Throw-out Release Bearing Orientation

[240260280z]

Assembling new clutch kit. I forget how the old bearing was oriented. The new one is a Koyo RCT4075-1S that looks like this:

The left picture above is flatter side with writing and the face metal wraps around to make the bearing side

The right picture above is the rounder side and its face terminates ~ 2mm from the edge (you can see the gap).

Which side faces towards the clutch (front of engine)?

(I am stuck as it does not make sense to put ID where it will be chewed up, but the side with the less metal will be weaker...I would guess the left picture's side with the writing goes towards the clutch).

Edited May 23, 2012 by Blue

[cbuczesk]

The round part goes against the clutch pressure plate. The side with writing is pressed against the collar. I'll see if I can get a pic of one of mine...

Chuck

[240260280z]

72 fsm

Edited May 23, 2012 by Blue

[cbuczesk]

Here's a pic...

Chuck

[240260280z]

Thanks!

[cbuczesk]

You're welcome! Glad I could help.

Chuck

[J-hop]

Blue (and others) how are you planning on pressing the throwout bearing into the collar? I just received mine, haven't attempted to put it in but I am assuming you need a press of sorts??

[cbuczesk]

I used a press. You can probably use a vice and a socket to press it in.

Chuck

[240260280z]

I cleaned up the collar with scotchbrite pad, put it in the freezer, placed on a block of wood, then tapped the bearing in place using a hammer and big socket. The socket should not press against the bearing shell. It should only press against the inner ring of the bearing as in the drawing above.

You may be able to do this with a C-clamp too. Some antiseize on the collar may help. I just did it dry.