k-181 question
 

ok the lil engine puffs smoke alittle but shes been sittin for afew years i changed the oil, added fresh gas after old drained and tank washed, replaced breather filter and gaskets, pulled plug and added 2 oz of marvel mystery oil to let the rings soak,

as i was turnung the engine over by hand looking into the spark plug hole i couldnt see the piston moving at all... rtactor was rolling forward but is there something that would keep it from moving???? :bash2: ran like a top when i cut it off

If you can see a black piston moving in the dark thru a 5/16" hole, you are a better man than all of us..:biggrin2.gif:

Take a 1/4" wooden dowel about 6"+ long, and stand it up straight in the plug hole and it will (or should) move with the piston.......

thanks
 

thanks for the call jay, ill post up when i "fire her back up" and see what happens..... :beer2:

I doubt that will work either, as the spark plug isn't over the piston on a K181 IIRC.

????
 

the piston is not right under the sparkplug??? please explain that mat...:bash2: soo if im looking into the cylinder through the sparkplug hole with a light im not looking right at the top of the piston???so the spark must shoot sideways towards the valves???:bash2:

I beleive the plug is right over the exhaust valve... That's where it is on all of mine... It it will be over the deck itself

The spark doesn't have to "shoot" any direction... At the time of spark the chamber is full of fuel/air, the spark just has to "be".

Here is what Matt is talking about.

got it... thanks use to looking into small block chevy's being able to watch the piston top commin up. i thought it looked like i was seeing the valve but wasnt sure thanks

I just look at my 70 and 800 motors.
The only thing I see is the top of the block in my 70 and the motor for my 800 (K181).

Some of the 10, 12 and early 14 horse power motors had the spark plug over the piston. The heads don't interchange on a 7 or 8 horse power motor.