4JHE to 4JH3E Repowering

[a64pilot]

A Diesel who's fuel pump governor breaks can "run away".
It's actually the only run away I've witnessed

[Telstar 26]

I think I can give some insight here. Once upon a time I had the same problem with my Yanmar. The boat had been sitting for years with the throttle advanced. It moved fine but when I started the engine it ran away. I traced the problem to the injection pump. The throttle control arm on the injection does not operate the fuel metering unit directly but through a spring. In storage the sliding rack that meters the fuel can stick in what ever positionn it was left in. The throttle will move and make you think you are changing the fuel but it is just spring pressure. I was able to open the cover plate next to the throttle arm and gently move the metering rack back and forth, with some lubrication and pacience I was able to get it to move over its whole range. Problem solved.

[SailRedemption]

Originally Posted by NCboatrx

BoatyardBoy, If you had bothered to check on the Beta Marine website you would have found that the Beta 43, 50 and 60 have exactly the same mount centers as the Yanmar JH series. The fact that Beta Marine also offer wider 22" mounts as an option is useful for some. Why do you keep on quoting incorrect information?

It's not incorrect information, I took that information from the website when I was looking for a repower. I looked at the 75hp engines for both because that's what I had, instead of his 60hp slight error on my part.

Glad to see you on your toes though! Wink.

- Ronnie...on the geaux

[Sand crab]

Reman 4jhe $5600.
Yanmar 4JHE Diesel Engine For Sale

[Cheechako]

Don't worry! This one hadn't run for 100 years!
https://grrc.goodwood.com/race/histo...time-100-years

[GordMay]

Greetings and welcome aboard the CF, Telstar.

[DivinaVita]

Wow! You guys are amazing. Thanks for all your thoughts, ideas and welcome messages!

I am attempting to gather answers to the questions that each of you have asked; however, inasmuch as I live approximately 1000 miles away from where the boat is currently located, the answers are a little slow in coming. My wife and I hope to visit the boat over the upcoming holidays; and, while there, I will gather as many answers as possible and report back with my findings. Additionally, while there, I will attempt as many of the troubleshooting, diagnostic and repair procedures that have been mentioned.

Regarding the number of hours on the engine, the hour-meter indicates 490. However, I cannot verify the integrity of this number; and, given the engine's outward appearance, I have very little confidence in that number.

At this juncture, I am not yet compelled to abandon the engine; so, as suggested, I have already contacted several injection shops to inquire about rebuilding the pump. Thus far, without exception, the shops want me to send them the pump, before discussing a rebuild.

For now, I believe that I will take the slow and deliberate approach regarding the engine. Hopefully, with a some TLC and effort, the little diesel can be coaxed back to life.

Thank you all for your information, assistance and encouragement! I will keep you advised as my information becomes more detailed and robust.

Rick