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Old 05-25-2007, 09:28 PM   #1
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Default can old nitro fuel destroy glow plug?

my motor destroys glowplugs on and on, adn seems to be too rich.Ii I lean it down it won´t run.after a short time,about one tank te glowplugs go bad.

Is it possible that the fuel has gone bad(stored it for a year in a dark cold place, was only open for one time before storage)?

Or do you think that there are other problems?

How do you know if the fuel is bad?
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Old 05-25-2007, 09:33 PM   #2
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well Ive never had a gallon of fuel last more than a few weeks but I do know you are supposed to store it in a cool dark place. and as far as the glow plug thing, with what info you provided, kinda sounds like the top end is worn out
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Old 05-25-2007, 09:42 PM   #3
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That's an interesting question. I had a gallon of Byron's that I opened in October and didn't use again until Late April. My engine ran well but I have been through two plugs in three races. Plugs looked new but the coil had broken. I have new fuel now so we'll put this idea to the test.

Your engine does sound shot though. How is the compression?
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Old 05-25-2007, 09:44 PM   #4
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that test sounds good.

maybe the motor is defective,maybe not,there seems no conrod play to be,but since I bought this motor used,only god knows for sure if it wasn´t abused too hard.

my plug coils seems to break more iside, no visible demolition.
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Old 05-25-2007, 09:47 PM   #5
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compression seems fine, but the crankcase bearings is a little noise.
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Old 05-25-2007, 09:52 PM   #6
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and old fuel makes a motor run like ....
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Old 05-25-2007, 10:38 PM   #7
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fuel has a shelf life of 5-7 years. A fuel that hasn't absorbed any moisture will easily last a good year. Too bad its hard to tell if it absorbed any moisture. When in doubt, buy a new gallon.
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