Case 1070 fuel in crank case

veteranzebra

New User
Oil has been rising in crank case. Fuel test showed 10% dilution after running for 4 hours. Replaced o ring in pump which was no help. Had injector pump redone still same problem. TrActor runs good, does blow some white smoke when idling. Any thoughts what can be doing this? Thanks
 
White smoke means low compression heat, so that fuel does not get burned and THAT fuel will end up in the crankcase too. With engine idling loosen each injector inlet fitting, taking fuel away from that cylinder. When the white smoke clears, but starts again with the fitting tight you have found the cylinder that needs repair. Might also be more than one. Other option is pull all six injectors and do a compression test..
 
Can I do this at the top of the injection pump? Tractor runs to good to be a bad hole I think? Could injections cause this dilution. Thanks for you response. Spent to much on this already
 
Take rectangular plate off side of inj pump, pump fuel primer and watch for diesel coming down on one of the plunger springs. Also one spring may appear cleaner/washed down.
 
Will take a bit to check injectors will need to pull the lid to get at them. I did run it a bit and used a laser temp gun. I was expecting hotter but measured three times and were close. Temps (degrees F) from front to back were 224, 210, 216, 205, 156, and 174. The hole with 156 started at 184 and couldn?t reproduce it. Tried measuring same spot and distance each time.
 

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