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Old 17-02-2019, 17:59   #16
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Location: Langley, WA
Boat: Nordic 44
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Re: Starter for Yanmar 4JH-DTBE

I don't mean to hijack this topic, but, why do so many people have starter failures and feel the need to carry spares.

I had a Perkins 4-108 that was 18 years old when I replaced the engine, still had the original starter and never had a problem. Present Beta marine (Kubota) BV2203, now 15 years old and never had a starter problem.

Are your starters burning up due to hard starting engines? Never had to crank an engine more than a second or two to start it. I always use the preheat on the Beta, even in hot weather. I did have starting issues with the Perkins in cold weather but would pre-heat the block with a small space heater or use the cold start aid to reduce this problem.

So, how long does it take to crank your engine?
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Old 17-02-2019, 18:06   #17
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Location: San Antonio, TX/Port Aransas, TX
Boat: 1990 Macintosh 47, "Merlin"
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Re: Starter for Yanmar 4JH-DTBE

Actually, mine hasn't failed. And it's 29 years old. I now believe my problem is a wiring issue, which I will try and sort out next weekend. Seems that it's pretty common on Yanmars for the start wire to corrode enough internally to be unable to carry enough current to start the engine. My understanding is that in later models, Yanmar added a start relay at the engine, to offset this problem - instead of beefing up the wire harness. Same problem exists with the stop solenoid, BTW.

So, I was looking to replace the existing one, since I was planning on pulling it. At this point, I think my plan will be to pull it, and have it rebuilt, then reinstall.

Thanks for all of the replies.
Bill Streep
San Antonio/Port Aransas, TX
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