engine

[2poptractor]

I was wondering how much a piston should move in the cylinder. I think you check that form the skirt side? I am thinking i should just take it apart and see how loose the piston is. 14 hp kohler, bored .20 over, go any bigger? Seems the piston is a little lose in the cylinder. Is there a way to check the piston / cylinder gap? Thank you for your time, Sorry if none of this makes sounds right.. regards George

 

[2cylpartsinfo]

I'm not familiar with Kohler but if I were in your situation I'd remove the piston, measure the shirt in 3 places with a micrometer. Unless you are blessed with tools the block will have to be measured with a dial bore gauge. Probabily have to take it to a machine shop for this. Your shop manual should give piston to cylinder bore clearances.
As a starting point you can remove rings from pistons and install in block (push in with poiton) and measure end gap with a feeler gauge.
Hope this help.

 

[2poptractor]

Thank You. Any help is grately appreciated. Maybe time to take it appart.

 

[BushogPapa]

Why are you concerned with piston clearance..?
Getting unusual noises..??
If not, why tear it down..?

JMHO...

Ron.

 

[2poptractor]

Point taken. Thanks, i need to rember if it aint broke dont fix it .. lol. it blew a hole in the head..

 

[Dirtjockey]

there used to have a .030 piston set. Now they only make a .010 rod assembly. The rods are critical for long life. keep the oil changed and full. As for burning a whole in the head you might be better off with a new rod. Even if you don't change the piston. The rod is only splash lubed.

 

[Bob]

You can view or print the full factory manual at the link below.

(.pdf format.)
Kohler

 

[Anonymous-0]

put on a new head and clean the crap out of the fins and flywheel screen and run it till it drops

 

[BushogPapa]

(quoted from post at 19:06:58 03/19/11) Point taken. Thanks, i need to rember if it aint broke dont fix it .. lol. it blew a hole in the head..

Hole in the Head..???

I'd have figured a hole in the piston, not in the Head..!

Lost one rod in a Kohler twin once..(also non-forced oiled)..

Was told it was good measure to run 1/4" over-full always..
Not had another problem in 15 years..

I run 15-40 in all my air-cooled engines..

Ron..