Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

I'm having a problem with my fathers snowblower, it's a 3 yaer old mtd(I know) with a 10 hp Tecumseh L-head engine. It will run fine for about 30 to 40 minutes then it will start surging and stall. It won't start again until it's sat for an hour or two. I'm assuming it's cooling down. I changed the oil and the plug and it seems to run great right until it stalls. It does it in all temps and in both powder conditions or heavy slush snow.

Any ideas on why it's doing this? Thanks in advance.

Matt

Great find!  Those kind of problems can drive you bonkers! 

I had an intermittant blower fan problem in my Toyota years ago. I found the reason the fan did not work was that the heater core was not filling to the top with hot water which was not telling the thermal circuit which was located at the top of the heater core that the water was hot enough to allow the blower fan to operate.  The reason the heater core was not filling to the top was because I had a blown head gasket which was pumping air bubbles in the engine cooling system!