Thread lock on single bolt cam?

[Cranky]

And All The ARP Bolts That Everyone Uses To Attach The Gear , Explain

Anyways , this didn't turn out so well over on Moparts

View attachment 570899

Got a link to that thread? I'd like to read that one lol

 

[Bee1971]

It was posted under the General Section , so it didn't get a lot of response s

http://board.moparts.org/ubbthreads...-its-worth-doing-do-it-right.html#Post2441771

 

[Cranky]

It was posted under the General Section , so it didn't get a lot of response s

http://board.moparts.org/ubbthreads...-its-worth-doing-do-it-right.html#Post2441771

Oh man, I know feets. He used to have (still does?) a turbo 440 in a 64 (?) Plymouth if I remember right. He came to the Houston Mopar show many years ago and we met up there. It was a very low budget build but it ran dang good. Again, if I remember right, he also had a Dodge pickup that was Cummins powered and was boosted pretty good too.

 

[bm02tj]

ARP designs there hardware for each application and takes heat expansion into consideration

 

[Daves69]

I'm looking at this picture. (from the Moparts link above) I notice a ring near the OD of the washer. Notice the ID of the cam gear. I'm thinking the Belleville was installed backwards.

 

[not so famous bob]

problem with a grade 8 bolt is that you are threading into cast iron
Grade 5 is plenty for cast iron
you want the bolt to stretch
grade 8 will not stretch at the factory torque and if you do torque it to stretch you can strip the cast iron
yes on the locktite
and you can reuse the bolt- you are not getting close to "torque to yield"

^^^^^^^^^^^^^^^^^^^^^^^^^^^
THIS, and I always use red Loctite, a little harder to get cleaned up later, but a better hold.

 

[Cranky]

Looked over tightened (or backwards) but would need a side view to see that. Feets isn't a newbie to this stuff so that's not likely.....people do make mistakes though.

 

[lewtot184]

And I always though the 3 bolt was due to the greater load of valve components on the gear connection.

IIRC '65 race hemi was the first year for the purple strip valve spring, serious spring for the day. bet the single bolt '65 hemi's didn't hold up.

 

[Garys1969RR]

In 1975 I had a 440 built I for racing , and put in a mushroom lifter cam, from Racer Brown. Single bolt, about a .590 lift. Torqued the bolt to 30 ft lbs, just like the service manual said. After idling for a few minutes at the track, the motor died and lost compression on 4 Cyls. Cam bolt had come loose, bent several valves. Now I always use loc title on that bolt, and I also safety wired that one. Worked fine after that. Now I try to use the 3 bolt gear with hi lift cams. The vibration in the race cam will cause the bolt to loosen. Then: disaster.

 

[wyrmrider]

just like the lady that backed into the fan