Thanks for the tip

During the past months I have replaced the clutch assembly in a 74 240z, 78 280z, and a 79 280zx.  I ordered and received all three clutch kits from Zcardepot and all three worked just fine!  

@Sailor Bob what's the manufacture date of your car?  I'm guessing this is an oddball early model problem.

31 minutes ago, mayolives said:

During the past months I have replaced the clutch assembly in a 74 240z, 78 280z, and a 79 280zx.  I ordered and received all three clutch kits from Zcardepot and all three worked just fine!  

Wouldn’t the 74 be a 260Z?

51 minutes ago, rcv said:

@Sailor Bob what's the manufacture date of your car?  I'm guessing this is an oddball early model problem.

Its a 73 made in late 72  , 9/72

Edited March 2, 20214 yr by Sailor Bob

32 minutes ago, Racer X said:

Wouldn’t the 74 be a 260Z?

Yes, That is my typo.  My 240 is a 1973. Opps!

On 2/28/2021 at 10:09 AM, Sailor Bob said:

I seem to have exactly the same issue

Just to be sure, you showed the picture of the clutch fork hitting the back of the hole in the bellhousing.  Is that the problem?  The 5 pages is about how the problem couldn't be solved by the normal methods, and it could only be solved by lengthening the pivot stud.  But that is very unusual.

You might just need the tall throwout bearing sleeve.  That is the most common solution.  Normal.

Where would a fella find these long sleeves?

You probably want  - 2122 here.  I think that it's the tallest.  https://www.thezstore.com/page/TZS/PROD/21-2122

Put "collar" in the search box to see more.

https://www.thezstore.com/store/merchant.mvc?

@Terrapin Z might have one and could measure it for you too, probably.  You should get more measurements though.  Distance from the bottom of the pressure plate/clutch cover to the surface that the throwout bearing sits on.  Then you can do the math to see which collar/sleeve you need.

I have all of the measurements for the various collars (using the important dimensions) in a handy diagram here:

 

 

13 hours ago, Zed Head said:

 

@Terrapin Z might have one and could measure it for you too, probably.  You should get more measurements though.  Distance from the bottom of the pressure plate/clutch cover to the surface that the throwout bearing sits on.  Then you can do the math to see which collar/sleeve you need.

I do have a number of these in various sizes, all used of course. 

I have the same chart as RCV posted ^^ and this one as well. 

Let me know if you need more measurements.

Thanks. Im thinking type b4. I have to take it apart again to measure. Might be the weekend befor i get back to it.

i actually have a complete five speed from a zx in my shed. Im thinking there may be a fork/to bearing in it. Havent been in it in months so the snow is  blocking the door... canada

Edited March 3, 20214 yr by Sailor Bob