Astra master cylinder ?

[Jonlem]

I spoke to a guy at a trackday last weekend who was running v6 calipers and he said to get over some of the pedal travel issues he fitted a astra master cylinder.

Does anyone know the one to use or even better does anyone have one thay fancy selling me as I cant find the time to get to the scrapyard.

Cheers :thumb:

[craig green]

The M/C you need has a 22mm bore cyl. However, good luck finding one. It is from the earliest of the early 16v Astra GTE 16v's. Ive had an F & G plate valver & both had the M/C with the diagonal mounting holes, ie when fitted to the Nova servo the reservoir will tilt over to one side.
The holes will be horizontal basically.

Happy hunting!

[Jonlem]

New one it is then lol

[Jonlem]

Well I took the risk and ordered a new one praying that it had the mounting holes in the correct place........... and it did ! :)

But it does come bare so my next question would be what regulators should I use ? Astra ones or the ones off my nova M/C.

I haven't tried yet but I'm guessing the nova resevoir wont fit either so I'll need a Astra one.

If anyone wants the part number I'll dig it out so people have it for future reference.

[Rich]

Yeh that would be good, how much did it cost you?

[Jonlem]

I think it was ?45 mate,

Will check part number in a min for you

[R1CH]

Or you can use the Astra servo & master cylinder and just make up a new mount between the servo & bulkhead, mod the clevis & pin on the end of the servo rod to fit the Nova brake pedal bar & jobs a good un.
I fitted a Calibra Turbo Servo & MC on mine.

http://i6.photobucket.com/albums/y221/ricmetcalf/Nova%20build%20pics/DSC00350.jpg
http://i6.photobucket.com/albums/y221/ricmetcalf/Nova%20build%20pics/DSC00351.jpg

Rich

[Jonlem]

Good work Rich, what engine you running though as that must be tight !

[R1CH]

LET, loads of room !!!
Only reason i done it was that i had the servo & mc in the garage and thought i may as well use it, got a mate to knock the mount up so it cost nowt !! :thumb:

Rich

[Jonlem]

Nice, besides it looking good have you noticed any less pedal travel then ?

[R1CH]

Using Cailbra calipers front & rear as well, pedal travel seems normal (???) This is the only set up i've had on the car, so can't compare to what it used to be.

Rich

[Jonlem]

16v or turbo ?

I once had v6 on mine with normal servo/MC and the pedal travel was awful

I've been told this just about sorts it out, I hope lol

[R1CH]

Turbo calipers, servo & mc
Aye a bigger mc should make it feel a bit better.

Rich

[alistairolsen]

did anyone ever find the part number for the correct cylinder?

[Jonlem]

I should have it somewhere mate.

It is however a early Astra 16v but check in the book at the local factors as the 2 boltholes must be inline like a nova, some are at angles to each other which obviously wont work.