Cummins mercruiser problem

[quo vadis]

Hi dont know if anyone can help I have a Bayliner 3055 fitted with twin Cummins Mercruiser 250 hp diesels. Starboard engine now has a green indicator light flashing on the dash, although the engine starts ok it seems to be in some sort of safe mode as it will not rev under load above 1500 rpm any idears?

[jimbo]

Firstly welcome to the forum

Does the green light not have a decal or lettering to tell you what it represents?

[quo vadis]

Thanks for the welcome. It is just a small green light marked engine indicator below this light is a bigger red light marked engine warning light however this is not on.

[Guest chriscraft]

hellow and welcome to the forum....scrap it!

[jimbo]

Out of my depth with these engines really! Have you checked the obvious things like Oil and Coolant levels?

[quo vadis]

Yes tried all those even changed oil and fuel filters but to no avail

[Guest chriscraft]

hi Bob ! could this be it?? http://www.ybw.com/forums/showthread.php?t=198343

[Antares_9]

Obviously the ECU thinks there is something wrong even if there isn't, about all you can do yourself is check that all the sensors are nicely connected, you could try the old trick of swapping components from one lump to the other starting with the ECU. Failing that it's the Cummins man with his laptop and diagnostic software I'm afraid.

[quo vadis]

Does anyone know a good cummins guy on the Norfolk broads with a laptop and software

[Antares_9]

You may want to drop a PM tomember PJCJ if he doesn't reply here, he's just had a late model CM sorted and may have a recommendation for a mechanic.

[Guest chriscraft]

hi, bob,

i was enquiring about some mercruiser parts for my engines ,and your problem came up in conversation,i ,ll post the detatls here fore everyone,s info,

cummins said that Prior diesels of gt yarmouth on 01493 441383 have the software for your engine,ask for gordon, or nigel haylet.

trev

[Guest]

Gary at Brundall Marine Services, Brundall Bay, 01603 714372, has just done a complete rebuild on our D4.2L D-Tronic (required through utter lack of use by the previous owner).

Phil