Am I stupid for doing this?

Treestuff
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KD57

KD57

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I have a habit I picked up years ago, that my friend thought was silly. Whenever I shut off a saw, weedeater or anything w/ a pull rope for a period of time or for storage, I always pull the piston to TDC to keep foreign junk or insects out of the cylinder. If I remember, even the Honda motors, say on a generator or splitter, have a notch on the flywheel cover to indicate TDC and recommend this.
So, is it really necessary to do it? :confused:
 
Certainly couldn't hurt, but I've never seen this mentioned on any of my Honda or any other brand of engine manual.
 
O.k. i'm bored so he we go, ways to enter, spark plug - sealed. Exhaust- not fully but w/spark arrester cant see to much entering. Intake-a good maintained a/f anything possible but not likely. Crank case- na cant see that either????
 
dustmaker that thing looks like it was left at the bottom of a 55 gal drum full of water!! I spent some time turning wrenches and vehicles w/aluminum wheels most would be problematic to get off if they were not regulary rotated or taken off for what ever reason. The same thing that white corrosion type would almost bond them together, what a pain. Moister is powerfull on anything!!!
 
I started doing this back in the early 70's, we had some saws that had mufflers that were nothing more than a shield, w/ piston skirt fully visible. The mods I have on mine can certainly let a bug crawl in there, or water get in if it should blow in just right.
My thinking was nothing can really get thru the filter intake area, but could enter thru the exhaust area right into the port. I have seen some muffler mods where you can see the piston looking in the muffler opening. But if the piston is TDC, the skirt is showing, but nothing will get into the crankcase or on top of the piston. Moisture could get to the cylinder walls otherwise couldn't it?
 
deer slayer said:
dustmaker that thing looks like it was left at the bottom of a 55 gal drum full of water!! I spent some time turning wrenches and vehicles w/aluminum wheels most would be problematic to get off if they were not regulary rotated or taken off for what ever reason. The same thing that white corrosion type would almost bond them together, what a pain. Moister is powerfull on anything!!!
Click to expand...

it did not freeze so i still have a good p/c... yeah i think it was water... bad water...
 
The thought behind this idea was probably more for 4 cycle engines, but on top dead center when both valves are fully closed, and the piston at the top of the stroke.
 
I don't think it's stupid at all. A friend of mine who used to race 2 stroke RC cars used to do the exact opposite. Would leave piston at bdc. He said it was to prevent seizing. Evidently these engines use no rings and are tight!!!
 
Single cylinder 4-strokes should always be left at TDC for storage - stops valves from sticking in the open position.
 
GASoline71 said:
Old wives tale...

Not neccessary at all...

Gary
Click to expand...

True....Unless you have a open muffler,,I wouldnt worry....Please dont say your stupid for asking....Only stupid people I know of is they think they know it all and dont ask and learn.....
 

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