Board logo

0.7 master cylinder
Slimy38 - 30/12/17 at 10:08 PM

Hi, I want to get a new clutch master cylinder for my Locost build (MX5 donor), the only information I have is that it's a 0.7" bore with an integral reservoir. I can see one at Rally Designs and at car builder solutions, but I can also see a TR6 one;

https://www.ebay.co.uk/itm/TRIUMPH-TR6-CLUTCH-MASTER-CYLINDER-LEFT-HAND-DRIVE-0-70-BORE-154933Z/202033800742?hash=item2f0a272626:g:Xv0AAOSwridaKpsF />
Will this work? It's about £15 cheaper than the equivalent from RD or CBS.

(I should clarify that this is a new build, I'm not replacing an existing one.)

And does anyone have a reputable supplier for MX5 brake master cylinder repair kits?


cliftyhanger - 30/12/17 at 10:17 PM

That TR6 type looks to be a copy of the Girling one. So if CBS etc supply Girling style, no reason at all it won't work. May be worth checking the thread on the hydraulic pipe, I know most were 3/8, but O know there are some oddballs about. Other potential issue is pushrod length, the TR6 one is not adjustable, and the others may be?


Slimy38 - 30/12/17 at 10:25 PM

quote:
Originally posted by cliftyhanger
That TR6 type looks to be a copy of the Girling one. So if CBS etc supply Girling style, no reason at all it won't work. May be worth checking the thread on the hydraulic pipe, I know most were 3/8, but O know there are some oddballs about. Other potential issue is pushrod length, the TR6 one is not adjustable, and the others may be?


Yeah, I noticed the pushrod isn't adjustable. I think I'll just pay the extra for the proper one, and make the task as easy as it should be.


Mike Wood - 30/12/17 at 10:29 PM

Girling master cylinders with integral reservoirs or for separate remote reservoirs available from: https://www.merlinmotorsport.co.uk/s/brake-clutch-parts/master-slave-cylinders

(Remote reservoirs and tubing and fittings to connect them to master cylinders, and caps with senders for fluid level monitoring also available from Merlin Motorsport: https://www.merlinmotorsport.co.uk/s/brake-clutch-parts/brake-fluid-reservoirs)

Best wishes
Mike

[Edited on 30/12/17 by Mike Wood]

[Edited on 30/12/17 by Mike Wood]


cliftyhanger - 30/12/17 at 10:41 PM

3/4 is 0.75

And the difference between a 0.70 and 0.75 is far more than it sounds! (14%)

0.75 is a landrover size, they are very cheap.