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720 Gas Cap |
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Dave (NE)
Orange Level Joined: 12 Sep 2009 Location: Eagle Nebraska Points: 2144 |
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Posted: 13 Sep 2024 at 8:17am |
For some reason, over the past several months the gas cap on my 720 will not easily come off as it used to. I have to use considerable pressure to lift and remove it. Yes, the nob parts on the cap are lined up with the notches in the neck of the tank, so that is not the issue. Any ideas? Thanks, Dave
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Do not argue with an idiot. He will drag you down to his level and beat you with experience. Mark Twain.
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AC720Man
Orange Level Joined: 10 Oct 2016 Location: Shenandoah, Va Points: 4908 |
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It may be the gasket sticking? My 720 would be running fine and then shut off. 20 minutes later it would start and run for 5 minutes and shut off. I lifted the hood and noticed the tank sides were sucked in. Removed the cap and the tank took a big breath of fresh air and the tank sides returned to their normal shape. Replaced both of my 720 caps with one with a gauge . Problem solved.
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1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD
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Dave (NE)
Orange Level Joined: 12 Sep 2009 Location: Eagle Nebraska Points: 2144 |
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Yeah, its like the cap shrunk up or something. Hot or cold, it doesn't want to easily come off. Crazy thing!
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Do not argue with an idiot. He will drag you down to his level and beat you with experience. Mark Twain.
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Herb(GA)
Orange Level Access Joined: 15 Sep 2009 Location: United States Points: 1034 |
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I have filed the outside of the tank opening to reduce this tight fit. First, to be on the safe side I plugged the tank opening with clean rag. Herb(GA)
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Dave (NE)
Orange Level Joined: 12 Sep 2009 Location: Eagle Nebraska Points: 2144 |
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Yeah, I was thinking about doing that on the outside of the tank. Or, perhaps a wire wheel in my drill and do the inside of the cap.
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Do not argue with an idiot. He will drag you down to his level and beat you with experience. Mark Twain.
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Gary (sw Wis.)
Silver Level Access Joined: 12 Sep 2009 Location: S.W. Wis. Points: 205 |
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If it's plastic you might try leaving it off for a month or so. Remove it completely not just loose, need to get it away from the gas. That works on chain saw caps.
Edited by Gary (sw Wis.) - 21 Sep 2024 at 7:44am |
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190XT - D17 - D14 - WD45 w/loader - WD - (2)B110 - 616H - 610 - B-208 - WD with 190 Mounted Corn Picker - All Crop 60
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Dave (NE)
Orange Level Joined: 12 Sep 2009 Location: Eagle Nebraska Points: 2144 |
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Yes, it is plastic. So, keeping it away from the gas fumes will let it expand back out?
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Do not argue with an idiot. He will drag you down to his level and beat you with experience. Mark Twain.
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Gary (sw Wis.)
Silver Level Access Joined: 12 Sep 2009 Location: S.W. Wis. Points: 205 |
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Yes, I do it with chain saw caps all the time. The chain saw cap fit inside the tank and your mower cap go over the neck but I think it's worth a try.
One more thought is the tank plastic? If so it may have expanded. I would like to know if it works. Edited by Gary (sw Wis.) - 21 Sep 2024 at 4:53pm |
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190XT - D17 - D14 - WD45 w/loader - WD - (2)B110 - 616H - 610 - B-208 - WD with 190 Mounted Corn Picker - All Crop 60
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Dave (NE)
Orange Level Joined: 12 Sep 2009 Location: Eagle Nebraska Points: 2144 |
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Tank is not plastic.
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Do not argue with an idiot. He will drag you down to his level and beat you with experience. Mark Twain.
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