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RDuff

Master cylinder rebuild problem

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I have a 240Z built 2/71 which means the hard to find old style MC with the front brake reservoir is toward the front of the Z. I decided to rebuild rather than buy the  9/71 and later version and have to reroute the hard lines. After bleeding the MC,when I bleed the brakes fluid moves from the front reservoir goes to the rear reservoir which then overflows. As far as I ca n tell I replaced all the rubber collars facing the correct direction in the MC. Any idea where I went wrong,other than not buying a new MC?

 

Thanks for any help.

 

By the way I am not a newbie, forgot my password, changed email provider, cannot use old user id.

 

duff

 

 

 

 

Edited by RDuff
Not a new user

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Where did you get your rebuild kit from?  Only reason I ask is because I had a similar experience recently with a rebuild kit from ZCarDepot.  The seals provided for the main shaft would not seal properly and I was never able to get the rebuilt MC working properly.  Ended up buying a reman unit from Cardone for about the same price as the seal rebuild kit cost.

 

This is not intended to slam ZCarDepot; because it appears that they are just a distributor for the kits (which are produced in the UK, IIRC).  

 

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Cardone used to offer a MC rebuilding service through O'reilleys Auto Parts. You take the MC (has to be rebuildable) to O'reilleys and they send it to Cardone for the rebuild. Seem to recall that it took about 2 - 3 weeks.

 

 

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