Mick,
I have a 1971 with Essex V6 and it has the Girling large reservoir master cylinder but the number reads CC4A . It's a 3/4" bore.
www.merlinmotorsport.co.uk has what you're looking for I think. Try this link:
http://www.merlinmotorsport.co.uk/advanced_search_result.php?keywords=gmc-12-il
Or search on their site for: GMC-12-IL
Don
--- In MarcosManiacs@yahoogroups.com, ANDREA CATTON wrote:
>
> Hello there,
>
> I have a 1969 2ltr V4 Marcos.
> I am trying to find and purchase a replacement Brake Master Cylinder unit.
>
> The one on the car at present is a GIRLING unit with the number 64675575 printed both sides near the screw cap, directly below this is a large symbol H with a small A printed underneath, below this is the word Girling then 875 below that.
>
> It's a 3/4" bore,90deg Large Bowl
> I have contacted a couple of vendors and given them the info above.
> Each time they cannot recognise the serial numbers as a GIRLING part.
>
> Does anybody know if this is the correct unit for the car or which make of car was the donor for this.
> I know most of the braking system was triumph.
> Is this a triumph part?
>
> On another note:
>; I don't know if i hold the record for the longest rebuild.
> I started stripping the car down in Aug 1993 thinking it would be back on the road in 6months.
> 14 years later and it's still not finished.
> I am a member of CLUB MARCOS INTERNATIONAL here in the UK.
> In the last mag i received it mentioned MARCOS 50th Anniversary was coming up in 2009 so i am trying to finnish it for then.
>
> Thanks. Mick
>