Duke000088
New Member
Hi all, I'm seeking some advice as I progress through a BR600 repair.
2012 BR600, homeowner use. Always run with TruFuel 50:1. Was running great one minute; then puttered out (I thought it ran out of gas). But on restarting, the pull cord was nearly impossible to draw and a creaky squeal came when it was pulled bit by bit.
Broke it all down and the piston pin is seized. At first inspection, everything else seems flawless. All the other bearings seemed smooth. I intend to order a new piston kit (comes with new pin and snap rings) but then I noticed one issue: The main bearing on the connecting rod has the slightest amount of play. The two "main" crankshaft bearings on either side are flawless. But on that central bearing where the connecting rod cap would normally be... just an almost imperceptible amount of up/down wiggle. I almost feel like I'm imagining it - its that slight - but its there.
My question: Could this play in the connecting rod have CAUSED the piston pin to seize? If so, then I'd be wasting time and money if its just gonna kill another piston pin. Or, it seems like being a brass bushing, a toasted piston pin is a pretty common issue on this engine.
Everything inside seems very well lubricated and looks almost factory new. The unit probably has about 75-100 hours on it. I'd be stunned if this crank/connecting rod bearing could really have worked itself bad... but who knows.
PS - before anyone asks: I have never adjusted the valves Didn't know it was a thing until reading here. If I get it back up I'll keep on that job.
Thanks
2012 BR600, homeowner use. Always run with TruFuel 50:1. Was running great one minute; then puttered out (I thought it ran out of gas). But on restarting, the pull cord was nearly impossible to draw and a creaky squeal came when it was pulled bit by bit.
Broke it all down and the piston pin is seized. At first inspection, everything else seems flawless. All the other bearings seemed smooth. I intend to order a new piston kit (comes with new pin and snap rings) but then I noticed one issue: The main bearing on the connecting rod has the slightest amount of play. The two "main" crankshaft bearings on either side are flawless. But on that central bearing where the connecting rod cap would normally be... just an almost imperceptible amount of up/down wiggle. I almost feel like I'm imagining it - its that slight - but its there.
My question: Could this play in the connecting rod have CAUSED the piston pin to seize? If so, then I'd be wasting time and money if its just gonna kill another piston pin. Or, it seems like being a brass bushing, a toasted piston pin is a pretty common issue on this engine.
Everything inside seems very well lubricated and looks almost factory new. The unit probably has about 75-100 hours on it. I'd be stunned if this crank/connecting rod bearing could really have worked itself bad... but who knows.
PS - before anyone asks: I have never adjusted the valves Didn't know it was a thing until reading here. If I get it back up I'll keep on that job.
Thanks