1985 Mercruiser 140 2 piece rear main seal, "flywheel"

[buckz6319]

My flywheel ring gear teeth are bad.I think maybe from age. I would like to know if I can purchase a ring gear, and if so how would I measure for It?

I don't want to purchase a new flywheel, because of my rebuild budget( I got the engine 90% completed), and not sure 'bout purchasing a used flywheel.

any suggestions would be appreciated.

thanks!

 

[Bt Doctur]

Simply by counting the teeth and going to your local auto parts store

 

[bondo]

Ayuh,..... You could have the 153 tooth 12" flywheel ring gear, or the 168 tooth 14" flywheel ring gear,....

Either can be found at any auto parts store,....

Knock the old one off, put the new one in yer oven, 'n heat it up,....
Take it outa the oven, 'n drop it onto the cleaned flywheel,...
It'll literally Fall into place,....

 

[buckz6319]

thanks! I believe it's the 153 tooth 12". I will get those measurements today, and head to auto parts store