Uh oh: used gas without oil briefly in a trimmer

herricjbJuly 17, 2013

I goofed up! I accidentally put straight gas in my Shindaiwa trimmer. It ran a few minutes then stopped and wouldn't start. That's when I realized what I had done. I think the engine seized up (it wouldn't pull to start).

Is there anything I can do?

Thank you for reporting this comment. Undo

My experience was no damage when I loaned a saw in the 70s and he did not use my mix vs his straight fuel without mix. I feel it was old gas that saved the saw. I disassembled the saw and found no damage. Today, I would only pull the muffler to inspect the Cylinder on 2 cycleâÂÂs vs the crank also. IMO you will have cyl damage before crank damage. Opinions??

This sounds like my recent concentration. Not Good!

    Bookmark   July 17, 2013 at 11:10PM
Thank you for reporting this comment. Undo

I had a STIHL blower brought to me that had straight gas ran in it, locking it up. What I did was remove spark plug, sprayed a LOT of PB Blaster in it, and some oil....every day I would put a wooden dowel on top of piston through the plug hole, and gently tap it a few times. After a week or so, the piston moved...I was able to pull it through after that, though I did it very slowly....with plenty of oil in cylinder. It is still running, now 13 years later :)

    Bookmark   July 18, 2013 at 11:12AM
Thank you for reporting this comment. Undo

Snuffy, that sounds like the sort of thing I was thinking of. What's PB blaster?

    Bookmark   July 18, 2013 at 12:20PM
Thank you for reporting this comment. Undo

PB Blaster is penetrating oil ("thin oil is the point"). The same was recommended for a Zero Turn Mower that was run with low oil. It was forcer to turn by hand, and then started. A year later it is running without burning oil or symptoms of damages.

    Bookmark   July 18, 2013 at 2:02PM
Thank you for reporting this comment. Undo
tom_nwnj(z6 NJ)

I keep my 2-stroke gas in a steel 1 gallon can. My red plastic 2.5 gal and 5 gal plastic cans only have gas (with stabil). When I need two stroke gas I always reach for the steel can. Don't see how I could ever make a mistake.

    Bookmark   July 25, 2013 at 12:23AM
Thank you for reporting this comment. Undo

Okay, I got the piston to move a little. What now, put 2-cycle oil in the cylinder and move it slowly?

    Bookmark   July 25, 2013 at 7:34AM
Thank you for reporting this comment. Undo

Keep working it. It may run again and may not. If you ran it till it siezed the piston you have definitely done damage and shortened it's life.

    Bookmark   July 25, 2013 at 9:36AM
Thank you for reporting this comment. Undo

Herr: Depending on how long you ran the unit prior to identifying your mistake , all may be salvageable. Normally 2-strokes have enough residual oil within the crankcase to protect the bottom end in this case. The rings will partially seize prior to bottom end destruction. You may get away with minor scuffing of the cylinder . A light application of breakin oil may free up the top end otherwise a light iron oxide sanding (deglazing) of the cylinder would be appropriate. In lieu of break in oil Crown penetrate and lube or Sea-Foam Creep lube will also do a god job.

This post was edited by ewalk on Sat, Jul 27, 13 at 11:21

    Bookmark   July 26, 2013 at 6:28PM
Sign Up to comment
More Discussions
Reciprocating Saw
I am looking to buy a reciprocating saw. I am not looking...
Woodzig electric pruner
I have a Woodzig electric pruner and use it often....
Waterproofing a basement
I get water in my basement just about every spring...
honda snowblower problem
i have a honda 928 snowblower... good machine, but...
Who Makes This 'New' Craftsman 50cc Chain Saw?
Doing a little research on possible replacement saws......
Sponsored Products
T-515A Flushmount by Estiluz
$462.00 | Lumens
Sunseeker 60-Inch Ceiling Fan in Oil Rubbed Bronze with Five Blades
$259.95 | Bellacor
Area Rug: Home & Porch Turner Creek Linen 5' 9" Round
Home Depot
Brisa 2000 Ceiling Fan
New Geometric Baby Blue Super Kazak 2' X 6' Hand Knotted Wool Oriental Rug H5280
BH Sun Inc
Sussex Low Console with Three Drawers
Design Within Reach
V03D Watch - Stainless Steel/Black Leather - VOID Watches
$215.00 | HORNE
Bounce Giclee Boom Arc Floor Lamp
Lamps Plus
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™