Wednesday I was returning to the marina and I started losing RPM's. I changed the 10 micron filter thinking it may need it, Started the engine and the lower unit started clunking when I put it into gear. It made it back and a little of the clunk was still noticeable. 3 weeks ago I nicked a rock with my prop causing minor damage. I am wondering if it could of cause this clunking. Pulled the boat and it is being checked out right now.
Lower unit making a clunking noise
- Thread starter markman03
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Wet Willie
Well-known member
You may have chipped a tooth on a gear or something? USUALLY, it takes a pretty hard impact to cause lower unit damage but you never know. The first thing I would do is drain the lower unit oil and check for metal shavings and go from there. Sorry for your bad luck buddy! Hope it turns out to be as painless as possible!markman03":2kdu48ea said:
Well I just got the word from the shop. It will cost me my 500 deductible. She's toast.
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I would change LU oil first and inspect, and replace both crush washers.
I just replaced LU and shaft was bent slightly about 0.024" but seals were bad and there was no oil just water in the LU
I bought a new style reman LU but not a SEI.
I just replaced LU and shaft was bent slightly about 0.024" but seals were bad and there was no oil just water in the LU
I bought a new style reman LU but not a SEI.
Well that is what happened to me. The shaft was bent and the seals were ruined. When the lower plug was pulled it looked like a chia pet.
Wet Willie
Well-known member
Sorry to hear that. The good news is, if you buy a reman or good used unit it's a pretty easy job. Make sure you put a new water pump on the unit upon install and you should be good to go!markman03":j2j43x2q said:
