Flywheel

Post by **bmcecosse** » Thu Mar 03, 2005 8:18 pm

Will a 1098 flywheel fit a 1275 crank ?

Post by **les** » Thu Mar 03, 2005 10:00 pm

You can get an exchange 1098 flywheel thats been modified, or alter your own, then it can be used.

Post by **Cam** » Thu Mar 03, 2005 10:13 pm

1275 crank has 6 bolt holes and the 1098 has 4.

Here is a piccy of my modified 1098 flywheel:
http://potteries.mmoc.org.uk/Members_Ca ... 402_04.jpg

You can see how it's been modified from 4 to 6 holes quite clearly in that picture.

Post by **les** » Thu Mar 03, 2005 10:24 pm

If I remember the centre has some form of bush for this mod Yes/no?

Post by **Cam** » Thu Mar 03, 2005 10:36 pm

Yes, and here is a piccy of the centre bush in situ:
http://potteries.mmoc.org.uk/Members_Ca ... 411_01.JPG

The phosphor-bronze bush comes with the steel housing and presses into the centre of the flywheel.

Post by **bigginger** » Thu Mar 03, 2005 11:17 pm

Out of complete ignorance, why did you put a 1098 f/wheel on a 1275? Weight or something?
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Post by **rayofleamington** » Fri Mar 04, 2005 9:46 am

Out of complete ignorance, why did you put a 1098 f/wheel on a 1275? Weight or something?

You choose the flywheel depending on what clutch you are going to fit.

Post by **forbesg** » Fri Mar 04, 2005 10:46 am

Cam wrote: The phosphor-bronze bush comes with the steel housing and presses into the centre of the flywheel.

Dumb question time. What's the purpose of the phosy-bronze bush?

Post by **Cam** » Fri Mar 04, 2005 10:57 am

It holds the gearbox input shaft centred in the middle of the flywheel.

Post by **Kevin** » Fri Mar 04, 2005 1:10 pm

In my case i used the 1098cc flywheel instead of the midget one as its smaller and the clutch can be very snatchy in a Moggie so a larger Minor clutch is preferable, its also worthwile replacing the bush as they are very often worn and should be replaced whenever a clutch is replaced if there is any play as a worn one will put extra forces on the gearbox and the bushes are only a couple of quid.

Cam I assume looking at your picture you used locktight on the flywheel bolts instead of a tab washer the same as I did.

Post by **Cam** » Fri Mar 04, 2005 1:17 pm

Kevin, I used threadlock instead of the tabwashers.

Post by **bmcecosse** » Fri Mar 04, 2005 7:30 pm

In my case it's because I have a 1098 flywheel and I don't have a 1275 one ! I thought they were 6 bolt - thanks for the answers !