. How long have you ran that head on the engine with that gasket?
Posted By: mrray

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 04/02/15 05:46 PM

Javi, it looks from the pics that there are perforations in the proper oval shapes on that gasket. Are you sure you're not supposed to punch them out?
Posted By: Jay Ayala

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 04/02/15 08:47 PM

Javi,
I assume the till arrived today?
Posted By: JAVYPRO

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 04/04/15 02:12 PM

Quote
Javi, it looks from the pics that there are perforations in the proper oval shapes on that gasket. Are you sure you're not supposed to punch them out?


If you notice I circled some, the shape of the gasket and the head don't match. I thought the same thing, if I should punch hem to he head's shape or is it ok to leave them like that.

Jay, I got the tool, I am studying it to see how it works. Today is a beautiful Saturday in the good ol'south so I will be working on the truck soon.

I am thinking on taking a bit of time longer to paint and polish a couple of things under the hood. This is crazy but thinking on painting the intake manifold, red <img src="/forums/images/graemlins/scared.gif" alt="" /> crazy??? Ha ha ha
I am also going to redo the plastic piping that covers the fuel injectors wires it is brittle and disintegrating.

Oh, one question: I found the timing belt way too easy to slide out, is it supposed to have a bit more of tension on it? Can o adjust it? Should I?

Will have my pc in the garage together with some good Latin tunes and the little fridge with good beer so I will be posting the good as I go.
Javy
Posted By: Jay Ayala

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 04/04/15 06:30 PM

Quote
If you notice I circled some, the shape of the gasket and the head don't match. I thought the same thing, if I should punch hem to he head's shape or is it ok to leave them like that.
Punch them out.

Quote
Jay, I got the tool, I am studying it to see how it works. Today is a beautiful Saturday in the good ol'south so I will be working on the truck soon.
Good now get to work! Use this as a guide. 1989 V6 - Valve Seal Replacement - Cylinder Heads Removed

Quote
I am thinking on taking a bit of time longer to paint and polish a couple of things under the hood. This is crazy but thinking on painting the intake manifold, red <img src="/forums/images/graemlins/scared.gif" alt="" /> crazy??? Ha ha ha
No, you are not crazy. I painted mine yellow remember?

[Linked Image]

Quote
I am also going to redo the plastic piping that covers the fuel injectors wires it is brittle and disintegrating.
You may want to consider self wrapping conduit. It works well at high operating temperatures. You can find it cheap by the foot at Fry's and places that sell computer wiring like PCH Cables in Oregon. They sell 1/2" for $1.08 per foot and ship anywhere for cheap. I'm sure you can find it locally.

[Linked Image]

Quote
Oh, one question: I found the timing belt way too easy to slide out, is it supposed to have a bit more of tension on it? Can o adjust it? Should I?
Yes, you should adjust it. Make sure the little spring that connects from the post on the water pump to the tensioner arm is there. Sometimes they break. It will pull the right tension on the tensioner pulley, then torque down the pulley. That is how you adjust the tension. Sometime I pull a little extra tension with a big screw driver on the back side of that pulley. Here is a link to Autozone's timing component kit. .

Quote
Will have my pc in the garage together with some good Latin tunes and the little fridge with good beer so I will be posting the good as I go.
Javy
Keep us updated.
Posted By: Jay Ayala

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 04/06/15 10:45 PM

Javy, what's the latest? Did you get all that stuff done over the weekend?
Posted By: JAVYPRO

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 04/19/15 03:27 PM

Jay,
Wow I have been busy. Couldn't work on it last weekend end but I'm working on it as we speak.

LOL, I had to remove a stud that was broken on the exhaust manifold and I broke a bolt of the rocker arms bolt, this one I have to find.

The other thing is, once I torque the heads I don't want to remove the valve covers again to do the warm torque, common that is a pain in the <img src="/forums/images/graemlins/butwiggle.gif" alt="" /> as it is to remove. Did you do that warm torque or did you torque them a bit more to compensate?

Also, I painted the intake oh you got to see how it looks but I won't post pictures until installed <img src="/forums/images/graemlins/smile.gif" alt="" />

Javy
Posted By: JAVYPRO

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 04/21/15 12:37 AM

Contacted a friend of mine who is the best engine builder I know back home and he advised to just do the cold torque and to add 5lbs.

Mounting this thing back but can only work on weekends as I do not have enough time during the week. I think I am taking Friday off so I can finish it.

Oh, during the disassembly process I found a broken sensor, the one on top and next to the thermostat housing, I believe is for the cooling fan, and it cost about $47 so I'll see if I can fix it just as I did with one of the sensors in the transfer case.

Javy
Posted By: Jay Ayala

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 04/21/15 05:15 PM

Hello Javy,

Yup yup, I also did cold torque as your friend suggested. I used new replacement bolts though. What about you? New bolts?or are you reusing the old bolts?
Posted By: JAVYPRO

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 04/24/15 02:09 AM

Oh I am going with new bolts. The only bolts that are driving me crazy are the rocker arm bolts, two have snapped like they are made out of butter or worst.

These only require 189 in/lbs so there is no reason for them to break unless they were over tighten. I am using metric bolts from ACE that are just as strong. I have removed the rocker arms from the driver side back 3 times, 3 TIMES because of another broken bolt. Now I have to carefully drill it out and will go for the second bolt on the rocker arms.

I will have to source them out to see if I can find them, hopefully before Saturday because I want to have it running this weekend PERIOD.

Maybe the local Fastenal might have the equivalent.

Javy
Posted By: JAVYPRO

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 04/29/15 10:45 PM

Well, Murphy's law stroke again. I was just an hour or so shy of finishing when tightening the bolts, top and bottom far back, on the passenger's side exhaust manifold when <img src="/forums/images/graemlins/zombie.gif" alt="" /> both broke. First the one on top and I was like hell I will leave it like that and then boom the bottom one.

I am not going to lie when I say I grabbed a piece of pipe and sat down because I was about to cause major damage. <img src="/forums/images/graemlins/evil.gif" alt="" />

Now I have no choice but pull the head again to drill and remove the bolts. I love my Mitsubishis but when you talk about crappy fasteners they are #UNO.

I have had a busy week and the next one will be about the same so it will not be until the following weekend that I will have 3 days to remove and hopefully have an uneventful installation.

Javy
Posted By: Jay Ayala

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 04/30/15 04:30 AM

Dang brother. That is the worst part about doing stuff like this. The unexpected issues that pop up and cause major delays. I hate that.
Posted By: JAVYPRO

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 04/30/15 02:29 PM

Should I keep and re-use the head gasket or replace it?

Javy
Posted By: sasnydley

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 05/07/15 10:34 PM

Mine is done! Only issue is twice after driving it for a while- stop and go off and on several times- It will just decide not to start- rolls and rolls and then will sputter to life. Runs perfectly fine after. Banged on fuel tank today - truck started after. Not sure if it was me banging or coincidence.
Posted By: Jay Ayala

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 05/08/15 08:30 AM

Quote
Should I keep and re-use the head gasket or replace it?

Javy


Javy,
I would consider the condition of the gasket. If it's still in good shape then reuse it. But if it's brittle and no longer springy, than get a new gasket set.
Posted By: JAVYPRO

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 05/09/15 12:22 PM

I changed the gasket and finished putting everything back together, Finally BUT, BUT...

It cranks but it will not start. I am not missing anything relevant, there are some details but they are nothing else but the two side brackets to the plenum that need to be moved and tweaked

Did you have this issue? I did not try much to try to start it.

Javy
Posted By: ryany

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 05/09/15 04:35 PM

Double check that your plug wires are routed correctly, on both the cap and the plugs. IIRC the 3.0 has something funky about the distributor cap towers not being in the expected order.

Check the basics: Do you have spark? Are you getting fuel pressure? Did you have issues getting the cam timing properly set?

Diagnosing a no-start like this is always frustrating because it's usually something simple that you'd swear you got right. smile
Posted By: danz91crx

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 05/09/15 04:54 PM

Yupp the cap is funky, the number 1 wire goes on across from where the rotor would make it spark.

[Linked Image]

I would never reuse a head gasket after a head was torqued down on it.
Posted By: JAVYPRO

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 05/11/15 12:05 AM

Something funky is going on.
I mean, the cap has only one position and my #1 is at 8:00 o'clock, I set to TDC and then position the rotor to #1 (8:00 o'clock) and still will not start.

I checked this over and over, GOSH!!!

What the heck is going on???

Spent a couple of hours in the garage this morning and still.

Javy
Posted By: danz91crx

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 05/11/15 02:16 AM

The #1 plug wire should be at around 8-9 o clock looking at the motor from the front bumper. #1 plug fires when the rotor is around 11-12 o clock. The rotor should point towards the fire wall or around where wires 2 and 6 go at TDC.
If you install your distributor like this

[Linked Image]

the rotor should point in the right direction
Posted By: JAVYPRO

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 05/16/15 03:41 PM

Timing is right, 99% sure it is the ECU These are the same symptoms as before and it got replaced with another one.

I might have to outsource one to test.

Javy
Posted By: JAVYPRO

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 05/21/15 02:15 AM

Uupppsss I had the timing on TDC exhaust, that is why it was not firing up. <img src="/forums/images/graemlins/scared.gif" alt="" /> Removed the cam gear cover on the driver side and used it s a guide to check where the timing was, set it to TDC intake, aligned the distributor points and it fired right uP. Wooooohhhoooo, it runs perfect.

Have to post pics, it looks awesome.

Javy
Posted By: Jay Ayala

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 05/21/15 02:36 AM

That's great news, I'm glad you got it done and everything is okay.
Posted By: JAVYPRO

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 05/23/15 02:55 PM

Here is the picture of the finished engine.
The paint on the plenum is from VHT called Wrinkle Plus and it gives this awesome texture. I painted the plenum and then very carefully with a very sharp blade I scrape the letters contour and followed up with some extra fine sand paper to give it a mirror like look. The picture doesn't make justice.

I also polished the throttle body using various steps. First a clean up with a bronze wire brush, then a deeper cleaning with the Dremel, 400 grit paper, then 2000 and finished it up with Mother's.

I also polished the internals of intake and plenum and the throttle response is magnificent.


Picture

Got others but will post later.

Javy
Posted By: Bernoulli

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 05/23/15 04:07 PM

Beauty!!
Posted By: Jay Ayala

Re: Hi it has been a while. Now Head gasket issue 90 LWB - 05/23/15 09:55 PM

JAY stop posting monster pics! <img src="/forums/images/graemlins/angry.gif" alt="" />
Posted By: JAVYPRO

Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB - 06/26/15 11:37 PM

Hello again,
I cannot believe this karma that is following me. Well, I guess that have to learn from or mistakes or details that we let slip through the cracks.

Engine has been working awesome until I decided to make a trip from Atlanta to Destin FL with the family. Took the 1990 LWB instead of the wife's Gen III, even when she wanted to, and all worked fine; made it to the Florida pan handle and back flawlessly.

The next day when I went to check the coolant level and <img src="/forums/images/graemlins/scared.gif" alt="" /> I couldn't believe my eyes @#%&%$!()\;@@ it is not coolant anymore it is oil, yes OIL. Not a milky mixture, It is literally oil. You will not believe how upset I am <img src="/forums/images/graemlins/evil.gif" alt="" />

I have been pondering on what could be the culprit. Right after I fixed it I knew I had to add and extra quart and so I did but a day or so later when I checked the oil it looked like it needed an additional quart plus I had a lifter that was louder than normal so I made the immediate assumption that it indeed needed another quart. Long and behold I was wrong the oil was too clean when I checked it and now I had 1 quart too much in the engine. That could damage the rear seal or overflow somewhere but it has no way to overflow into the cooling system, right?

If the answer to the above is no then it means that I might have another blown head gasket due to a warped or less than perfect head surface or a cracked head. Either way, I believe that I should have had the heads checked by the machine shop, and for that I am kicking myself.

It should be easier to take apart now that I know what I am getting myself into but, again, I am so <img src="/forums/images/graemlins/evil.gif" alt="" /> I can cry, kidding.

The thing is, I don't need this problem right now, not right now but I have no other choice. The 1988 SWB at 500k is saving the day again. It barely revs to 4k and the spark plugs are so messed up that they are incapable of burning he oil otherwise it keeps going and going.

Sorry for the long rant but I needed it.

Javy

NOTE: moderator, is there a way to reduce the size of the photo on the previous note? I got to find a way to post my pics, MSN seems not to be working.
Posted By: Jay Ayala

Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB - 06/27/15 09:01 PM

Oh JavyPro,
I'm sorry bro. I had something different but kind of like that happen to me too. I turned out to be that I didn't fully torque the intake manifold.

But yours sounds like something different all together. Have you tried a block tester? I don't know if it helps you now but it detects combustion fumes in your coolant. You have oil in your radiator, you will have combustion fumes no matter what. Time for a new set of heads? Clearwater?
Posted By: Jay Ayala

Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB - 06/27/15 09:04 PM

Oh yeah, Javier, I've meant to tell you this for a while but I keep forgetting. Thanks for the bottle opener. I appreciate it.
Posted By: JAVYPRO

Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB - 06/29/15 06:16 PM

Oh men, no problem at all; thank you for our help.

I am on vacation until tomorrow so today I am taking this thing apart to see what happened. I already talked to the guy at the machine shop and he will check the heads for me.

Javy
Posted By: JAVYPRO

Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB - 06/29/15 08:03 PM

OK, I emptied the radiator and the first half of the coolant showed some discoloration but no oil was present.

I then drained some more and about the last 2 cups did show oil.

Like I mentioned before, could it be that the extra quart of oil that I put in the engine somehow found it's way to the cooling system via the intake? The engine never smoked burning that extra oil. Hmmmmm

Yes, I hate to take this thing apart again.

Javy
Posted By: Jay Ayala

Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB - 06/30/15 08:28 PM

Javier,
Those are two separate and independent closed systems. There should be no WAY that they should cross contaminate that way. The only two ways I can think of that oil got into your coolant is #1 that the head gasket was not fully torqued and the head surface has warped. #2 The other way oil could get into coolant is human error, by pouring oil directly into the radiator.
Posted By: KrzyDav

Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB - 07/02/15 06:10 AM

Sorry to hear,,,,heads on these are so frustrating. <img src="/forums/images/graemlins/frown.gif" alt="" />. Vent/cry all you want,,,folks on here have sure provided a shoulder to me during my head gasket/over shaved head ordeal over the past 3 years.
Posted By: JAVYPRO

Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB - 07/23/15 05:11 PM

Ok guys,
Tearing the engine apart one more time. Got new head gaskets and will order new head bolts, again. I wish I had all the lifters to replace them now that I am in there but this engine was quite and smooth so I guess I will not do it for now.
In the meantime Jacobo the red SWB with almost 500K miles is saving the day. That little machine saved my life once and now continue to save the day when the others need some time off.

I will post updates, I hope it doesn't take long as this is the 3rd time I take it apart.

Javy
Posted By: JAVYPRO

Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB - 07/23/15 10:30 PM

Took me just 4 hours to tear it apart plus +/- 10 minutes to take them to the machine shop.
They are going to pressure test them to see if they are cracked or bent.

Got to wait, if they are unrepairable, I found them at Rockauto for $339 so lets see.
Javy
Posted By: off-roader

Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB - 07/28/15 06:31 PM

Quote
NOTE: moderator, is there a way to reduce the size of the photo on the previous note? I got to find a way to post my pics, MSN seems not to be working.

Fixed it! <img src="/forums/images/graemlins/cyclops.gif" alt="" />
Posted By: JAVYPRO

Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB - 08/12/15 01:18 PM

Thanks offroader.

Issue with the heads fixed <img src="/forums/images/graemlins/kewl.gif" alt="" />.

My friend at the machine shop found that I had drilled a little too far into the water jacket when drilling out the broken rocker bolt <img src="/forums/images/graemlins/scared.gif" alt="" /> No biggie, it was putting just a bit of oil into the coolant so he welded it up and since the heads were off he also cut them a bit to make them perfectly flat and have a clean seal surface plus cleaned the exhaust a bit.

It is evident that this has affected the heads performance in a positive way as this engine has come alive. It is not the same engine to which you will give it the beans and you will wait for it to respond No, no, no this thing goes.

It has to be all the little things, I am not building a screamer but little things help in a big way sometimes so others might come.

Javy
Posted By: Jay Ayala

Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB - 08/17/15 07:16 AM

Great News JavyPro!!!

I was wondering what had happened. It's a good reminder to all of us that we should be very diligent while extracting broken bolts on cylinder heads.
Posted By: JAVYPRO

Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB - 08/18/15 06:12 PM

Well, my joy didn't last long.

Engine is purring like a kitten and after a week of finishing it, yesterday i was driving home from the office when all the lights on the dash came on and the engine died.

It crank but doesn't start and I and suspecting it is the ECU since I got spark and fuel and everything else is new. I suspect is the ECU because on Friday I was at a traffic light and the revs went from 700 +/- to 2k and back to normal at 700, like a spike sent from the ISC.

So, I am searching for a 1990 ECU. I am tired of these ECU issues so I am looking into the MegaSquirt, even when not in my budget for now, as an alternative for a near future project.

So in the meantime Jacobo, red SWB with 500K miles, comes to save the day as daily driver once more.

Javy
Posted By: Movinfr8

Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB - 08/19/15 04:12 AM

Sorry to hear about this, I've been off the forum since selling my 95 to my brother in law, and I've been looking a little for a short wheel base, and just reading the posts. Not sure I want a 26 year old truck, but they just don't build anything like these any more!
Posted By: JAVYPRO

Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB - 09/01/15 05:24 PM

Question for those of you with the V6. When you switch to the ACC position on your ignition can you hear the electric fuel pump kicking? To tell you the truth i have not paid attention to it until now.

Mine cranks and out of the coil I have no spark, I thought that was my issue so I visited my local O'Reilly's and it happen that my coil, with lifetime warranty, is now obsolete and a new model is replacing it. They gave me the new model to replace my "bad" coil, I tried it and still I have no spark so I am more inclined to believe in my ECU problems.

But again, as I mentioned above can you hear your fuel pump with the key at ACC?

Javy
Posted By: danz91crx

Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB - 09/01/15 07:51 PM

No, the fuel pump only runs while cranking the engine.
The harness for the ignition control module are a known problem and could cause a no spark condition. Both the ICM and ECU have test methods in the FSM.
Posted By: 90rustymontero

Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB - 09/02/15 03:50 AM

Hey dude,

If it does turn out to be your ECU, I've got a spare for a '90 you can have for like $20 + shipping. It's just sitting in my garage collecting dust.
Posted By: JAVYPRO

Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB - 09/02/15 02:07 PM

Quote
No, the fuel pump only runs while cranking the engine.
The harness for the ignition control module are a known problem and could cause a no spark condition. Both the ICM and ECU have test methods in the FSM.


Thanks, I am undusting my FSM to see if I can pinpoint my problem.

Quote
Hey dude,

If it does turn out to be your ECU, I've got a spare for a '90 you can have for like $20 + shipping. It's just sitting in my garage collecting dust.


Sending you a PM

Thanks guys,
Javy
Posted By: JAVYPRO

Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB - 09/02/15 02:53 PM

90rustymontero,
Tried to send you a PM but I am having problems, might be the web page or the fact that I am at the office. Also tried to send you an e-mail but bounced back.

Anyway, I want the ECU send me a PM or e-mail me at javypro@bellsouth.net

Thanks,
Javy
Posted By: JAVYPRO

Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB - 10/01/15 04:47 PM

Guys,
Back to square one. Got the ECU repaired, installed it cranked it and NOTHING. It cranks but it doesn't start.

I am checking today my fuel pressure and spark. The weird issue is that I am not getting spark not even with a new coil, could it be the ignition module? it is that one that seats next to the coil, right?

What else can I check?

Javy
Posted By: danz91crx

Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB - 10/01/15 05:31 PM

Could be the ICM along with many other things. Testing components and checking connections is all I can suggest. Make sure your ECU plugs are all pushed in all the way, no wires came out of the plugs, the ground is hooked up. Look at check engine light operation. Check the main relay by listening for it to click after cranking and or unbolting it and taking the cover off. Test the ICM and both sides of the coil as described in the FSM. The dizzy could be a problem too...
Posted By: JAVYPRO

Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB - 10/09/15 02:37 PM

Originally Posted by danz91crx
Could be the ICM along with many other things. Testing components and checking connections is all I can suggest. Make sure your ECU plugs are all pushed in all the way, no wires came out of the plugs, the ground is hooked up. Look at check engine light operation. Check the main relay by listening for it to click after cranking and or unbolting it and taking the cover off. Test the ICM and both sides of the coil as described in the FSM. The dizzy could be a problem too...


OMG, this is insane. I tested all the sensors and relays and it all pointed to the crankshaft position sensor. Alright, time to place it back on TDC and remove the ignition.

Well, with the cap off I turned the engine and the ignition rotor did not move, WAIT A MINUTE!!! took the driver side camshaft cover off shocked belt was broken!!!

well Rockauto was a good price but the local O'Reilly had the Gates brand for $60 including the tensioner and I needed to get it running ASAP to I bought it.

Then to remove the crankshaft bolt I bought an impact wrench but the sucker still wouldn't come off, it likely has some thread locker. So, time for desperate measurement, with my ball pein hammer I bent the edge of the spacer between the timing gear on the crankshaft and the balancer, just about the width of the belt I slid the belt in very carefully and DONE.

It is running like a champ, now I just need to figure out why the tach is not working maybe I missed a wire or something.

Javy
Posted By: danz91crx

Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB - 10/09/15 04:23 PM

Congratulations on getting it running again.
Broken wires going to the capacitor and LC filter mounted on the coil bracket could be the cause of the tach not working.

As for the crank bolt I hope that impact you used was weak or something. If not,
I wouldn't try to remove that crank bolt again without being prepared to change the crank if it breaks. Resting a breaker bar on the frame and bumping the starter would be a good way to try to remove it next time
© 2020 4x4Wire TrailTalk