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Michael Oritt
03-29-2008, 06:59 PM
I need to rebuild the clutch slave cylinder on the Elva. Though the transmission is MGA the cylinder is not--it is 7/8" bore as opposed to the MGA 1".

Attached find a photo showing the cylinder and parts.

The cylinder is 7/8" bore and is stamped "38UN".
There are no numbers on the small lip seal that I can read.
The outer boot says (in a circular pattern around the hole for the rod) "Girling/OW15-456/AR61/363616" (The "1's" may be "I's" as there are no seriphs.)

Now please look at the following site in the Moss Sprite catalogue: https://www.mossmotors.com/Shop/ViewProducts.aspx?PlateIndexID=36484

Referencing the illustration, part number 35 is a 7/8" cylinder (repair kit number 36 goes to it) and looks similar to mine except for the bleeder configuration, but the original equipment cylinder is described as a Lockheed part.

Do those numbers make any sense to anyone and are Lockheed and Girling kits generally interchangeable?

Any help will be appreciated.

Michael Oritt
03-30-2008, 06:48 AM
Call off the hounds.

I found the cylinder on the Truchoice website described as part #GIR70-487U (for Universal). And Pegasus sells a rebuild kit for the cylinder (left, right and universal orientations) under part number 3521-.87.

WhatsThatNoise
03-31-2008, 06:02 AM
Very interesting...

My Courier's clutch must be perfectly adjusted to work.
It has the standard MGA (And it's kind of a pain)

The 7/8" bore would certainly lesson pedal travel and make life easier.

You wouldn't happen to know what the clutch master dia. is?

Michael Oritt
03-31-2008, 08:57 PM
3/4"