Posted by falcon061973 on October 1, 2008, 1:45 pm
I have this snowblower, it is an old one, tecumseh engine. It has
good spark , until it turns over and fires and the flywheel key shears
off. When I pull with the plug disconnected there is no issue. As
soon as the engine fires it shears the key. Do i need to adjust the
valves etc?
Thanks
Posted by EXT on October 1, 2008, 10:25 pm
I think you will find it is backfiring, you may want to check the
timing/points.
>I have this snowblower, it is an old one, tecumseh engine. It has
> good spark , until it turns over and fires and the flywheel key shears
> off. When I pull with the plug disconnected there is no issue. As
> soon as the engine fires it shears the key. Do i need to adjust the
> valves etc?
> Thanks
Posted by John Smith on October 15, 2008, 11:21 am
> I think you will find it is backfiring, you may want to check the
> timing/points.
> >I have this snowblower, it is an old one, tecumseh engine. It has
> > good spark , until it turns over and fires and the flywheel key shears
> > off. When I pull with the plug disconnected there is no issue. As
> > soon as the engine fires it shears the key. Do i need to adjust the
> > valves etc?
> > Thanks- Hide quoted text -
> - Show quoted text -
The name Techumseh says it all. Yea, it may be the most popularly used
engine on snowblowers but its still a piece of shit.
Adjusting the valves will have nothing to do with the engine shearing
the key. Is there any other "binding" situation that is causing the
key to shear, and if not, it has to be with timing, but I do not see
how it can be that far out of time to cause it to shear key that quick
and still be able to start. Pitch the dam thing and buy a new one,
its given up allthe goodie it can muster.......T E C U M S E H ...yuc!
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> good spark , until it turns over and fires and the flywheel key shears
> off. When I pull with the plug disconnected there is no issue. As
> soon as the engine fires it shears the key. Do i need to adjust the
> valves etc?
> Thanks