OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Engines Questions On Victa Two Stroke Engines Victa Mustang V40 Over Revving

Interesting BT, I have never had to replace a lower seal, I don't think in my pile of dead PT's any of them suffer from a lower seal problem. When I test these motors I always check the top seal to be sure and I run a wipe of silicone around the "O" ring and then if it doesn't fire with a puff of starter fluid it goes in the scrap pile because I believe it has been straight fueled. I don't even bother pulling the head off, because the ones I have pulled the head off have always confirmed my suspicions of a scored bore. Another way I check is when I pull the starter off I look at the skirt of the piston that is just visible and if it shows signs of any scoring it usually confirms my suspicions
I do have a couple of F/C's here that I believe a seal is the culprit, but they are a long way down the must look at list