Clutch help 4 to 5 tranny swap

[Papa Deuce]

I bought a 280z, my first one......Someone has converted it to a 5 speed. The clutch has no adjustment left out, and it engages at about 2 inches from the floor.......so the tranny shifts hard (hard to go in gear) and clanks a lot.......Could there be wron components, like the clutch fork or the TOB? The pushrod on the master is at the last thread, the slave cylinder pushrod is hanging way out just to touch the clutch fork......I am at a loss, this thing needs to be tightened up......Help?

[Arne]

It is quite possible that when the swap occurred, they have a mis-matched throwout bearing collar and pressure plate. You may have to pull the transmission to figure out what they put in there so you can correct it.

[Papa Deuce]

How would I know which to use.......I assume they are different for 4 or 5 speed....and is the clutch plate the same?

[Arne]

Actually, the transmission doesn't matter. Different years of cars used different height pressure plates and had throwout bearing collars to suit whichever pressure plate was used. The drive plate and T-O bearing itself were all the same regardless of the other parts.

Unfortunately, I can't think of any way to verify whether this might be your problem without dropping the transmission and measuring parts. But your description of the problem certainly sounds like this is a likely possibility. Especially how the PO used every possible thread on the pushrod and such to try to get enough travel. Sounds like you have both a short collar and a short pressure plate.

Here's a page that helps describe the issue with pictures:

http://zparts.com/zptech/articles/trans_swap%20parts/4tobear_specs1.html

[sblake01]

You know, it could just be the the pedal free play is out of adjustment.

[Arne]

Isn't the free play on a 280Z adjusted on the master cylinder pushrod? If so, he already stated that it is on the last thread there.

[sblake01]

I said free play adjustment, I menat pedal height adjustment but they tie in with each other:

Edited April 1, 2009 by sblake01

[Papa Deuce]

A short pp would explain the long portion of the slave cyl pushrod hanging out. So, I need to check the pp and the tob collar.

[Arne]

If you haven't already, it'd be worth rechecking all the adjustments again just to be certain, but it sounds like you've already done that. On a later car ('72 and newer) the only adjustments are the pedal height and the free play (pushrod length).

[Papa Deuce]

I'll check the height in the morning. I know the pedal is about an inch or so off towards the floor from the proper measurement but I think it will be worth it to take it apart to inspect it all. I'll use this thread to keep track.

[sblake01]

After re reading this, Arne is likely right. You either have the mismached compenents or worn components. Does the clutch slip?

[Papa Deuce]

The clutch slipped the other day, but I dumped the hell out of the it trying to show off......I went to check the freeplay adjustment today, i cant get to the thing to sdjust it, but I did take the pedal off of the master cyl PR, and the rod is out as far as it will go, so then the freeplay cant be adjusted any farther foward. I have to go to Reno for a few days to tattoo, but when I get back (mon) I am going to take the time to drop the tranny and check it all out.