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Tractor Pulling Discussion Forum

M-M GBD oil level problem

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Mopower

05-18-2004 12:59:15




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I keep a GBD and drive it around once in a while. The oil level was high since I puchased it a couple years ago. No anti-freeze in the oil and pressure was 25-30, so I was not too concerned. I figured it needed an oil & filter change before I use it hard, so I drained the oil (which was over full) to find that it seemed thin. About 8 gallons worth. It had a diesel smell, but used oil in a diesel might. What might be the problem? The engine is tired and takes a few minutes to warm up and run smooth. Hydraulic over-flow is designed to go to the crankcase. Could it be diesel or hydraulic oil? How would diesel get in the crankcase? How much should it hold when I refill? Thanks for any help you can give me!

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A.P.

05-18-2004 18:08:51




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 Re: M-M GBD oil level problem in reply to Mopower, 05-18-2004 12:59:15  
You might want to check the fuel pump, although the best guess is likely to be a seal in the injection pump.

Good Luck,
A.P.



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G-MAN

05-18-2004 13:37:14




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 Re: M-M GBD oil level problem in reply to Mopower, 05-18-2004 12:59:15  
Well, if it smells like diesel fuel, it's probably diesel fuel contamination. Likely causes are faulty nozzles washing down the cylinders and leading to fuel dilution of the oil, or a leaking injection pump seal allowing fuel to leak into the engine where the pump mounts. The latter is probably more likely, as the former would cause low compression, excessive smoke, low power, etc. It needs to be fixed, because fuel-diluted engine oil doesn't do a very good job of lubing internal components and can lead to rapid wear.

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