Cam button - to use or not?

[twoseater]

Hi Everyone - as my last post indicated the timing gears had to go. I have installed a cloyes timing chain, double roller.

The cam is a crane energizer and when I got the cam I also ordered the locking plate/bolt kit. The locking plate has tabs that are bent to prevent the cam bolts from loosening.

Now, the question! The cam button I have will not fit in the center hole of the new locking plate. So, do I forget about the safety tabs and use the exising locking plate to accomodate the cam button or forget about the cam button in favor of the saftey tabs?

My understanding is this button keeps the cam from moving forward/backward. I don't have a roller cam - its got hydrolic lifters so I think the forward/backward motion is not of the utmost concern?

Thanks!

 

[GerryLP]

Hi Everyone - as my last post indicated the timing gears had to go. I have installed a cloyes timing chain, double roller.

The cam is a crane energizer and when I got the cam I also ordered the locking plate/bolt kit. The locking plate has tabs that are bent to prevent the cam bolts from loosening.

Now, the question! The cam button I have will not fit in the center hole of the new locking plate. So, do I forget about the safety tabs and use the exising locking plate to accomodate the cam button or forget about the cam button in favor of the saftey tabs?

My understanding is this button keeps the cam from moving forward/backward. I don't have a roller cam - its got hydrolic lifters so I think the forward/backward motion is not of the utmost concern?

Thanks!

Two,

You're right. A flat-tappet hydraulic cam has the ramps machined in such a way that the cam will stay put. This is why the lifters tend to rotate in their bores.

GerryLP:cool

 

[Jack]

Two, You're right. A flat-tappet hydraulic cam has the ramps machined in such a way that the cam will stay put. This is why the lifters tend to rotate in their bores. GerryLP

True for virtually all flat-tappet motors ... hydraulic or solid, most have the angled ramps. Even so, flat-tappet in all-out race motor wants to walk & needs a button. But ... certainly not needed for street hydraulic flat-tappet energizer ... forget the button. You can still use the lock plate to help secure the 3 cam bolts.
JACK:gap

 

[twoseater]

All back together without the button! Thanks for the quick responses.