M8 Lifter cuff bolts
Tourer
Joined: Jan 2022
Posts: 318
Likes: 228
From: Ontario
done lots of cam jobs. i find 2020+ are good, theyve never broken on me. 2017-2019 is when i find they went HAM with the loctite and they break.
theres a simple solution though. remove your cam plate and oil pump, get a heat gun and heat inside the cam chest where the bolt is nice and hot. they come out everytime.
theres a simple solution though. remove your cam plate and oil pump, get a heat gun and heat inside the cam chest where the bolt is nice and hot. they come out everytime.
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Club Member
Joined: Jun 2008
Posts: 1,076
Likes: 296
From: Casa Grande Az
Appreciate all of the replies. Previously I have used an induction tool on them, but it damages the cuff. My goal is to retain the factory cuffs going forward. As a side note, my current bike is a ‘24 year model.
Tourer
Joined: Jan 2022
Posts: 318
Likes: 228
From: Ontario
engines heat cycle. plastic doesnt like heat cycling. the billet ones are cheap and not going to fail. im not taking that chance for that little of a price tag especially when im modifying the engine to put out more power than stock (its design). as you add power, you add stress. its just the way it is.
and yes yes i know bigger v8's use plastic lifter cuffs, but they are built A LOT more stout and i HAVE seen those fail.
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Road Master
Joined: Oct 2021
Posts: 1,033
Likes: 543
From: SC
I have always kept the factory plastic cuffs with no problems. I always break a bolt loose by hand before using pneumatic or electric tools.
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Road Master
Joined: Mar 2024
Posts: 1,160
Likes: 511
From: Colorado
done lots of cam jobs. i find 2020+ are good, theyve never broken on me. 2017-2019 is when i find they went HAM with the loctite and they break.
theres a simple solution though. remove your cam plate and oil pump, get a heat gun and heat inside the cam chest where the bolt is nice and hot. they come out everytime.
theres a simple solution though. remove your cam plate and oil pump, get a heat gun and heat inside the cam chest where the bolt is nice and hot. they come out everytime.
So 2020 is no guarantee.
Road Master
Joined: Mar 2024
Posts: 1,160
Likes: 511
From: Colorado