8 hp E'rude 1990 ... bonehead move

[Tim Frank]

Ran this engine with no oil in the gas for about 5 minutes. Yes, I know.
It started to slow down ... and stopped.
Did NOT actually seize,
I am going to fog it several times and run it on double oil for 1/2 hour or so.

Anyone else has success doing something else/additional?

Thanks in advance.

 

[Mc Tool]

That might get the piston moving in the bore but you cant undo the damage . You should now consider your engine wounded , and hope the big end is ok
You aint the 1st and you wont be the last .

 

[racerone]

Post results of a compression test.----Actual numbers.-----Or remove cylinder head and inspect cylinder walls.----Head gasket is cheap.

 

[saltchuckmatt]

To bad...awesome motors.

 

[kbait]

if compression #’s are adequate (over 50), run it. If it will idle down slow, you got lucky!

 

[Mc Tool]

if compression #’s are adequate (over 50), run it. If it will idle down slow, you got lucky!

yeah , quite a bit over 50 .

 

[Tim Frank]

Thanks for the comments.
1. Compression is just over 100-PSI on both cylinders.
2. Idles well, but coughs and smokes a bit as it is running on ~ 24:1 for a gallon or two ... and I fogged the crap out of it.
3. Took it for a spin and it gets to full power. Will monitor closely and cross my fingers.

 

[Mc Tool]

Yay .....sounds like you got lucky . I have seen some 2 strokes grind to a halt thru lack of lube or overheating , or not enough bore clearance after a rebuild , that suffered no apparent damage .........also seen a few that did ...spectacularly so

 

[tphoyt]

Sounds like you be be one of the lucky ones.

 

[Tim Frank]

Post results of a compression test.----Actual numbers.-----Or remove cylinder head and inspect cylinder walls.----Head gasket is cheap.

100-105 both holes.

 

[bakerjw]

LOL. You are not the only one to do a bone headed move. We all have which is why we nervously chuckle and don't hack on people.
As mentioned, head gaskets are cheap. I'd pull the head and look for scoring in the cylinder walls. Scoring never gets better.