Flywheel bushes - sizes.

[Abarthnorway - Remi L]

Hi Guy!


During my current engine build I discovered some differences between flywheels from the 131 and 130TC Abarth:

130TC web.jpg (100.3 KiB) Viewed 655 times

Here is a std 130 TC flywheel with a bush in the centre.

131 non fit web.jpg (86.71 KiB) Viewed 655 times

Here is the 131 flywheel I am planning to use - the bush is too small to fit into the central hole...
I never thought of measuring this as I thought it would be "plug and play" - not so.


Is there any "system to it" - regarding differences between the flywheels in the Fiat Lancia family?


Best regards

Remi Lovhoiden

[Guy Croft]

we have a sleeve for that Remi

G

[Abarthnorway - Remi L]

Thank You!

Remi

[tmvolumex]

Maybe I am mistaken, but I remember something about the transverse (Beta FWD and Montecarlo / Scorpion) twin cam installations using a solid metal bushing while the RWD installations require a ball bearing. A ball bearing would work in the transverse applications but is not a requirement? It never really made sense to me, maybe Guy could clear this up.
Tom

[tmvolumex]

It may be that the input shaft on the FWD transaxle applications does not actually go into the bushing / bearing as it is short. The bushing is only used to center the flywheel?
Tom

[Guy Croft]

that is correct Tom

G