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Old 08-16-2016, 10:18 PM   #21
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cummins 555

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Originally Posted by JohnHayden549 View Post
Anybody interested in a pair of used V555's? One removed in working condition and the other not so much.
I am very interested in these engines. I am in Ventura Ca. please contact me I will inspect when it works for you. Thanks Tom
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Old 08-17-2016, 11:56 AM   #22
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V555 engines, Cummings

Tom

They can be inspected at my home. Sunnyvale, CA. 408 390-2218

John Hayden
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Old 07-19-2017, 06:21 PM   #23
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Hello and Good Day Everyone-
I am looking possibly into purchasing a 1987 Overseas 46 with 555's. They boat is located in Kent island MD. By chance can anyone recommend a surveyor or mechanic who has experience with these power plants?
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Old 07-20-2017, 05:42 AM   #24
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"These engines take a long time to warm up and i dont keep them at 600-650 rpm for idle. When oil pressure is up we increase them till they smooth out around 700rpm. We leave the slip and idle out around 700-800 till temp comes up to 140. We increase about 200 rpm for every 10-20 deg increase in water temp. slowly bringing up rpm till temps reach 160ish then to cruise of 1750-1800. We do not rush the engines. They have lots of metal (approx 2200lbs) to heat and we believe in slow and steady."

This is a good long term practice for ANY diesel.
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Old 07-20-2017, 06:08 AM   #25
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Greetings,
Welcome aboard.
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Old 07-21-2017, 11:58 PM   #26
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No recommendations but have you contacted Cummins? Ask specifically if they have someone with marine 555 experience. Or 504's or 903's as they are all quite similar other than the displacements. If they are known for 903 0r 504 they will have worked ont the 555 also. Those mechanics will likely be older fellows.

Ask around marinas and any yacht clubs. We had a couple fellows who were good with those engines.
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Old 07-22-2017, 01:21 AM   #27
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555's were used in a lot of different heavy construction vehicles and farm tractors. You might try a repair shop that works on construction vehicles, they may have someone that is familiar with VT555's. They are not a high revving engine, my mechanic says keep it below 2100 RPM and it will last forever. We hit 8.5 knts at 1900 with our single 555
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Old 07-22-2017, 01:37 AM   #28
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Had the V504-M, parts were a problem in 1980.

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Old 07-22-2017, 09:11 AM   #29
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IMO you have a good program but personally I would add load a bit faster to bring up combustion temps sooner
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