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Taigh Ramey
Visitor
| | Posted on Thursday, April 19, 2007 - 08:34 am: | 
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Hello,
I am quite new here and I need help identifying this engine. It is on the back of a WWII truck and it was used for farm irrigation work. It is supposed to be a Marine engine of some kind. It has GM cast into it. What kind of engine might this be and what would it have been mounted in? Could it have been from any WWII military boats?
I am only interested in the truck but I don't want to see the engine scrapped if it has use for someone.
Thanks in advance for your help,
Taigh Ramey |
Lawrence T Wolfe
Senior Member
Username: larry_from_maryland
Post Number: 234
Registered: 07-2003
| | Posted on Thursday, April 19, 2007 - 04:04 pm: |
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It looks like an old 471 that i have. If not cracked its still a rebuildable moter. Can't see the exaust manifold so don't know if its marine.It looks to have the old external fuel lines so it would make it an older one(mine is a 49? and it has them). If it has the old one piece head gasket that would be hard to find. There is a small notch between the head and block in the front on the side if it is the newer gasket. Some irrigation engines used the water they were pumping as cooling water, so the pipeing in the front looks differant than other industrial moters. A marine engine would have a water cooled manifold. |
Lawrence T Wolfe
Senior Member
Username: larry_from_maryland
Post Number: 235
Registered: 07-2003
| | Posted on Thursday, April 19, 2007 - 07:11 pm: |
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It could be a 671 count the number of inspection hole plates on the opposite side. |
RichardDurgee
Senior Member
Username: richarddurgee
Post Number: 1462
Registered: 11-2001
| | Posted on Friday, April 20, 2007 - 06:22 pm: |
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1939
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Shaun
Visitor
| | Posted on Thursday, August 23, 2007 - 06:08 pm: |
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If its a 6 cylinder then it is a 6-71 GM. If its a 4 cylinder it is most likely to be a 4-92 GM. It could also have other names such as Jimmy, Gray marine, Detroit or Planis. They where all made by GM's Detroit diesel engine divisions from 1930 to 1980 something, and re-tagged. I can tell it is a Marine engine because of the heat exchanger on the front. They where made in clockwise (LR on serial #) and counter clockwise rotation (LA on serial #) They where used in 70' versions of the LCM-6 LCM-8 and many other ships of that size
If you would like to get rid of it and your in California Contact your local Sea Scout ship. They use a lot of those |
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