GOOD NEWS. . . . The PICTURE UPLOAD FUNCTION IS WORKING !!! The tech folks at the parent company have been able to remedy the issue. You can upload pictures once again. Thank you for your patience.
I have a 71 Evinrude, 60hp, Model 60173E which has a 'cylinder plug'(Part #307544) located on top of the cylinder next to the thermostat housing. It is a threaded bolt with a slotted head. What purpose does it serve?
My guess it's just a plug to cover a hole made during machining of the block , drilling a water passage ?<br /><br />If it's not leaking just leave it i place .
Don't know what that plug on my 70 115 was there for... but it isn't there anymore.. I replaced it with a 1/8 barbed fitting and some tubing and made me a pisser. Didn't like not having one. Works great.