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flywheel difference
http://www.international2cvfriends.com/forum/viewtopic.php?f=7&t=4200
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Author:  ayjay [ September 4th, 2012, 7:05 pm ]
Post subject:  flywheel difference

is there any difference between drum brake and disc brake flywheels?
we stripped a 602 engine today that had a drum brake g/box,
he is going to fit a disc brake gearbox
my brother was told by someone that the flywheels differ so he bought a f/wheel from a disc brake car just incase
well upon inspection both f/wheels look identical :?:

Author:  Rhythm Thief [ September 4th, 2012, 7:13 pm ]
Post subject:  Re: flywheel difference

Speaking generally, earlier flywheels are heavier, with the clutch held in place by six evenly spaced M6 set screws, instead of the six paired M7 set screws on later cars. However, a flywheel change is quite a popular mod - I've just put an earlier heavy flywheel on a late disc brake engine - and it might be that that's what's happened here. You should be able to fit a heavy flywheel to a disc brake gearbox, as long as you remember to change the clutch and the release bearing.

Author:  Sean [ September 4th, 2012, 7:19 pm ]
Post subject:  Re: flywheel difference

search - theres plenty on this, 2 flywheels heavy and not quite so heavy and their corresponding clutch mechanisims.
heavy flywheel fits on a long spline disk gearbox no issues but a light flywheel clutch is less than ideal on a drumbrake short splined gearbox

thats the easy bit.
you will also need to make sure ALL of the components in the brake system match and dont be fooled by tales of mixing and matching brake fluids, disks need LHM with LHM master cylinder ( green) and you will have to change all the pipe seals and the rear wheel cylinders too.

YOU CAN'T USE SILICONE FLUID (Dot5)
YOU CAN'T USE DOT3 OR 4 (polyetheline glycol) and flushing with mineral spirits wont change that fact.

trust me ive still got skinned knuckles and sleep deprivation to prove it.

Author:  Rhythm Thief [ September 4th, 2012, 7:23 pm ]
Post subject:  Re: flywheel difference

It's a lot more of a ballache than merely setting up the front drums properly ... drums (in my experience) are no worse than discs when set up correctly. They just need a bit more attention.

Author:  ken [ September 4th, 2012, 7:32 pm ]
Post subject:  Re: flywheel difference

ayjay,
dig out that ruler or tape measure... ;)

http://www.ecas2cvparts.co.uk/clutch-ma ... -1392.html


ken


ayjay wrote:
is there any difference between drum brake and disc brake flywheels?
we stripped a 602 engine today that had a drum brake g/box,
he is going to fit a disc brake gearbox
my brother was told by someone that the flywheels differ so he bought a f/wheel from a disc brake car just incase
well upon inspection both f/wheels look identical :?:

Author:  ayjay [ September 4th, 2012, 10:43 pm ]
Post subject:  Re: flywheel difference

thanks fellas! i,ll tell brother and try to c/p this thread (he can,t seem to access 2cv international for some strange reason!)----------------------------------------------
thanks fellas ive printed the info onto a4 paper i,ll give it to him tomorrow
andy :D

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