1979 evinrude 15hp gave up the ghost

[Kajun37]

well yesterday i took my lil 15hp out for its first run in yrs....it had sat up for 4yrs and was froze and i managed to free it up and getting it running again....it ran ok for awhile then i noticed it start to lose power...so brought it home and did a compression check on it ...30 psi on top and 110 on bottom...pulled head today and seen a big gouge on the bottom of the cyl...pretty deep and wide..plus a small piece missing from the piston on the lower left of it....

i'd like to find a good used powerhead for it and just pop it on and be done with ...do you think it would be worth it do a rebuild on it? i'll prob just replace the top piston and have it overbored...bottom cyl looks good so i'll just re-ring it...whatcha think caused a deep and wide gouge like that??

also can anyone else get on the BRP site to look at the diagrams? its asking me for a password now...

 

[Joe Reeves]

Re: 1979 evinrude 15hp gave up the ghost

A wrist pin retainer failed that allowed the wrist pin to drop down which destroyed that cylinder sleeve. If you go the rebuild route, that sleeve will require replacing.

 

[Kajun37]

Re: 1979 evinrude 15hp gave up the ghost

thanks Joe...looks like a rebuild is not cost effective then...i'll try to find a used powerhead instead....i prob cracked the wrist pin when i was trying un freeze it