Slightly over-torqued main bearing caps
11-11-2021, 10:51 AM
#1
Junior Member
Thread Starter
Slightly over-torqued main bearing caps
1998 4.0- Currently building her up and doing some maintenance items under the hood.
After replacing the rear main seal I slightly over-torqued all the main bearing caps to ~85 ft-lbs, which is 5 lbs over what they should be. The bolts for the un-removed caps just barely tightened with the additional 5 ft-lbs.
Should I be concerned about the slight over-torqueing?
It's my understanding that this should not affect clearances, correct?
I still have the oil pan down and can loosen and re-torque them all if recommended. Thanks!
After replacing the rear main seal I slightly over-torqued all the main bearing caps to ~85 ft-lbs, which is 5 lbs over what they should be. The bolts for the un-removed caps just barely tightened with the additional 5 ft-lbs.
Should I be concerned about the slight over-torqueing?
It's my understanding that this should not affect clearances, correct?
I still have the oil pan down and can loosen and re-torque them all if recommended. Thanks!
The following 3 users liked this post by tech:
11-11-2021, 03:35 PM
#3
CF Veteran
I wouldn't worry about that either. Close enough. All torque really does is put a proper stretch on the bolts
The following 2 users liked this post by 4.3L XJ:
doublechaz (11-12-2021),
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11-11-2021, 03:35 PM
#4
Senior Member
Tech beat me to it but I was going to say that unless you patronize the Snap On truck a lot I doubt your torque wrench is that accurate
The following 2 users liked this post by exasemech:
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11-12-2021, 03:14 AM
#5
Senior Member
Join Date: Aug 2020
Location: Prescott, AZ
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Year: 1988
Model: Cherokee (XJ)
Engine: 4.0
I'm surprised no one has said you need a new engine, you should sell your house and move to Uruguay, your life is over!
Even a calibrated torque wrench can result in actual torque off by more than that if your technique isn't good and/or you don't follow the instructions on lubricating the fastener.
Don't forget how these cars got built in a factory by people, they weren't recovered from an alien space freighter wreck.
Even a calibrated torque wrench can result in actual torque off by more than that if your technique isn't good and/or you don't follow the instructions on lubricating the fastener.
Don't forget how these cars got built in a factory by people, they weren't recovered from an alien space freighter wreck.
11-12-2021, 07:52 AM
#6
CF Veteran
Once the caps bottom out....clearance remains the same no matter how tight you make them....until something snaps or pulls out. ...5 ft lbs is nothing
The following 2 users liked this post by bluejeep2001:
doublechaz (11-13-2021),
Mocha (11-12-2021)
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