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A One Inch Diameter Brake Master Cylinder for the S30 Z Cars


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#101 JoeK

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Posted 05 March 2016 - 11:41 PM

I'm working on this swap. New booster from a '78 280z. The pushrod appears to be too short. I the pic below, it is about right where I want it to be, about 12.5mm from the face of the aluminum spacer, but it is only threaded in 2 1/2 turns. I pulled the pushrod out of my old booster and it's the same length.

 

The pictures some people have posted in this thread that show the pushrod, they look different than both of mine. They seem to have 1/2" or more length in front of the nut. Suggestions?

 

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1971 240Z - LS1 swap in progress. Just need to: get wheels, drop the car from the rotiserrie, install the motor and trans, rebuild my dash, put in a new interior plus a few more odds and ends (about $10k in incidentals). Should be on the road before my 5 year old heads off to college.


#102 JoeK

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Posted 06 March 2016 - 12:35 AM

As opposed to this pic, where the pushrod looks different than mine. This pic is from the first post in this thread. 

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  • Attached File  11.jpg   48.12KB   2 downloads

Edited by JoeK, 06 March 2016 - 12:46 AM.

1971 240Z - LS1 swap in progress. Just need to: get wheels, drop the car from the rotiserrie, install the motor and trans, rebuild my dash, put in a new interior plus a few more odds and ends (about $10k in incidentals). Should be on the road before my 5 year old heads off to college.


#103 Nigel

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Posted 25 June 2016 - 12:24 PM

I started prepping my new Wilwood master cylinder for installation and discovered this...

 

13537748_10154168744276405_3151475508254

 

13537587_10154168744471405_6437625129170

 

The mangled cone fitting by itself wouldn't have been a big deal. I could have swapped in the fitting from my 280ZX M/C. But there's no way I'm trusting the cone fitting to seal in the bore of the M/C with those gouges!

 

I don't have time for this!!!  :mad:

 

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#104 Miles

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Posted 25 June 2016 - 01:15 PM

Nigel

 

Looks like bad machining by Wilwood.

 

Wilwood seems to lack quality control. I bought  two 1 inch  Wilwood MCs that leaked internally right out of the box. The third Wilwood MC I bought was ok and has been on the car for five years.

 

I recall another member saying that the Wilwood 1 inch MC he bought had a problem with damaged output ports/cones/fittings.


Edited by Miles, 25 June 2016 - 01:19 PM.

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#105 Nigel

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Posted 25 June 2016 - 01:22 PM

Nigel

 

Wilwood seems to lack quality control. I bought  two 1 inch  Wilwood MCs that leaked internally right out of the box. The third Wilwood MC I bought was ok and has been on the car for five years.

 

I recall another member saying that the Wilwood 1 inch MC he bought had a problem with damage output ports/cones/fittings.

 

Before I posted, I read through the previous posts and I did find mention of those issues. Very frustrating, particularly with our small sample size. With only a month to go until Z-Con, I really don't have time for this. I'll be livid if the replacement has issues too.

 

Nigel


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www.ontariozcar.com


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#106 OldAndyAndTheSea

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Posted 25 June 2016 - 01:37 PM

Nigel

 

Looks like bad machining by Wilwood.

 

Wilwood seems to lack quality control. I bought  two 1 inch  Wilwood MCs that leaked internally right out of the box. The third Wilwood MC I bought was ok and has been on the car for five years.

 

I recall another member saying that the Wilwood 1 inch MC he bought had a problem with damaged output ports/cones/fittings.

 My MC leaked out of the box too.

 

I'm on my second 1" master cylinder...I have yet to bleed it...I hope all checks out.


PM me for any composites related inquiries.


#107 Savage42

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Posted 05 April 2017 - 04:47 PM

Looks like mine is leaking, too. Crazy that so many have that problem.

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#108 Derek

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Posted 06 April 2017 - 02:49 AM

Looks like mine is leaking, too. Crazy that so many have that problem.

 

Did you discover the leak by bench bleeding? I just got my Wilwood master yesterday and now I'm having second thoughts.

 

Thanks

Derek


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#109 Savage42

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Posted 06 April 2017 - 10:47 AM

Unfortunately, I did not.  It took some driving and hammering the brakes to notice the small amount of fluid leaking from between the MC & booster.  I called Wilwood and am getting it sorted out with a new rebuild kit. 


Gary Savage - http://www.Savage42.com
 


#110 Derek

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Posted 07 April 2017 - 02:00 AM

Unfortunately, I did not.  It took some driving and hammering the brakes to notice the small amount of fluid leaking from between the MC & booster.  I called Wilwood and am getting it sorted out with a new rebuild kit. 

Thanks for the info. I guess I'll mount it up and hope for the best. 

 

I'm not sure "hope for the best" is a term that should be uttered in a brake forum:)

 

Derek


EDIS Mounting kits are BACK IN stock!!!
http://datsunworks.com/page3/page4/


#111 Savage42

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Posted 07 April 2017 - 04:42 PM

The function and feel of my brakes is fine, just done like having the fluid messing up the paint in my engine compartment. Anyway, it wasn't enough for me to even notice, aside from being wet under the MC.

Gary Savage - http://www.Savage42.com
 





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