4 replies to this topic

[brivinci]

Usually better and keeping track of things but here we are. Brake master was getting weak so replacing while doing the latest rebuild. I had everything out, including subframe. Anyway.

Can anyone confirm which lines go where between the master and the proportion valve that is bolted to the firewall? I am running a set of goodridge braided SS flexible lines. One is longer then the other. The master has the forward and rearward outlets. Thanks!!

[Johnmar]

Your brake servo is part number GMC90376. If you look that up at minispares you can look up the lines and their connecting locations in the drawing  (take good note on the bolt hole that secures the Brake Limiter Valve to the firewall, so you can determine its oriëntation in the drawing.

 

http://www.minispare...0614-2013-2.jpg

 

Please let us know if this is what you are looking for.

[brivinci]

Clearly too many late nights wrenching...I was using that image but looking at it wrong. Thank you for clarifying that bolt position reference. All makes sense now. Cheers!

[Johnmar]

Just a note (that I hope you don't need as you hopefully knew this already when you bought your braided lines):
All the brake unions on the servo and the brake limiter valve are metric and NOT SAE unf..

So in an SPI you can expect 6 metric unions (4 on the pipes between brake servo nad brake limiter valve, an two from the brake limter valve to the front snd rear brakelines.). All other brake and clutch line unions are SAE unf.

An SAE unf fitting will seem to fit where a metric is neede, but will not work and when you tighten it more (to stop fluids comming out) you will bodge the thread. So be warned to use the correct union..

Edited by Johnmar, 27 October 2020 - 04:32 PM.

[brivinci]

Yes, thanks for the clarification. I didn't know that...but I currently only work on 2 Minis these days, and both are SPi's.