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Clutch Slave Cylinder - Interchangeable with gearbox conversions?


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#1 sexual_sushi

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Posted 13 September 2009 - 02:48 PM

I'm looking to replace my clutch slave cylinder...

Firstly are the slave cylinders interchangeable between 240z, 260z and 280zx? I assumed they were and a lot of ebay listings list 1 slave for the 240z, 260z and 280z (not zx). As a side note, black dragon lists a different slave rebuild kit for 70-72, 73-75, 75-83 and 81-83 (turbo).

Secondly, if the answer to the above question is no, I would assume that a 240z with a 280zx box has a 280zx slave cylinder? (My 240z came with a 280zx box)

Thirdly, if I have since converted to a s14 5 speed gearbox and kept the slave cylinder that was on the car, what should I replace it with?




#2 NZeder

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Posted 13 September 2009 - 05:23 PM

Well I know when I was at the track with my old 240z - I lost the clutch slave cylinder (old and leaked before I even raced - the drive to the track killed it) anyway the local REPCO did not have any stock for a 240z/260z/280zx so I just asked for a Skyline unit (which they had) I was told by the PFY (for those that need to know PFY = Pimple Faced Youth) it would not work as it was for a Skyline not a Datsun 240z. I told him just to sell it to me. At the track it was installed and worked perfect bolted right up and was the same size and stroke (as I knew it would be). The only use was the return spring from the clutch fork as this new cylinder did not have the location for the spring to hock into - so I used a different spring (longer) and hocked it around the bleed nipple.

Also I know the Datsun 240z slave cylinder will bolt up to the Skyline 71C box as this is the setup in my mates racecar.

Also the S13/14 uses the same clutch slave cylinder the skyline unit I installed R31/R32/R33 push type (ie RB20DE/T,RB25DE/T)

#3 Mr240z

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Posted 13 September 2009 - 05:29 PM

Clutch slave cylinder  JB4055

This slave cylinder fits them all.........

#4 xa1973

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Posted 13 September 2009 - 05:48 PM

Clutch slave cylinder  JB4055

This slave cylinder fits them all.........


You dont by chance work for an Auto Parts Group do you Pauly...

Im impressed with the speed you always source and list parts and NO's

#5 Mr240z

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Posted 13 September 2009 - 05:57 PM

You dont by chance work for an Auto Parts Group do you Pauly...

Im impressed with the speed you always source and list parts and NO's


Jeff I managed Autopro Homebush for 15 years...

For the last 4 years I've been working for a council cutting grass, Big change..

#6 xa1973

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Posted 13 September 2009 - 06:12 PM

Jeff I managed Autopro Homebush for 15 years...

For the last 4 years I've been working for a council cutting grass, Big change..


All good Mate...I thought that might have been the case.....



#7 NZeder

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Posted 13 September 2009 - 07:04 PM

Clutch slave cylinder  JB4055

This slave cylinder fits them all.........

That also cross references with a Celica ST162 too

#8 Zedman240®

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Posted 13 September 2009 - 08:29 PM

With my RB gearbox in the 240, I tried using the Skyline cylinder but it didn't have enough travel. installed the zed one, worked fine. Compared the two bores, Skyline one was larger = less travel, zed cylinder was smaller = more movement for given pedal travel.

#9 sexual_sushi

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Posted 14 September 2009 - 08:16 PM

Thanks for all the info guys!

So basically it sounds like one slave cylinder fits every car ever made haha (joke).

I shall order a JB4055 tomorrow.






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