laxcc18
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I notice my oil looked like it had fuel in it how do
i fix the problem is it injector or something else I need help
i fix the problem is it injector or something else I need help
-
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250 cummins fuel in oil
- Thread starter laxcc18
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It may be a simple O ring or gasket. The fuel goes between heads in a tube.
Pull the valve covers and look for a loose tube.
The whole fuel system is always pressurized and the injectors are mechanical.
Pull the valve covers and look for a loose tube.
The whole fuel system is always pressurized and the injectors are mechanical.
laxcc18
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Thank you I'll try see if I can see anything . I was trying to find info I saw some stuff about injectors staying open but not sure if that would dump fuel into the oil as well
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The best way to find the leak remove the valve cover remove the return line, get a bottle of florescent dye mix up a gallon of fuel with dye install a pump to build some psi in heads you will need to flow some dyed fuel first. (hand pump like the prime pump that is on the truck) pressure up the system and take a black light to find where the leak is. You will see some seepage from all of the injectors but you are looking for a big leak. I am not sure how good of friends you are with your local truck shop but the most likely have all the stuff you need and possibly let you barrow a black light and by the dye from them.
laxcc18
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ok locate a injector with bad o rings. any idea were i can get new ones
ke5eua
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Cummins dealer should be able to get you the o-rings. There is always e-bay, and such but you would need the part number then.
- 324
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I think I have seen them on e-bay, any Cummings shop and most truck engine parts/service (local truck shop).
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You can call cummins and give them the engine serial number from the metal data tag on the timing cover and they can tell you all.
laxcc18
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I can not find the o ring part number can you guys help please
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I just told you what to do. Call Cummins directly and give them the engine serial number they will tell you what parts and you will be able to order them from Cummins.
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You might be able to take your engine S/N and CPL #'s from the data plate on the engine and call or go in to the Cummings dealer and have them look it up the o-rings should not be that expensive even from the dealer.
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Can't help with the # but thought I rember reading use oil and STP mix to lub for install.
laxcc18
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It did indeed end up being an bad o-ring on one of the injectors. I went ahead and bought a couple of injector re-build kits off e-bay to fix it up. Doesn't seem to leak anymore just working on getting the timing adjusted on the pump so i can get it back on the road. Thanks for the help everyone!