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-   -   cometic rocker head gaskets (https://www.hdforums.com/forum/sportster-models/1257549-cometic-rocker-head-gaskets.html)

ballbreaker69 10-15-2018 01:44 PM

cometic rocker head gaskets
 
Looking at doing replacement rocket box gaskets due to the rear leaking badly. Purchased cometic gasket kit. The question I have is that my HD manual says to torque the head bolts from 18-22 foot lbs. Reading the instructions on the cometic kit it says to torque the head bolts to 42 ft lbs in sequence. Can anyone who has installed the Cometic kit chime in on the correct ft. lbs of torque and what your experience has been. Little confusing and don't want to strip anything. Thanks in advance.

lewk 10-15-2018 02:08 PM


Originally Posted by ballbreaker69 (Post 17757885)
... Can anyone who has installed the Cometic kit chime in on the correct ft. lbs of torque and what your experience has been...

I used the Cometic gaskets when I last fixed my lifters. For the torque, I used HD's instructions. All is well and I check every now and then to make sure the top is still torqued properly.


jackddg22 10-15-2018 02:36 PM

Use the Cometic Torque specs.

Madnss 10-15-2018 07:55 PM

9, 14, 22, 35, 42

I follow this procedure every time with cosmetic head and base gaskets.

apache snow 10-15-2018 08:56 PM

Yeah that's the sequence I follow as well, Never had a problem.

ballbreaker69 10-15-2018 09:49 PM

Just got home from work. Thanks to apache snow, Madnss, jackddg22 and lewk. . I will use the sequence as set out on the cometic kit instructions as you have suggested. I was initially a little afraid of the higher torque values but if it has worked for your sportsters with no problems then it will certainly work for me. Many thanks

aswracing 10-15-2018 10:34 PM


Originally Posted by ballbreaker69 (Post 17757885)
Looking at doing replacement rocket box gaskets due to the rear leaking badly. Purchased cometic gasket kit. The question I have is that my HD manual says to torque the head bolts from 18-22 foot lbs. Reading the instructions on the cometic kit it says to torque the head bolts to 42 ft lbs in sequence. Can anyone who has installed the Cometic kit chime in on the correct ft. lbs of torque and what your experience has been. Little confusing and don't want to strip anything. Thanks in advance.

The head bolts do not need to be touched to change the rocker box gaskets.

Don't confuse head bolts with rocker box bolts. None of the rocker box bolts takes anywhere near 42ft-lbs, you'll twist it right off.

multihdrdr 10-15-2018 10:51 PM

Yikes ... good "Save" ?

Hopefully 45 mins wasn't "Too Late" ;)

lewk 10-16-2018 12:14 AM


Originally Posted by multihdrdr (Post 17759105)
... Hopefully 45 mins wasn't "Too Late" ;)

We would have heard all about it by now 😱

apache snow 10-16-2018 06:09 AM

Reading in my old age must be escaping me. LOL


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