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PostPosted: Thu Dec 21, 2017 4:27 pm 
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Joined: Mon Jun 30, 2008 2:16 pm
Posts: 251
Location: Ansonia, CT
For those of you (like me) who are keeping your rear drum brakes on your old Z's, I thought I'd share this tidbit with you.

From my 46 years of owning and maintaining an early Z car, I always felt the Z brakes worked well but needed to be maintained on a regular basis, especially the rear brakes. I've replaced rear wheel cylinders and even rebuilt them over the years after spotting that dreadful fluid trip running down the inside wall of a rear tire. My brakes are fine now but I have noticed that the 70-72 rear wheel cylinder prices have shot up dramatically from Motorsport and they no longer seem to sell the rebuild kits for the cylinders. Replacement cylinders are now around $200 each :shock: .. Later models for 73-76 are only around $39.

I recently found that Rock Auto is stocking Centric cylinder rebuild kits. I ordered 4 of them for a mere $5.40 each. Wheel cylinders themselves normally don't where out. They may need to be cleaned and honed (you can buy a hone tool for less than $20). The kit includes the critical cylinder piston seal and a new cover seal. Easy Peesey! :D

Of course you should completely flush and bleed your brakes every 2-3 years to keep them working properly.

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John Kish
1971 240Z original owner


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PostPosted: Thu Dec 21, 2017 7:11 pm 
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Joined: Wed Apr 09, 2008 5:53 pm
Posts: 12473
Location: CT
Do you know if the rebuild kits are available from someone else? I could research that myself but I'm too laZy.....

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1970 240Z


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PostPosted: Fri Dec 22, 2017 9:29 am 
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Joined: Sat Feb 01, 2014 9:21 am
Posts: 626
Location: Somers CT
Surprisingly I have had great luck with NAPA to find kits like that and various seals and bearings.

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W.Karl Walton
Somers CT



75' - 280Z - HLS30203249 - #304 Gold Metallic (stockish)
96' - 300zx TT - JN1CZ24d3TX960293 - Black on Black (enhanced)


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PostPosted: Fri Dec 22, 2017 12:35 pm 
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Joined: Wed Apr 09, 2008 5:53 pm
Posts: 12473
Location: CT
Yeah, but you drive one of those fast & shiny new "modern" cars, Karl. There were like what, 40 billion of those made? I was wondering about the old CLASSIC Zs. 8)

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1970 240Z


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PostPosted: Fri Dec 22, 2017 3:22 pm 
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Joined: Sat Feb 01, 2014 9:21 am
Posts: 626
Location: Somers CT
Frank T wrote:
Yeah, but you drive one of those fast & shiny new "modern" cars, Karl. There were like what, 40 billion of those made? I was wondering about the old CLASSIC Zs. 8)

:P :P :P :P :shock:
I am speaking about finding parts for my 75 280 the one with same engine thats in your old decrepit multi million $$$ one ! :mrgreen:

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W.Karl Walton
Somers CT



75' - 280Z - HLS30203249 - #304 Gold Metallic (stockish)
96' - 300zx TT - JN1CZ24d3TX960293 - Black on Black (enhanced)


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PostPosted: Fri Dec 22, 2017 11:11 pm 
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Joined: Mon Jun 30, 2008 2:16 pm
Posts: 251
Location: Ansonia, CT
I've looked at the websites for NAPA, Autozone and Advance without any luck. Advance's site seems difficult to use as it comes up with wheel cylinders that I know don't fit my car and constantly discards the vehicle information I enter when I do a parts search. :roll:

The cylinder kits I received from Rock Auto look correct but I have yet to verify if the new seals fit an old wheel cylinder. I will do that soon and let you know.

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John Kish
1971 240Z original owner


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