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Re: Prelminary Leak Down test results [Re: DaJeeper] #397507
02/12/04 03:00 AM
02/12/04 03:00 AM
DaJeeper  Offline OP
Wheeler
Joined: Nov 2002
Posts: 185
Sebring, Fl
Offical Complete results of the Leak down test is as follows:

#1 14.4%
#2 24.5%
#3 17.7%
#4 11.1%
#5 10.0%
#6 13.3%

From the Off-Road World
Re: Prelminary Leak Down test results [Re: DaJeeper] #397508
02/12/04 08:05 AM
02/12/04 08:05 AM
A
Anonymous
Unregistered

with those results and your stable compression.... put the jeep in service and ignor it. sounds like number 2 has valve problems.... but 24.... on an older engine..... its fine. if the smoke is bothering you see whats wrong with the head/valves.

Re: Prelminary Leak Down test results #397509
02/12/04 08:16 AM
02/12/04 08:16 AM
DaJeeper  Offline OP
Wheeler
Joined: Nov 2002
Posts: 185
Sebring, Fl
Well Sunder, If I wasn't getting the fouled plug on #2 I wouldn't give it a second thought. I'm certainly not looking for any extra work for sure.

I'll tell you one thing, with a fresh plug in #2 the jeep runs like heck. Very spicy motor. If I could get rid of this issue with #2 I'd be very happy.

Re: Prelminary Leak Down test results [Re: DaJeeper] #397510
02/12/04 09:45 AM
02/12/04 09:45 AM
DaJeeper  Offline OP
Wheeler
Joined: Nov 2002
Posts: 185
Sebring, Fl
Sunder, another question. Is it because the compression is good that you think it's the head/valves rather than rings on the leak down test?

Also, given the compressiong and leak down test results, do you think the engine can handle the 4.0L head?

Thanks,

Re: Prelminary Leak Down test results [Re: DaJeeper] #397511
02/12/04 11:00 AM
02/12/04 11:00 AM
A
Anonymous
Unregistered

Just a quick note. I have used BG44 before. It does a great job cleaning carbon and junk. If ya pour a bit on a piston head fulll of gunk, it will be clean in 5 mins. Ran it in my 79 blazer 350 and you could eat off the inside after. Ran great after use.

Where are you getting the 44 from? I havent seen it in years. Good luck with your engine man... my fingers are crossed for ya.

Re: Prelminary Leak Down test results #397512
02/12/04 05:22 PM
02/12/04 05:22 PM
DaJeeper  Offline OP
Wheeler
Joined: Nov 2002
Posts: 185
Sebring, Fl

Re: Prelminary Leak Down test results [Re: DaJeeper] #397513
02/12/04 07:06 PM
02/12/04 07:06 PM
A
Anonymous
Unregistered

compression tests usually give you ring status adn leak down test show moe problems with valves. did you do the stethecope in the intake crank and exhaust like i suggetsted?? it will tell you ware the air is leaking out from. with good solid numbers across the board on a compression test i'd say your bottom end could take a 4.0 head.

Re: Prelminary Leak Down test results #397514
02/12/04 07:12 PM
02/12/04 07:12 PM
DaJeeper  Offline OP
Wheeler
Joined: Nov 2002
Posts: 185
Sebring, Fl
Sorry, haven't be able to find a Stethoscope, are they pretty cheap? Where do you pick one up?

Re: Prelminary Leak Down test results [Re: DaJeeper] #397515
02/12/04 07:15 PM
02/12/04 07:15 PM
A
Anonymous
Unregistered

autozone and carquest had a cheep stethescope with a vibration probe attached to it for like 15 bucks?? i think. jsut pull the little probe off and listen.

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