My '72 240z has a 5spd from a '81 280zx. I just recently replaced the clutch master with one for a 240z as well as a clutch slave for a 240z since the one on the car had the threaded adjustable push rod like one for a 240z. I also swapped the longer push rod from the old master cylinder to the new one. After several bleed and adjustments I am at a point that it goes in to gear fine except for reverse. The threaded rod on the master cylinder is maxed out. My question is, should I get a clutch slave for a '81 280zx? Since my fork has a hole in it for the threaded rod to go through I suspect the answer is no but wanted to post the question here.

Another issue which I discovered on both the clutch and brake pedal is that the holes have been elongated thus building in 3-5mm of movement which needs to be corrected.

No responses yet? I have added a picture to show what it currently looks like.

My '72 240z has a 5spd from a '81 280zx. I just recently replaced the clutch master with one for a 240z as well as a clutch slave for a 240z since the one on the car had the threaded adjustable push rod like one for a 240z. I

What was on the car before and how well did it work? Hard to tell if you've accidentally created a new problem or if you were trying to fix an old one. If it worked before, then something's changed, if not, maybe it was never right.

The clutch slave that was on was a Nabco unit and leaking very bad. I have only driven the car a mile so I cannot give a lot of feedback on how it performed before I installed the new master and slave cylinders. The reason I changed the master was because everyone says if you change one you need to change the other. I could dig the old Nabco unit out of the trash but from what I have read they do not rebuild well unless they are re-sleeved.

How much free play is there between the clutch pedal and the master? And also, between the slave and the release arm?

Your descripton of the symptom suggests the clutch is not fully releasing so too much free play could be the cause. I notice in your photo the adjustment is fully bottomed which seems odd some how.

How much free play is there between the clutch pedal and the master? And also, between the slave and the release arm?

Your descripton of the symptom suggests the clutch is not fully releasing so too much free play could be the cause. I notice in your photo the adjustment is fully bottomed which seems odd some how.

I agree. I think the slave rod needs to be adjusted. I have an 82 ZX trans in my 72 and the rod is somewhere in the middle. I just replace my slave a couple days ago.

Chuck

Just want to say thank you and let everyone know they were correct. I adjusted it up a little more and now it shifts perfect with plenty of clutch pedal pressure and feedback.

Cool. Glad you got working correctly.