compression
02-16-2013, 04:15 PM
#1
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compression
What should the compression be on a 4.0? Trying to figure out why I can't stop the oil from getting into my filter box. Mine is running around 125, but it may be a head problem.
02-16-2013, 04:51 PM
#4
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Yep, comes out the dipstick, ccv system is open, tried buying the groumets, but you have to order them, engine is supposed to have around 160K on it, just put new rod bearing in it the other week, did noyice while doing that that most of the pistons fell down freely, night need rings?? but that could also mean that the MotorKote is doing it's job.
02-17-2013, 05:52 AM
#7
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Year: 1998
Model: Cherokee
Engine: 4.0
yea someone else that knows about motorkote
some reading
https://www.google.com/search?q=oil+...hrome&ie=UTF-8
some reading
https://www.google.com/search?q=oil+...hrome&ie=UTF-8
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02-17-2013, 06:00 AM
#8
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yea someone else that knows about motorkote
some reading
https://www.google.com/search?q=oil+...hrome&ie=UTF-8
some reading
https://www.google.com/search?q=oil+...hrome&ie=UTF-8
02-17-2013, 06:11 AM
#9
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Year: 1998
Model: Cherokee
Engine: 4.0
im a truck driver and its was hard to swallow spending 100 bucks for a gallon but kept hearing about it on trucking radio, so bit the bullet, oil temp went down 15 to 20 degrees
ive used it in the jeep and also use the spray too. Dont spray that stuff on plastic it eats it alive but it takes like a week
ive used it in the jeep and also use the spray too. Dont spray that stuff on plastic it eats it alive but it takes like a week
02-17-2013, 06:27 AM
#10
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
What year 4.0? No smoke out the tailpipe?
02-17-2013, 12:10 PM
#11
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im a truck driver and its was hard to swallow spending 100 bucks for a gallon but kept hearing about it on trucking radio, so bit the bullet, oil temp went down 15 to 20 degrees
ive used it in the jeep and also use the spray too. Dont spray that stuff on plastic it eats it alive but it takes like a week
ive used it in the jeep and also use the spray too. Dont spray that stuff on plastic it eats it alive but it takes like a week
I MotorKoted my whole Jeep, front to back, top to bottom. Fantastic stuff, whish I knew about it a few years ago. Yes it is expensive, but a gallon goes a long way, after the first dose. WalMart has it by the quart, 26 with a $5 rebate, almost cheaper the on line.
02-17-2013, 12:13 PM
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02-18-2013, 01:12 AM
#13
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Year: 1998
Model: Cherokee
Engine: 4.0
Heck, I use it on everything. Just used it on my rear wiper motor. Would stick in one spot most of the time, sprayed it inside and let it set, put it all back and now it goes like crazy.
I MotorKoted my whole Jeep, front to back, top to bottom. Fantastic stuff, whish I knew about it a few years ago. Yes it is expensive, but a gallon goes a long way, after the first dose. WalMart has it by the quart, 26 with a $5 rebate, almost cheaper the on line.
I MotorKoted my whole Jeep, front to back, top to bottom. Fantastic stuff, whish I knew about it a few years ago. Yes it is expensive, but a gallon goes a long way, after the first dose. WalMart has it by the quart, 26 with a $5 rebate, almost cheaper the on line.
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