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ES71102 Bolt Lubricant
#1
Big Grin 
Hello,

Installing a new head/head gasket on a 2001 Jeep Cherokee. I've purchased a Felpro 530SD severe duty head gasket & ES71102 head bolts.

The factory service manual mentions cleaning the hole threads in the block and threads on the bolts, and then the torque sequence and values. No mention of using any kind of lubricant or oil on the bolts. (other than one bolt needing sealant as it passes through a coolant jacket)

There seems to be some debate among the Jeep forums on if the recommended specs are dry bolts or lubricated.

What does fel-pro recommend for their bolts? If 30w oil is used for light lubricant on the bolt threads and bolt head, do I still follow the listed torque specs?

Per the service manual and torque specs on FME-CAT.com 

1st step - 22 ft lbs
2nd step - 45 ft lbs
3rd step - 45 ft lbs again
4th step - Bolts 1-10 and 12-14 110 ft lbs, bolt 11 100 ft lbs

Thanks! Wink
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#2
Hi Charles,

We recommend cleaning the threads in the block and lightly lubricating the bolts. John Gurnig from the Fel-Pro Field Test Garage likes to lay the bolts out on a clean shop towel, apply a light squirt of oil to the threads and under the bolt heads from an oil can, then let the bolts sit on the towel for 5-10 minutes so any excess oil runs off. Any bolt that passes through a water jacket should have thread sealant applied to the threads and a drop of oil under the head of the bolt.

Follow the torque specs and sequence listed and you'll be on your way to a lasting repair!
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#3
Thumbs Up 
Great, thanks!


(10-12-2018, 12:59 PM)Support Wrote: Hi Charles,

We recommend cleaning the threads in the block and lightly lubricating the bolts. John Gurnig from the Fel-Pro Field Test Garage likes to lay the bolts out on a clean shop towel, apply a light squirt of oil to the threads and under the bolt heads from an oil can, then let the bolts sit on the towel for 5-10 minutes so any excess oil runs off. Any bolt that passes through a water jacket should have thread sealant applied to the threads and a drop of oil under the head of the bolt.

Follow the torque specs and sequence listed and you'll be on your way to a lasting repair!
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#4
You're welcome, good luck with your repair!
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