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Onan MDJC Injector Heat Shield and Cylinder Head


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Old 05-31-2016, 03:28:06 PM
StPeteDieselGuy StPeteDieselGuy is offline
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Question Onan MDJC Injector Heat Shield and Cylinder Head

Hello all, I must admit that I have been a lurker for quite a while as the site is quite a resource for my old Onan marine generator. A new genny is out of the budget for awhile yet so I have to keep the old beast still running a little while longer. I decided to pull the injectors and have them rebuilt in attempt to reduce the smoke and diesel sheen on the water when shes is running. I am hoping for a little guidance from the collective group here as when I pulled the #1 injector out, the heat shield remained in the head and appears to be quite corroded in the pocket. So the question is, one - any guidance on how to pull this thing out to be able to replace it as it is quite rusty inside the hole. Secondly - If i can't get the shield out, does anyone have any idea where I might find a head and head gasket for this generator?
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Old 05-31-2016, 04:02:14 PM
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BigBlockChev BigBlockChev is offline
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Default Re: Onan MDJC injector heat shield and cylinder head

Pm me if you are looking for a used head with injectors , I have quite a few marine diesel generators and parts. Try Onanparts for the head gaskets or Gaskets to go, both advertise on this site. Cheers Dan
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Old 06-01-2016, 09:41:00 AM
StPeteDieselGuy StPeteDieselGuy is offline
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Thumbs up Re: Onan MDJC injector heat shield and cylinder head

Hey thanks BigBlock, I just recently relocated the boat to Seattle, so I am just down the road from you it appears. Fortunately, or unfortunately, I am trying to keep this thing running for another year or so until I can pull it and replace it with something smaller and quieter.....but, the damn thing won't die!! Until then I might need some assorted bits and pieces, so I appreciate the heads up on what you have.
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Old 06-01-2016, 12:43:12 PM
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Talking Re: Onan MDJC injector heat shield and cylinder head

OnanParts is just south of you in the Tacoma/Olympia area.....
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Old Today, 01:42:38 PM
Ahtariver Ahtariver is offline
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Default Re: Onan MDJC injector heat shield and cylinder head

Quote:
Originally Posted by BigBlockChev View Post
Pm me if you are looking for a used head with injectors , I have quite a few marine diesel generators and parts. Try Onanparts for the head gaskets or Gaskets to go, both advertise on this site. Cheers Dan
Hi there, I’m looking for an exhaust valve for a 3MDSP Onan. Any chance you’d know where I could find one of these? Thank you.
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