Daniel5691

Hello !
I'm all set to install clutch master, clutch slave, brake booster and brake master, new brake pressure regulators, and all hard lines.

The engine's out ( I have decided to own an engine-less 928 at this point lol)
so access really isn't much of an issue...

I just wonder if there are any specific recommendations regarding assembly of "the whole enchilada" .

Thanks

hlee96

I'm watching bc I'm at the same stage!
Thanks for asking this question.
Hoi

StratfordShark

If you're going to effort of replacing all brake hydraulics, is it worth refurbing calipers at same time? That would involve replacing all the piston seals and dust boots. Was also going to say bench bleed the master, but with all new and empty lines maybe less point. How about new flexible hoses? Talking of which, smear of antiseize at hard/flexible unions to make future disassembly easy.

jheis

Be careful when threading the pressure switches into the underside of the M/C. If you hear a little "dink" and it feels like you've stripped the threads, you've just bought a new master cylinder.

Probably safer to install the pressure switches onto the M/C and then installing the M/C. The M/C is cast iron which is rather brittle. If you over tighten, the threaded mounting boss will crack right off. BTDT.

James

Hymodyne

I have had success with speed bleeders on the brakes and clutch.

James

Mrmerlin

make sure to verify that the pistons of both masters move the same amount,
if not then the new parts have an issue where the piston will not travel as far as the original design.
This will limit clutch throw.
So modifying the tip of the new piston by removing 4.5MM and removing some of the spring so it wont go into coil bind must be performed.
I recommend to use the Greg Brown flexible clutch line to the slave,
this removes the hard line that goes over the starter and makes bleeding easy.
I also suggest to install new SS flex lines for the brakes.
Use ATE super gold fluid

hlee96

Stan, I can't seem to find the thread about modifying the new clutch master piston in order for it to work on the OB's dual disk clutches.

Can you help and attach a link?

thanks so much-hoi

Daniel5691

Hoi, this may be the thread to which you are referring?

Great info in here on clutch master differences/ solutions....
https://rennlist.com/forums/928-foru...on-spring.html

hlee96

Thanks so much Dan! You're the man.