1987 Yamaha 70 Power Trim Squeals
Posted: Tue May 25, 2021 10:56 am
Q1: who sells new seals for a 1987 Yamaha 70?
Q2: who sells new cap with seals installed for a 1987 Yamaha 70?
Q3: is there cross compatibility between the 1987 parts and later years?
BACKSTORY: [A 1987 Yamaha 70-HP outboard engine has a] trim unit that likes to squeal when it reaches near the bottom, the last 20-percent before fully down. I notice some fluid dripping from the starboard trim piston. The trim "unit" is labeled 6H1. I think newer [trim "units") are [labeled] 6H1-10 or higher. I think [the leaking starboard trim piston] is the cause [of the squeal or vice versa].
Q2: who sells new cap with seals installed for a 1987 Yamaha 70?
Q3: is there cross compatibility between the 1987 parts and later years?
BACKSTORY: [A 1987 Yamaha 70-HP outboard engine has a] trim unit that likes to squeal when it reaches near the bottom, the last 20-percent before fully down. I notice some fluid dripping from the starboard trim piston. The trim "unit" is labeled 6H1. I think newer [trim "units") are [labeled] 6H1-10 or higher. I think [the leaking starboard trim piston] is the cause [of the squeal or vice versa].