vm or cummins blocks on cummins/mercruiser merge?

arrivi · 10-25-2009, 11:40 AM

I`ve been looking to buy a bigger boat and I ran into a couple of 4.2L mercruiser series (black), 6 cyl 2006 diesel engines. Does anyone know for a fact if these engine blocks are cummins blocks or they are the old VM 6 cyl blocks??? they came with a mercruiser/cummins catalogue but they look very similar to those VM`s. Can anyone help with this?? are they still VM blocks?? which ones are really cummins block/engines??

thanks

seapower · 10-25-2009, 02:58 PM

They are VM engine's. When Cummin's and Mercruiser merged, those engines came under the blanket of Cummins/Mercruiser. From the B Series and up, those are true Cummins engines we have all come to know. I don't know the HP range of the engines (4.2's) you are looking at, but I personally have seen very little problem with the old 200hp mechanical engines. These engines now are electrnic ,common rail engines like most of the rest. Frank

arrivi · 10-25-2009, 04:52 PM

thanks for your quick response, they are in fact 6 cyl. and supposed to be 285 hp, but as far as the common rail, I did not see anything on the like, but it is good to know that they are VM . Now, would you happen to know if they ever fix the crankshaft- damper problem for this model?? well, I will have to comeback and check on the common rail system. thanks, hector

10-25-2009, 02:58 PM	#2
seapower I think Admin is going to let me have this space Join Date: Feb 2008 Location: Bath,NC Posts: 1,448 Credits: 4,821.8 Boat: 25' DownEaster Home Port: Bath, NC Best Catch: My wife Occupation: marine diesel service owner	arrivi, They are VM engine's. When Cummin's and Mercruiser merged, those engines came under the blanket of Cummins/Mercruiser. From the B Series and up, those are true Cummins engines we have all come to know. I don't know the HP range of the engines (4.2's) you are looking at, but I personally have seen very little problem with the old 200hp mechanical engines. These engines now are electrnic ,common rail engines like most of the rest. Frank

10-25-2009, 04:52 PM	#3
arrivi #1 Lurker Join Date: Oct 2009 Posts: 3 Credits: 49.1	frank thanks for your quick response, they are in fact 6 cyl. and supposed to be 285 hp, but as far as the common rail, I did not see anything on the like, but it is good to know that they are VM . Now, would you happen to know if they ever fix the crankshaft- damper problem for this model?? well, I will have to comeback and check on the common rail system. thanks, hector

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