Hydraulic Roller Cam Button End Play

[Darrah]

If the rear cam plug is out you can put a dial indicator on the back of the cam to measure end play.
might be able to do the same off a cam love with an indicator that measures at an angle?

The cam lobe is what I used when setting mine. Pretty easy to rig up a dial indicator and get a good reading. Not 100% parallel to the cam, but certainly close enough.

 

[not so famous bob]

I have installed a hydraulic roller cam in a 440 that I am building.
I have 440 Source cam button 200-1170, nylon.
I have a stock timing cover that I primed with Rustoleum High Heat Gray, then baked.
440 source recommends endplay .005-010" (distance from cam to back of timing chain cover). Seems tight.
Is that the end play spec you generally use?
Length of button, front to back as pictured in .5 inches. Timing chain cover will not seat against block.
I am thinking of grinding down cam button in small increments, then using Play-Do on front of cam button with the timing chain cover test installed.
Anyone have the length front to back of a cam button that fits?
Is there a better way to measure this clearance?
Thanks
View attachment 1944547
View attachment 1944548

first off , you need to reinforce the timing cover some way , , I set mine at .010 max. , about 12ish yrs ago , no problems ...

 

[LSS&B]

MRE - Billet Timing Cover MRE - Billet Timing Cover

If the rear cam plug is out you can put a dial indicator on the back of the cam to measure end play.
might be able to do the same off a cam love with an indicator that measures at an angle?
I think the cover gasket is around 0.010" thick? Maybe trim the cam button to where the cover just touches and add the gasket.
I use the rollerized cam timing set, so I don't worry if I'm on the tight side with the stock timing chain cover.
On the other hand, I just ordered the extra thick timing chain cover from 440 Source so I can compare it to the stock one.
They also sell the extra thick cover With a cam button reinforcement: Timing Cover - EXTRA THICK - With Cam Button Reinforcement
Seems like a neat idea if not a bit overkill.

From the first photo, it looks like the cam button is not sitting down into the hole in the timing chain gear?
Usually have to clearance the cam button for the timing gear bolts.

For that price, you can’t go wrong.

first off , you need to reinforce the timing cover some way , , I set mine at .010 max. , about 12ish yrs ago , no problems ...

AR224 $400.99 from Mancini is a reinforced timing chain cover and has a window/removable plate for setting end play
AR281 $60.99 from Mancini is Torrington bearing cam button that is matched to this timing chain cover
Although pricey, is this the best solution?
Can I run stock alternator and power steering brackets with it?
(The 440 Source Timing Chain Cover at $59.95 is a $400 savings, with no easy way to measure end play. Savings is less if I replace my cam button. I need to check thickness of my stock timing chain cover to see if it's less than .083", although with the plate the 440 Source triangle is .166". Tempting to do like @Darrah said and set up end play measurement at an angle )
AR224 pics