Newly rebuilt Kubota B6100 with mystery engine oil leak

   / Newly rebuilt Kubota B6100 with mystery engine oil leak #1  

SilverLakeFab

Bronze Member
Joined
Nov 23, 2008
Messages
83
Location
Concord, NH
Tractor
Kubota B6100D & Honda RT5000
I recently completed the engine rebuild on my 1978 Kubota B6100 and have just barely been able to put it to work with snow removal (we've been getting pounded in the North East). It takes me a couple hours to clean my driveway with this little machine and this morning the tractor started draining engine oil. I know that the machine was running pretty hot because the radiator overflow tube had a little bit of coolant in it. The weird thing is where the oil was coming from. The oil was draining off the bottom of the starter, and not just dripping, but 3-4 ounces must have drained out, so it was a solid stream for a few seconds. I checked the oil level is where is should be and not too high. Honestly, I don't know where this oil is escaping from. Does anyone have any suggestions or recommendations as to where to check? I've attached a picture of where the oil was leaking, or rather dripping off the machine. I'll inspect again and report back, but this is a weird one.
leaking kubota.jpg
 
   / Newly rebuilt Kubota B6100 with mystery engine oil leak #2  
G'day pull the starter off and check for oil in the bellhousing if so possible rear main failure or maybe welch plug on the back of the camshaft


Jon
 

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