Girling Part Number H-2715 Sleeve

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Mike Allfrey
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Girling Part Number H-2715 Sleeve

Post by Mike Allfrey »

I think I read somewhere that new aluminium sleeves, Part Number H-2715, for the full hydraulic master cylinder had been manufactured. If so does anyone know where they are available from?

If they are not available, I can get some made, but need the original (not worn) inside diameter before going ahead.

Regards to all,

Mike Allfrey.
E0 SA 42R; Rover 75
Keith Clements
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Re: Girling Part Number H-2715 Sleeve

Post by Keith Clements »

I got mine from JCCNZ, JCS may be able to supply and may use them in the reconditioned units they offer.
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Mike Allfrey
Posts: 491
Joined: Thu Apr 06, 2006 10:14 am
Your interest in the forum: It is a good vehicle for getting Jowett information to others.
Given Name: Michael
Location: Melbourne, AUSTRALIA.

Re: Girling Part Number H-2715 Sleeve

Post by Mike Allfrey »

Hi Folks,

I have at last resolved my master cylinder concerns. I now have a genuine Javelin/Jupiter unit and the new plunger support sleeve from NZ is a good fit. The master cylinder that was in E0 SA 42R, fitted the Good Lord only knows when, was not a genuine unit - externally the same, but internal dimensions are different, one by 0.083-in. which is well beyond manufacturing tolerances. I am now wondering what vehicle the master cylinder came from. Thirty years ago, I fitted a new Javelin plunger and seal kit. There have been several seal kits fitted reasonably regularly, as have been the brake hoses.

Now I understand why my Jupiter had significantly longer brake pedal travel than that in my Javelin before any thing started to happen. In addition, bleeding the brakes was sometimes a bit difficult. Some of that aspect can be put down to wear at the inner diameter of the plunger support sleeve, I have three used sleeves here with 0.007, 0.008 and 0.010-in. of wear - probably too much for the recuperating seal to cope with.

Will advise how it works out. Meanwhile my Technical Notes on the master cylinder overhaul will be released soon.

Mike A.
E0 SA 42R; Rover 75
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