Crankshaft, timing chain or ....Video
10-29-2011, 01:17 PM
#46
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Location: Ohio
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Year: 2000
Model: Cherokee
Engine: 4.0
I'm still of the opinion that if the jeep was running well, not using oil, and had decent power, to ignore the compression readings and drive. Do all your other fixing up, and when the engine does decide to go, THEN rebuild or exchange. May be putting the cart before the horse. I heard nothing about the Quality of its running,, only the sloppy timing chain video, which was solved.
My 2 cents...
My 2 cents...
10-29-2011, 02:35 PM
#47
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Location: Las Vegas
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Year: 1999
Model: Cherokee
Engine: 4.0
I'm still of the opinion that if the jeep was running well, not using oil, and had decent power, to ignore the compression readings and drive. Do all your other fixing up, and when the engine does decide to go, THEN rebuild or exchange. May be putting the cart before the horse. I heard nothing about the Quality of its running,, only the sloppy timing chain video, which was solved.
My 2 cents...
My 2 cents...
I running fine.
I did a leakdown test, appreciate if fellow members can chime in.
Thanks in advance.
10-29-2011, 02:45 PM
#48
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Year: 1989
Model: Cherokee
Engine: 4.0
I do know that the straight 6 engine has a lot of torque due to the long stroke, and massive crankshaft. They're like a tractor motor! It may be that you do have lower than normal compression, and thus lower horsepower (lets say dropped from 190 to 150 or something) but aren't noticing it because those engines are kind of over built and have very decent power. Also, maybe your compression gauge is messed up? Lessee, What kind of oil pressure are you running? Indicative of a worn out engine... Does the pressure drop noticeably after warming up? I understand your puzzlement for sure...
10-29-2011, 02:58 PM
#49
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Join Date: Jan 2011
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Year: 1999
Model: Cherokee
Engine: 4.0
I do know that the straight 6 engine has a lot of torque due to the long stroke, and massive crankshaft. They're like a tractor motor! It may be that you do have lower than normal compression, and thus lower horsepower (lets say dropped from 190 to 150 or something) but aren't noticing it because those engines are kind of over built and have very decent power. Also, maybe your compression gauge is messed up? Lessee, What kind of oil pressure are you running? Indicative of a worn out engine... Does the pressure drop noticeably after warming up? I understand your puzzlement for sure...
.Oil pressure running at 15@idle and 35@2500rpm.
Feel free to chime in here.
Thx.
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