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Old 04-06-2014
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yanmar ysm8 tick slap - video

Hi Guys

Im interested in purchasing an old small sailboat with an equally small and old yanmar.
The engine powers the boat long just fine, seems to run well and smokes little, if at all.

However it has a very pronounced slap like noise.

Let me know what you think

https://www.youtube.com/watch?v=jBhG...ature=youtu.be
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Old 04-07-2014
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Re: yanmar ysm8 tick slap - video

Sounds just like mine!....Dale
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Old 04-07-2014
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Re: yanmar ysm8 tick slap - video

seemed to start okay.
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Re: yanmar ysm8 tick slap - video

Sounds like the African Queen on the run, It's a single Banger. Pushes to hull speed and burns 1 liter per hour. mine is also a V drive !....Dale
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Re: yanmar ysm8 tick slap - video

A YSM8 through a v-drive? Egad, it probably has 3 hp at the prop.

Cowlum, was a that a cold start? First start of the day?
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Re: yanmar ysm8 tick slap - video

Maybe , YSM 8 is only 7hp .....Dale
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Re: yanmar ysm8 tick slap - video

Quote:
Originally Posted by bljones View Post
A YSM8 through a v-drive? Egad, it probably has 3 hp at the prop.

Cowlum, was a that a cold start? First start of the day?
Yes, it should have been the first start of the day. I asked the owner to specifically not start the engine before I arrived, he seemed trust worthy.. The block was cold to the touch and it started much easier once warm.

It may be low power but it had no issues with a 1.8-ton boat. Besides,in my price range I cant be too choosy..
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Re: yanmar ysm8 tick slap - video

Quote:
Originally Posted by bljones View Post
A YSM8 through a v-drive? Egad, it probably has 3 hp at the prop.

Cowlum, was a that a cold start? First start of the day?
I just looked up what a vdrive is.. This boat doesnt have a vdrive, its a forward mounted engine. What you are lookiing at is an engine mounted under the v-birth.

Thanks
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Re: yanmar ysm8 tick slap - video

Yes : but mine is and it does the job well . My boat is 28ft. and 6000lbs empty so it should do well for you!....Dale
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Re: yanmar ysm8 tick slap - video

No Experience with that engine, but some with others. I have noticed that when cold some sound similar, but with a single it is more noticeable. After getting to full operating temp, the metallic type noise seemed to mellow out. There is a whole lot of commotion going on in there when it fires. If it starts easily, runs alright, pushes the boat, doesn't heat up or smoke excessively, use excessive amounts of oil, and the coolant is not milky, it is probably/possibly good for a while. A good long hard run should show any severe problems. An oil analysis may show severe wearing or excess fuel problems.

Paul T
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