Had the flywheel resurfaced for my clutch job, but was curious why a shim isn't required? Thanks.

vmax84

 

I believe you do not understand how the clutch can still engage the flywheel properly after the flywheel has been surfaced, correct?

The throwout arm provides constant pressure on the throwout bearing which in turn pushes the splines on your clutch in. The amount that the clutch splines must be pushed in is not an exact amount - If you apply to little pressure it will not disengage the clutch however, you cannot overextend the splines(well to a point).

The amount that was taken off your flywheel was most likely in the .005" range so its not a whole lot. In the end, you didn't remove enough material to really matter

That is my non scientific, "how I understand it" explanation


Kat

 

Kinda like a brake rotor/drum, it's designed to wear within certain limits. Down to a specific thickness, before needing replaced.

 

As you stated, JustThinkin, the machinist said the flywheel was in real good shape......only removed .005 of material.

89 4runner with 22re

Thanks.

vmax84

 

The input shaft on the trans has a splined area longer than the splined area inside the clutch, allowing to move a little (thou is doesnt move once bolted up), so the only thing that is important in the .020 step, which you have since it was resurfaced.

 

Thanks again.

vmax84