McLeod twin plate conundrum?

[phazed]

I have just set up the twin plate clutch on the flywheel.

Taking measurements from the face of the flywheel to the top of the clutch fingers is 57mm

Taking the same measurement from the flywheel to my old single plate McLeod 10.5" clutch cover fingers is 72mm.

This makes the old single plate clutch taller then the twin plate assembly?

Given the measurements, I don't need to reduce the bearing carrier by the quoted 10 mm if anything it should be 15 mm longer.!

Given that these are tight measurements and a little play needs to be allowed, what to do?

When the clutch bearing assembly is pulled right back in the bell housing there is a distance of approximately 14mm inbetween the front face of the thrust bearing and the top of the twin plate clutch fingers.

This is approximately the distance of the extra thickness of the single plate clutch housing. So I am assuming that there was no play in between the thrust bearing and single plate clutch release fingers.

This makes sense as the single plate clutch action was at the top of the clutch travel.



What to do?

Leave it and try as it is with the possibility of having play in the clutch pedal before it takes up the clutch.

Think of a method of packing the release bearing forwards by approximately 10 mm, The opposite of what was suggested.?

Answers on a postcard, pleeeeeeeease as I am ready to drop the engine in.

Doncha just hate these non-standard problems.

[LongBaz]

Hi Peter. You could try putting 10mm worth of washers where the slave sits on the bell housing.

[Boosted LS1]

There are different bearing carriers available. It's a long time since I did this but I probably used a range rover bearing carrier. I certainly used a range rover flywheel in order to allow the biggest diameter clutch I could use. I was using an LT77 gearbox.

[Pupp]

The cover is not intended to be used with a release plate is it (sort of top-hat spacer between the bearing nose and the fingers)?

[Discopotatoes]

phazed said:

I have just set up the twin plate clutch on the flywheel.

Taking measurements from the face of the flywheel to the top of the clutch fingers is 57mm

Taking the same measurement from the flywheel to my old single plate McLeod 10.5" clutch cover fingers is 72mm.

This makes the old single plate clutch taller then the twin plate assembly?

Given the measurements, I don't need to reduce the bearing carrier by the quoted 10 mm if anything it should be 15 mm longer.!

Given that these are tight measurements and a little play needs to be allowed, what to do?

When the clutch bearing assembly is pulled right back in the bell housing there is a distance of approximately 14mm inbetween the front face of the thrust bearing and the top of the twin plate clutch fingers.

This is approximately the distance of the extra thickness of the single plate clutch housing. So I am assuming that there was no play in between the thrust bearing and single plate clutch release fingers.

This makes sense as the single plate clutch action was at the top of the clutch travel.



What to do?

Leave it and try as it is with the possibility of having play in the clutch pedal before it takes up the clutch.

Think of a method of packing the release bearing forwards by approximately 10 mm, The opposite of what was suggested.?

Answers on a postcard, pleeeeeeeease as I am ready to drop the engine in.

Doncha just hate these non-standard problems.

pictures?

[phazed]

Pupp said:

The cover is not intended to be used with a release plate is it (sort of top-hat spacer between the bearing nose and the fingers)?

I am not sure what you mean?

[phazed]

The long and short of it is that the new twin plate cover is 14mm less in height than the single plate, strangely enough!

[Discopotatoes]

phazed said:

The long and short of it is that the new twin plate cover is 14mm less in height than the single plate, strangely enough!

shame I'm not at home till Tuesday i have the clutch release bearing sitting on the side i could measure it for you

[Boosted LS1]

phazed said:

I am not sure what you mean?

I understand what he means but I never used any spacers. My clutch had 3 fingers or levvers as Red Roberts used to call them lol.

[Discopotatoes]

phazed said:

Pupp said:

The cover is not intended to be used with a release plate is it (sort of top-hat spacer between the bearing nose and the fingers)?

I am not sure what you mean?

There's no spacer, Bearing/pressure fingers/friction plate/floater disk/friction plate/flywheel.
Point to note the friction plates must face the correct way round as the centre splines on the flywheel friction plate is domed

[phazed]

All sorted and round the right way.

It just seems that the clutch release spacer and bearing or not in the correct place as a single plate clutch is taller than the twin plate.

[Discopotatoes]

phazed said:

All sorted and round the right way.

It just seems that the clutch release spacer and bearing or not in the correct place as a single plate clutch is taller than the twin plate.

just had a thought my slave cylinder had washers to space it which would suggest mine needed the bearing pulling back,to stop it chattering.
maybe yours is fine and like brake cylinders will settle just off the fingers when the clutch is released?
i seem to remember my release bearing did need machining. but its all in bits so difficult to know now.

Edited by Discopotatoes on Monday 8th August 00:07

Edited by Discopotatoes on Monday 8th August 00:18

Edited by Discopotatoes on Monday 8th August 00:22

[ClassiChimi]

I'm not sure if anyone else is watching this with great interest,
Has anyone got some pics or a link to another thread about this,
Better still Peter a few pics of the clutch on your motor etc as you go,
If it handles your engines power then I'm sure it will be a valuable mod for any of us.
Is the clutch hugely expensive?

Goodluck, fortune favours the brave

[LongBaz]

[Engineer1949]

one thing to consider is you do need some room on the release bearing carrier to allow it to slowly move away from the flywheel as the clutch wears and the fingers move rearward


john

[phazed]

You can see her on the fingers on the single plate clutch housing stand out more then the ones on the twin plate clutch housing.

[phazed]

Discopotatoes said:

phazed said:

The long and short of it is that the new twin plate cover is 14mm less in height than the single plate, strangely enough!

shame I'm not at home till Tuesday i have the clutch release bearing sitting on the side i could measure it for you

Interesting to know how you modded yours?

I am wondering if my McLeod single plate clutch pressure plate is taller than a standard clutch?

[phazed]

LongBaz said:

Hi Peter. You could try putting 10mm worth of washers where the slave sits on the bell housing.

That would do the opposite Barrie.

[phazed]

Discopotatoes said:

There's no spacer, Bearing/pressure fingers/friction plate/floater disk/friction plate/flywheel.
Point to note the friction plates must face the correct way round as the centre splines on the flywheel friction plate is domed

All checked and correct Gary.

[ChimpOnGas]

ClassiChimi said:

I'm not sure if anyone else is watching this with great interest,
Has anyone got some pics or a link to another thread about this,
Better still Peter a few pics of the clutch on your motor etc as you go,
If it handles your engines power then I'm sure it will be a valuable mod for any of us.
Is the clutch hugely expensive?

Goodluck, fortune favours the brave

I'll second that, I'm sure Peter will find his way through all the details to make this modification work and share the knowledge learnt with the community.

A definitive list of what's needed to fit this ultimate clutch solution to our cars will be of great benefit to every Chimaera & Griffith owner.

Wishing Peter all the best with this one, and thanks from us all for sharing what you discover along the way