Home › Forum › Ask A Member › 1954 3.6HP Scott Atwater – Lower Unit Question › Re: 1954 3.6HP Scott Atwater – Lower Unit Question
October 31, 2015 at 7:35 pm
#26328
The cavity is not used in non-shift motors like yours. In the 5, 7.5 and 10 hp motors the shift fork slides up and down inside it.
You can leave the gasket solid but I would cut a small hole in it so pressure can be equalized on the two sides of the gasket.
The gasket thickness determines the gear lash front to rear – use medium thickness gasket material about 1/32" or fit by trial.