stickerbush
New member
I acquired this motor last spring, it's a 2019 DF20A. The one previous owner did his own maintainence and seemed knowledgable and meticulous. I used the motor about a dozen times this past summer and it performed flawlessly.
I have the motor on a stand in my garage now and have been performing annual service before storing it for the winter. I have the SDS setup and it shows 118 hours on the motor, in the range I expected. When I drained the oil I saw 5 or 6 bits of copper colored metal, irregular flakes about 1mm or so in size. When I cut out the paper element from the filter I saw only a couple of tiny silvery specs.
Everything else about the motor seems normal. The valve clearance was at minimum range of spec, .007, so I set them to .008. This was the first time valve clearance was changed, per the previous owner.
How concerned should I be about the metal flakes in the oil? My plan is run it through next summer and then have another look at the oil, maybe send a sample to Blackstone.
I have the motor on a stand in my garage now and have been performing annual service before storing it for the winter. I have the SDS setup and it shows 118 hours on the motor, in the range I expected. When I drained the oil I saw 5 or 6 bits of copper colored metal, irregular flakes about 1mm or so in size. When I cut out the paper element from the filter I saw only a couple of tiny silvery specs.
Everything else about the motor seems normal. The valve clearance was at minimum range of spec, .007, so I set them to .008. This was the first time valve clearance was changed, per the previous owner.
How concerned should I be about the metal flakes in the oil? My plan is run it through next summer and then have another look at the oil, maybe send a sample to Blackstone.