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aliboo

05:55PM | 04/19/04
Member Since: 04/18/04
3 lifetime posts
Bvlawn
My 7 year old son mistakenly poured the oil into the gas tank of our brand new craftsman self propelled lawnmower. We have never even started it. Is there anything I can do or is it ruined? Any help is much appreciated.

WillyE

07:46PM | 04/19/04
Member Since: 04/18/04
12 lifetime posts
It is not ruined by any means. Simple cure would be to tilt mower on its side to remove the oil. You should be able to tilt it any-which-way if the mower is new and there isn't actually oil in the oil tank. Once as much oil as possible is removed, and put in its proper place, fill the tank full and of gas and mow. Any oil that is left will be burned out through the exhaust. The first time you mow may be a little smokey. Difficult way is to remove gas tank and empty contents to make sure you get it all. Hopefully with the mower being new you can maneuver it enough to dump the tank. A rag may be able to soak up any oil you can't dump.

aliboo

03:40AM | 04/20/04
Member Since: 04/18/04
3 lifetime posts
Thank you. You made my day as I could not afford to buy another one.

retisin

03:03PM | 04/20/04
Member Since: 05/19/03
457 lifetime posts
If you can (most of the time is held on by 2 clips and the gas line) i'd just take the tank off and drain the oil this way then flush with a little gas,swish it around a little dispose of properly or use on a bombfire.Reattach gas tank and line fill and mow.If you do tip the mower over make sure you give it a few hours for oil in the oil pan or engine to settle back in before starting or you could prematurely damage the engine.

Anonymous

05:13PM | 04/20/04
Retisin, thanks for adding something I forgot mention. I was just coming back to say you could rinse out tank with a little gas first. I agree, taking off tank would be the most effective way. If oil did get in the engine, it wouldn't damage it. Maybe gum up the carburetor, requiring it to be cleaned or foul out your spark plug, requiring it to be changed. No permanent damage would occur. This shouldn't happen unless you cranked the mower with the oil in the tank or if too much was left when it was emptied. Sorry I forgot to mention you can swish with gas to help remove excess oil.

WillyE

05:27PM | 04/20/04
Member Since: 04/18/04
12 lifetime posts
Thanks to Retisin for adding something I forgot to mention. I was just coming back to say you could rinse with a little gas after you have emptied oil to remove the excess. I agree, taking the tank off would be the most effective way. If oil did get in the engine, which is unlikely if you did not crank it and empty it well, it wouldn't permanently damage the engine in any way. It would have the possibility of gumming up the carburetor, requiring it to be cleaned. Or, foul out the spark plug, and you'd have to replace it. Nothing damaging. Sorry I forgot to mention you can swish with gas.

retisin

03:43PM | 04/21/04
Member Since: 05/19/03
457 lifetime posts
I was told by small engines tech that tipping of mower for any length of time (even to change the blade)could cause the oil to drain away from crank,thus not having oil in the case but towards the top of engine.Could damage the crank from no lube for it because it is all drained up or away.

So I was just passing on the same info,he said in same retro respect as tip your car over for 10-20 minutes then put it right side up again and then start it,it will have oil but not in all the places it needs to be.

WillyE

07:02PM | 04/21/04
Member Since: 04/18/04
12 lifetime posts
I agree. I wouldn't want to leave the mower tilted for a long with oil in the reservoir as to avoid problems which this can cause. I assumed there wasn't oil in the the oil reservoir yet, since it had been put in the gas tank. I hope I made the proper assumption.

If you tilted your mower and there wasn't enough oil left in the reservoir to properly lube the crank, piston, etc. it is very likely you would be able to tell. You may not even be able to crank the mower due to the amount of oil in the cylinder. The oil will create a hydraulic lock, preventing you from pulling the starter cord. If it doesn't completly prevent you from pulling the cord it could just be really hard. If this doesn't happen it could be leaking out of the carb, or maybe just smoke like a freight train. In any case you will almost definently know oil has made its way out of its place. No matter what, you can always check the oil with dipstick to see if there is enough lube. If the proper amount of oil is in the reservoir the proper amount will make it to the crank. If the mower becomes locked up, you can remove the spark plug and crank the mower. This will squirt the oil in the cylinder out through the spark plug opening. Squirt all you can, the rest will burn away. You can avoid all this by only tipping the mower for a short time period like Retisin has said, and when you do, tilt away from the carburetor. It is almost always alright to tilt the mower straight back towards its handles. I agree you shouldn't tilt it for an extended time period, just saying you should be able to tell if oil has moved from the reservoir.

BV003833

11:02AM | 04/08/14
So I did the same thing, I poured the oil in the gas tank (mower never had oil). I removed the tank and drained the oil. I then put the oil in the correct place, as instructed above. When I tried starting the mower it would not start. - It turns when I pull the starter cord. I think I may have left some oil in the gas line that may have made its way to the engine. Any suggestions on whats preventing the mower from starting or how I may be able to fix it?

fayyaz

02:54AM | 07/03/14
Member Since: 07/03/14
1 lifetime posts
Ok so I just bought aCraftsman lawn mower today after doing a lot of research when i brought it home is was so excited tto start it that i did the same thing the first thing i did was put the oil into the gast tank i emptied almost all of it out. Now i know i can probably fix it up but i dont want to go through the hassle so i was how can i return or exchange this mower.

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