Piston/Rings; Pics are better than words. * Evinrude 75 HP 1961 *

[Lostuzer]

Evinrude 75 HP 1961
Mod.# 50525
SN 04272

I haven?t pressure tested this unit because when I got it the heads were removed and the bolts were in a coffee can severely rusted. I?m hesitant about using the bolts even after a clean up.

Before I do button it up I?d like to get an expert?s opinion about the condition... if it?s possible with what I have here.

Thanks for any and all help,
Bob






Hey, What are you looking at? My pictures and specs. are up above!

 

[F_R]

Re: Piston/Rings; Pics are better than words. * Evinrude 75 HP 1961 *

That motor has either been run without proper oil or run hot resulting in oil breakdown. Either way, it is called scuffed pistons. No comment on the blue top..I didn't even see that.

 

[Lostuzer]

Re: Piston/Rings; Pics are better than words. * Evinrude 75 HP 1961 *

If I were to bolt her back up could I hope for good compression or should I replace rings, hone, etc. first?

Thanks for such a quick response,
Bob

 

[Evinrude Boater]

Re: Piston/Rings; Pics are better than words. * Evinrude 75 HP 1961 *

No comment on the blue top..I didn't even see that.

What!? Are you blind? What a refreshing sight from looking at piston rings and broken lower units.