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Purchase/technical advice: 3.5L SR, $600 #1015084 12/12/10 08:14 PM
Joined: Oct 2003
Posts: 715
socalmonty Offline OP
Rock Warrior
Hey gang,

The semester is coming to a close so the hunt is ramping up again! Came across an SR that needs some mechanical help, though it *seems* like it might not be that big of a deal. Here's the skinny:

3.5L SR, 150k miles
Smokes on startup and under accel
Oil is sludgy
(Sounds to me like head gaskets)
Brakes screech loudly
(I'm assuming worst case scenario, brakes all the way around)

I'll also need to handle DMV fees and smog. I have a smog guy, and I will check DMV fees tomorrow morning. It should be under $250.

The price on the vehicle is $600.

I would have to either (1) travel to the truck, make shoddy repairs, and limp it home or (2) borrow someone's tow rig and trailer it back.

Summary...
150k miles, needs brakes and HG. I'm assuming the rings and bearings are good at that mileage.

Cost to repair...
I may try a liquid HG repair first, as I have some in the garage. If it works, I'm only out the cost of fluids, which will need to be flushed anyway. If that doesn't work, I'll be in for HG's and valve stem seals (I can do this at home). The HG set is $180. Brakes are $250 for new discs and pads all the way around.

Parts total, minus maintenance parts (HG set, brakes): $500, with some cushion built in.

What do you guys think? Should I arrange to go have a look? I'm kinda <img src="/forums/images/graemlins/scared.gif" alt="" /> about it!


Sean - Orange County, CA
MAIL: seanwilliams78@gmail.com
1995 Montero SR - For exploring and getting away!
1994 Volvo 850 Turbo - 402hp and counting!
1966 VW Bug 2275cc - For stoplight drags!
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Re: Purchase/technical advice: 3.5L SR, $600 [Re: socalmonty] #1015085 12/12/10 09:36 PM
Joined: Nov 2003
Posts: 5,690
87Montero Offline
Trail Leader
***
Sounds like some piss poor maintenance on it. If the engine is in that rough of shape - Can't imagine the rest of the truck not much better.

If I'm wrong $600 is a good deal.. and you can refresh the whole engine and tune it up for what the truck's worth probably.


1999 Mitsu Montero - Crappy Weather
1992 Isuzu Pickup - Zombie Apocalypse
2008 Saturn Sky Redline - Nice Weather
Re: Purchase/technical advice: 3.5L SR, $600 [Re: 87Montero] #1015086 12/12/10 10:06 PM
Joined: Jan 2001
Posts: 13,649
fasteddy Offline
Web Wheeler
*****
I don't see any money for having the heads milled flat, either, or replacement of the lower manifold/butterfly assembly.


Not responsible for advice not taken...
Re: Purchase/technical advice: 3.5L SR, $600 [Re: fasteddy] #1015087 12/13/10 06:32 AM
Joined: Oct 2003
Posts: 715
socalmonty Offline OP
Rock Warrior
Quote
Sounds like some piss poor maintenance on it. If the engine is in that rough of shape - Can't imagine the rest of the truck not much better.

If I'm wrong $600 is a good deal.. and you can refresh the whole engine and tune it up for what the truck's worth probably.


My plans are hinged on pictures of the truck. I'll decide from the photos whether I'm going to go look at it. But if it's in fair shape, and the liquid HG repair actually works...I'll be all in for about $1000. I won't hold my breath...but, stranger things have happened. We'll see.

Quote
I don't see any money for having the heads milled flat, either, or replacement of the lower manifold/butterfly assembly.


Heads would cost $40/each to resurface, if they're warped. I can check them at home first, it may be only one of them. As for this butterfly assy...is this something that automatically needs to be replaced? I didn't see an item with that description available on the parts sites I was looking at. <img src="/forums/images/graemlins/confused.gif" alt="" />


Sean - Orange County, CA
MAIL: seanwilliams78@gmail.com
1995 Montero SR - For exploring and getting away!
1994 Volvo 850 Turbo - 402hp and counting!
1966 VW Bug 2275cc - For stoplight drags!
Re: Purchase/technical advice: 3.5L SR, $600 [Re: socalmonty] #1015088 12/13/10 09:47 AM
Joined: Apr 2006
Posts: 1,193
mxmikie Offline
Body Damage is Cool
i rent the tool to do the valve stem seals i also have a set of head gaskets for it i also have a lower intake with the butter flys removed

Last edited by mxmikie; 12/13/10 09:48 AM.

it dosent have to be surrounded by water to be an island
Re: Purchase/technical advice: 3.5L SR, $600 [Re: mxmikie] #1015089 12/13/10 08:22 PM
Joined: Nov 2009
Posts: 227
xFezx Offline
Wheeler
I would buy it. Of course, just work them down too, I would just tell them all the money at max what the pros would do the work for.


You can call me Fez
'95 SR 15x8 steel rims w/ 33x12.5 Duratracs, cranked torsion bars, "Baja" lights
'09 Nissan Sentra SR
Re: Purchase/technical advice: 3.5L SR, $600 [Re: xFezx] #1015090 12/13/10 08:59 PM
Joined: Jan 2001
Posts: 13,649
fasteddy Offline
Web Wheeler
*****
The butterfly assy is the lower intake. It changes the intake path at around 3000rpms from the long small runners for low speed to the shorter fatter runners for higher rpms - an intake tuning trick to make the power band wider.

THe butterflies tend to break off the shaft and eat up the engine when the shaft bushings get loose and let them vibrate, eating up the screw heads. If your shafts are tight, you should be ok.


Not responsible for advice not taken...
Re: Purchase/technical advice: 3.5L SR, $600 [Re: fasteddy] #1015091 12/14/10 04:13 AM
Joined: Sep 2010
Posts: 24
admiralmutiny Offline
Need a Spot
Sounds like a good deal to me. I paid more than that for my heap with 230K miles and signs of a blown HG. It drove half way decent though and just idled rough with no smoke or blowby, everything worked, OK leather int etc.








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