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Author Topic: Cam Tower Studs - how tight to seat  (Read 1273 times)

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Offline Wingnut74

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Cam Tower Studs - how tight to seat
« on: February 06, 2016, 02:11:38 PM »
74 CB750k4.  i'm about to put the cam tower studs in and I cannot recall what I was told on how tightly to seat the cam tower studs into the head. Nuts were 70" lbs i think. And since those open up to the to the outside what kind of thread sealant is recommended. thanks
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74 CB360 - Winter 2014/2015 Project
74 CB750 - Winter 2015/2016 Project
70 Something TBD - Winter 2016/2017 Project

Offline edwardmorris

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Re: Cam Tower Studs - how tight to seat
« Reply #1 on: February 06, 2016, 02:40:05 PM »
The studs have different length threads, I forget exactly but I believe the longer threaded end goes on top. The other end goes into the head and you just seat it snug. If you do not use a high temp thread sealant, its almost guaranteed to leak. Permatex's High Temp thread sealer works well. If you haven't already, review this thread again to make sure nothing was missed/overlooked.

http://forums.sohc4.net/index.php?topic=107040.0
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Offline flybox1

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Re: Cam Tower Studs - how tight to seat
« Reply #2 on: February 06, 2016, 04:26:44 PM »
I used ARP thread sealant, and no leaks.
I think I set mine in at 8ftlbs.
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'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

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1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
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Offline koendd

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Re: Cam Tower Studs - how tight to seat
« Reply #3 on: February 07, 2016, 02:01:46 AM »
I've used hylomar, worked good, no leaks.

Latest rebuild I've used permatex, haven't run it yet so wouldn't know but seems to be up to the job...
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1972 cb750K2 brat
1976 cb360
1984 GPZ900R
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