running with no oil

[leafs]

yesterday i took my kids tubing i have a 1976 70hp johnston. i hooked up the 20litre gas tank and used about halve then i remembered i did not put any oil in the gas.it should be 50:1 there was a little gas with oil left in the tank before i filled up but not much.will i have hurt the motor and is there some way to tell.

 

[kenimpzoom]

Re: running with no oil

Check the compression to determine how much damage was done to the cylinder walls/rings. <br /><br />Does it make any unusual noises?<br /><br />Ken

 

[Jack Shellac]

Re: running with no oil

This is a tough one. Usually a motor with no oil will show symptoms by overheating and slowing down due to the excess friction and eventually seize and stop completely. Since you didn't notice any of this happening, you may have lucked up. Do a compression test to see if you've got around 100# and the cylinders are within 15# of each other.

 

[Hooty]

Re: running with no oil

I have heard and read some amazing stories about how long some of these engines run without oil. Do the compression check and post back to us and let us know what you found.<br /><br />g'luck & c/6<br /><br />Hooty