rear main seal

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rear main seal

Post  tek-tonic on Wed Nov 21, 2007 4:48 am

not sure where this belongs but I have a write up on replacing a rear main seal on a 4.0L jeep

http://www.tek-tonic.com/rearmainseal1.html

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Re: rear main seal

Post  Mud Bandit on Thu Nov 22, 2007 12:40 am

I moved this post here. I had not even thought about an area like this. Thanks.

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Re: rear main seal

Post  tek-tonic on Fri Nov 23, 2007 11:40 pm

not an expert just a normal guy's try at a common problem. hope it helps a few out...

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main cap torque

Post  BLACKSMOKER on Sat May 24, 2008 10:58 pm

Very helpful article for the do-it-yourself mechanic...the only information that needs updating is the torque spec on the main bearing cap. While 80 ft/lbs is the correct torque spec, that needs to be your FINAL tightening value. You MUST tighten the main cap bolts in 3 steps...
Step 1 40 ft/lbs
Step 2 70 ft/lbs
Step 3 80 ft/lbs
Failure to follow this procedure can cause incorrect seating of the main cap and bearing and can lead to premature bearing wear and a worse case scenario of a warped or bent or gouged crankshaft. One last thing, this type of repair should only cost about $375 at a reputable repair shop and about $450 at your Jeep dealer. Book labor time is 4.3 hours $20 dollars for a factory rear main seal, $37 for a factory oil pan gasket and $15 for the oil and filter. Hope this helps

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main cap torque

Post  BLACKSMOKER on Sat May 24, 2008 11:01 pm

Very helpful article for the do-it-yourself mechanic...the only information that needs updating is the torque spec on the main bearing cap. While 80 ft/lbs is the correct torque spec, that needs to be your FINAL tightening value. You MUST tighten the main cap bolts in 3 steps...
Step 1--- 40 ft/lbs
Step 2--- 70 ft/lbs
Step 3--- 80 ft/lbs
Failure to follow this procedure can cause incorrect seating of the main cap and bearing and can lead to premature bearing wear and a worse case scenario of a warped or bent or gouged crankshaft. One last thing, this type of repair should only cost about $375 at a reputable repair shop and about $450 at your Jeep dealer. Book labor time is 4.3 hours $20 dollars for a factory rear main seal, $37 for a factory oil pan gasket and $15 for the oil and filter. Hope this helps

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Re: rear main seal

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