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ami8i

Hello,
I'm afraid my clutch will die soon. It's a V06/630 Visa engine --> prae 1982 3 finger clutch expected.

Which brand/model/type of 2CV/Visa clutch do you recomend to transmit torque in a torque (and slightly power) tuned engine for a longer time?

Thanks
»Horst
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ami8i · Posted: Mon May 11, 2009 1:34 pm Post subject:

Hello,
nor reply?
Which clutch ist the best to withstand advanced torque on older Visa engines?
I heard about a diaphragma clutch which suits also to the older engines?
http://www.mehari-2cv-spare.co.uk/article.do?refArticle=1013300
Does anyone know any details? Quality?

What do the racing guys use?

Please help urgent - my clutch is dying!

Thanks in advance!

>>Horst
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Bart · Posted: Mon May 11, 2009 4:44 pm Post subject:

Hi Horst,
I don't know which make is the best/strongest. I'm not sure but think I have heard that 3 finger type is slightly stonger than a diafragma type.

Racers just use normal diafragma type clutches, their flighwheel are lighter and probably easier to lighten. Moreover they mostly deal with power rather then torque and just need a clutch which last for 24 hours... At the end of the day I never heard of racers having problems with the clutch...

I'd say, just get a decent make diagframa clutch and it will last the next 50 to 100 thousand if you are not driving like mad.

Good luck, Bart
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JoZeF · Grave Digger Joined: 25 May 2007 Posts: 1734

visa engine means compatible with GS type flywheel or am I wrong ?

they have bigger diameter diaphragm clutch (so does AMI Super) maybe there's an idea there ?
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ami8i · Posted: Mon Jun 08, 2009 10:58 am Post subject:

Hello Bart and JoZeF,
thanks for your replies!

The clutch seem to be 'recovered' (don't ask me why).
If I hit the gas pedal just at higher revs the clutch can withstand, maybe even at lower revs and WOT but I have avoided this during the last weeks.

I don't drive mad so I decide (90%) to get a old style hybrid diaphragma clutch - which I can purchase locally too.

@GS flywheel (10%):
What I could find out: the GS flywheel screw pattern should be the same, but it reaches more into 2CV bell housing than 2CV. This would be no problem since I use Visa/LNA bell housing.
But I like the 10deg (+45deg) BTDC mark of the OEM Visa inductive sensor pickups. Hmmm I could make simple marks on the flywheel...

What's about the starter?
GS starter is fixed on the opposite site, will this work? I'd like to keep a common 2CV starter.

»Horst
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Joolz · Posted: Sat Jun 13, 2009 12:10 am Post subject:

Hi Horst, the GS flywheel will fit the Visa engine and the clutch is bigger but you say you have Visa/LNA bell housing, if you also have a Visa/LNA 'gearbox input shaft' it has different splines to a GS 'gearbox input shaft' so will not work with a GS clutch I think.
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ami8i · Posted: Sun Jun 28, 2009 1:23 am Post subject:

Hello Joolz,
thank you very much for the hint with the input shaft!
I will not look (and pay) for a rare Ami Super bell housing so I can give up the GS clutch + flywheel idea...

Maybe I can fit a short GSA 5speed box into the 2 cylinder frame (and Ami8 body) at the same time when I replace the clutch.
It was damned narrow to fit the LN gear box so I don't know how to fix the 5 speed box. Even when I shorten the back cap of the box as much as possible.
But that's another story...

First I have to find out the electric problem to get the Ami finished until world meeting...

»Horst
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JuanNavarro · Posted: Mon Jun 29, 2009 9:11 am Post subject:

J.Cats have a guide on adapt the GS gearbox to a Type A engine, and some advices on how to have success (gear relations that works):

http://www.cats-citroen.net/citroen_atypes/tuning_gboxconversion.html
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JoZeF · Grave Digger Joined: 25 May 2007 Posts: 1734

maybe a 4spd GS box would be just as nice and half the trouble ?
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ami8i · Posted: Mon Jul 06, 2009 12:25 am Post subject:

Hello JuanNavarro,
thanks for the link. That's exactly what I've done (LN gear box + LNA/Visa bellhousing + GSA brakes). But my final goal would be to use a short GSA 5 speed box.

Hello JozeF,
The problem is the 1st gear under difficult conditions (heavy load, slightly offroad terrain...). Since I use a very long gear box (AX DIesel) in BX 14 Break I know the feeling of long gears. Under normal circumstances this 'strong' engine is able to pull without troubles.
The Visa isn't as strong as the BX engine :) so I'd prefer to have a 'short' 1st gear.

I've got a GSA 4 speed box to test the long gear ratio, but this would be just a test project.
The journey to worl meeting would be nice test for smooth cruising, but I have not enough time to do this before. Ami8 (+ my EFI mods) require/s more time than 2CV front.

»Horst
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