Need some help, problems checking for shim with new Throw Out Bearing
05-05-2012, 08:41 PM
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Need some help, problems checking for shim with new Throw Out Bearing Like the topic says, I followed the sticky made by Tick and when I check with my new Throw out bearing I get way too much clearance. I am running a brand new Textralia OZ700 clutch and a new GM throwout bearing I got from Tick through Colorado Speed.
For A in his diagram I get 2.3875"and for B I get 1.9325"which make the spacing between the two .455". So I figured something is definately not right so I dug out my stock throught bearing. Mind you both are GM units with AP stamped on both of them. With my stock one I get A at 2.3875 and B is now 2.302 which gives me .0855 clearance which is more than an 1/16 and less than an 1/8 just like they say. Does the master cylinder pump up at all to change the clearance as I have not bled it I just got it out of the box and installed it?Here is a picture of both of them side by side with both bottomed out. The new one sits about .300 lower than the old one.
For A in his diagram I get 2.3875"and for B I get 1.9325"which make the spacing between the two .455". So I figured something is definately not right so I dug out my stock throught bearing. Mind you both are GM units with AP stamped on both of them. With my stock one I get A at 2.3875 and B is now 2.302 which gives me .0855 clearance which is more than an 1/16 and less than an 1/8 just like they say. Does the master cylinder pump up at all to change the clearance as I have not bled it I just got it out of the box and installed it?Here is a picture of both of them side by side with both bottomed out. The new one sits about .300 lower than the old one.
05-05-2012, 09:53 PM
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You can see the line where the old one stopped about 1/4 inch from the bottom. It has a metal spacer in it that looks to protect the seal. It is fully bottomed out though, but it looks weird to me too. I put the new bearing on the old hydraulics and measured it too and the clearance was about a quarter of an inch so something is definately different about the stock one and the new one. Can I use .330 of shims stacked to get it to .125 spacing they say is needed?
