brianscathouse
Well-Known Member
- Joined
- Oct 29, 2012
- Messages
- 60
- Location
- Nelson, BC, Canada
- Occupation
- Auto repair shop owner/mechanic
Just bought an old D8H 46a and fixed the blown head gasket it had, filled all the fluids that were low after sitting for last 6 years and ran it for about 8 hrs and all of a sudden it started losing drive and leaking oil badly out of starter solenoid. Torque area plug on bottom was full. Drained it when first got machine and it had 2.5 gallons in there, normal I was told. After running it for 2 different half days with seemingly no issues on the 3rd day it started having issues and found the trans low and torque flooded, drained the torque, refilled trans and it emptied the amount I put in into torque in about 1 hr of low idle running while changing from a-blade to root rake. I am assuming the scavenge pump has failed but looking for other opinions. How hard is pump to change. I am waiting for service and parts manuals I just ordered and I ordered a new pump anyway. Aftermarket new was only 300 and if I am going to work of removing it I will replace it anyway. Torque heat on guage never went out of normal range and trans only had shifting issues after going low on oil. Once in gear it pushed and seemed to have no issues. On day problem occurred I was pushing stumps out of ground and loading converter pretty hard from idle to full throttle. I hope I don't have a torque problem. Pulled plug on top of trans filter and cranked over and it pushed lots of oil. Trans pump seems to work. Would torque still flood if converter bad but scavenge pump good even at low idle. I will change out scavenge pump first, but looking for advice. I am a light truck diesel mechanic and this big equipment is new to me, kind of fun though. Magnet on drain plug had small amounts of filings both times I opened it.