Mystery Clutch

[DMT 1]

I've taken the engine out of my Mk1 GT to cure an oil leak and to change the clutch in case of contamination. I found a diaphragm clutch, the operating lever sits on a bracket on the bell housing,, the C shaped link to the release bearing isn't there and the slave cylinder is about twice the size. That cylinder has a code G7F on it which I think makes it a Mk2 part, it must have a larger hole in the bell housing so I'm stuck with that size of cylinder. The clutch was jerky before, there is no oil on the friction plate but there are odd wear marks on the friction and driven plate so I was right to be suspicious of them, they do need replacing.

So, am I looking at a Mk2 setup?

The actual friction plate is the standard 7 1/2" size. I have replacements for the standard GT items, would I be better to get a Mk2 driven plate or try the finger type? I don't want to do the job twice.

[mk2sav 44]

It does sound like a Mk2 set up and therefore , if you are keeping the current bellhousing ( will be marked either 3014 or 3034 for mk2 part) , I think you will need to stick to the parts that are fitted or same replacements as its not possible to mix and match  tho the friction plate is the same .

[consul315 180]

does the cylinder look like this?

 

 

[consul315 180]

and teh clutch like this?

 

[DMT 1]

Hi Guys, thanks for all the great info.

My clutch parts look the same as the pictures the only difference being that I have yellow springs on the friction plate with the same 20 splines. The only ID I can find is the number 47238 on the friction plate which ties in with various old MGs and Triumphs. I have a replacement plate part No. CL1 from the club it has no markings on it..

I can't confirm the bell housing number but it looks like the photo, I note that this has internal ribs that are not present on the ones illustrated in the parts list book or manuals, so the larger standard driven plate would probably foul. I found a picture of a Mk1 Lotus housing which has ribs and a diaphragm clutch but the slave cylinder mounting is different. 

The slave cylinder looks the same as in the supplied photo, with the code G7F stamped on the body, it is very much the big brother of the Mk1 cylinder I have bought. The plate between the back of the engine and the gearbox is as per the photo which is different from what I expected on a Mk1, might this be a MK2 part as well?

[jannickz 0]

Ensure the replacement finger-type clutch kit you have is specifically compatible with your Mk1 GT gearbox and bell housing.

[DMT 1]

A very late conclusion to this thread; It turns out that what I have is a bit of a bonus, it's an actual Corsair 2000E box, bell housing etc. so a better set of ratios