Late model 50hp knock??

Clams Canino

Clams Canino

Commander
Joined
Jan 10, 2004
Messages
2,179
Hi! It's MY turn to ask advice. :D

New arrival to the Clamshack(tm) is a very late model 50hp triple ser# OT218646. It has a slight to moderate knock in the what sounds like #1. Owner wants it found and eliminated, and a new powerhead is $4500 so I gotta go in and find it the old fashioned way. :)

Any history with these little triples as to a known issue? What ought I be looking for (other than the obvious).

-W
 
L

Laddies

Banned
Joined
Sep 10, 2004
Messages
12,218
Re: Late model 50hp knock??

Clams I had 1 that had carbon build up make it knock (that would be to easy) and a couple that were over reved on startup with damaged pistons-Bob
 
H

HSEMJ

Seaman Apprentice
Joined
Jun 3, 2005
Messages
33
Re: Late model 50hp knock??

Does it seem louder at idle and mostly dissappear when at higher rpms? Could be a scuffed piston, causing piston slap. seen that more than once.

hope that helps
 
Clams Canino

Clams Canino

Commander
Joined
Jan 10, 2004
Messages
2,179
Re: Late model 50hp knock??

Thanks for the replys... I'm gonna do it today so I'll post back. Been real busy here, plus the slower BBS with my dial-up makes for less visiting.

-W
 
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