S14 SR Cam/Shim clearance?

[Wahl 136]

In the FSM I have it only says on
Pg. 85 section e. Select proper Shim thickness (t): t1 0.025 mm (.0010")

Shims are available in thicknesses from 2.800 mm (.1102") to 3.200 mm (1260") in steps of .025 mm (.0010")


The picture on the left displays a shim and shows it as being 2.800 mm (.1102").

So I'm confused is the OEM shim size 2.800 mm? If not does anyone know the correct shim height?

If I'm using aftermaket springs/retainers/cams but OEM valves does it effect the cam/shim clearance?

[Wahl 136]

I still haven't had any luck confirming it. I only have a few more days to get the info to my engine shop. Any help would greatly be appeciated!

[-L(-.O)]

hhmm i have the same isue. i just finished breaking my motor in. i also have aftermarket cams, springs, retainers, stock valves. the thing is my valves tapping like a whore on crack. i'm about to address the problem, but like you i read the fsm and it tells stock specs for stock cams. so i'm guessing that we gonna have to go by clearance and find the most suitable shims... hope that helps

[Wahl 136]

hhmm i have the same isue. i just finished breaking my motor in. i also have aftermarket cams, springs, retainers, stock valves. the thing is my valves tapping like a whore on crack. i'm about to address the problem, but like you i read the fsm and it tells stock specs for stock cams. so i'm guessing that we gonna have to go by clearance and find the most suitable shims... hope that helps


Anything is better than what I have now. I'm assuming since the lift is different that the shim clearance would be different to.

If there isn't any written specs to follow I just wonder if there is a guideline to follow.

[RedtopTech]

you have to use a dial indicator and measure the height of the guide shim. Then measure the height of the corresponding valve tip on the same rocker. use the difference b/w the two to find the correct shim.
you can use a magnetic dial indicator but there is a special tool which fits into the stock lifter location.
the point is to get the rocker arm to sit flush on both valves that it contacts. each shim will be different from the factory. you can measure them with a micrometer. the tollerance is very small so measure many times before deciding on the right ones.

[Wahl 136]

you have to use a dial indicator and measure the height of the guide shim. Then measure the height of the corresponding valve tip on the same rocker. use the difference b/w the two to find the correct shim.
you can use a magnetic dial indicator but there is a special tool which fits into the stock lifter location.
the point is to get the rocker arm to sit flush on both valves that it contacts. each shim will be different from the factory. you can measure them with a micrometer. the tollerance is very small so measure many times before deciding on the right ones.

Thank you sir! +1 for you