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Wd stuck exhaust valves
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ToddnwIl View Drop Down
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Joined: 07 May 2013
Location: Illinois
Points: 289 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ToddnwIl Quote  Post ReplyReply Direct Link To This Post Topic: Wd stuck exhaust valves
    Posted: 09 Feb 2025 at 5:00pm
I've recently inherited a wd that used to run. Prolly bin 10 years or so. Got it turning over well and the carb cleaned. Still couldn't get it to run. Today I did a compression test. No compression on the middle two cylinders. So I pulled the valve cover and the exhaust valves are stuck open. Any old school tricks to loosen them without pulling the head.
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 20984 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 09 Feb 2025 at 5:33pm
Lots of penetrating oil from the top side. Get about 10 ft of nylon rope small enough in diameter to shove down inside the spark plug hole (5/16" ?) while the piston is at BDC. Have a knot tied in the rope so you don't lose it. Turn engine over by hand with all that rope coiled up inside. Rinse and repeat for the second cylinder.
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ToddnwIl View Drop Down
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Joined: 07 May 2013
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Points: 289 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ToddnwIl Quote  Post ReplyReply Direct Link To This Post Posted: 09 Feb 2025 at 6:04pm
Awsome idea!!! I'll give that ago. I knew their had to be an old school trick!!!
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Clay View Drop Down
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Joined: 11 Sep 2009
Location: Udall, Kansas
Points: 9523 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Clay Quote  Post ReplyReply Direct Link To This Post Posted: 09 Feb 2025 at 8:29pm
KROIL will help free them up. KREEN is even better than KROIL for stuck rings and valves.  
KREEN is made by KANO Laboratories, Nashville, Tn. 
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steve(ill) View Drop Down
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Joined: 11 Sep 2009
Location: illinois
Points: 83161 		Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 09 Feb 2025 at 8:39pm
besides the penetrant, tapping on the end of the valve can help SHOCK it.
Like them all, but love the "B"s.
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HudCo View Drop Down
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Joined: 29 Jan 2013
Location: Plymouth Utah
Points: 3664 		Post Options Post Options   Thanks (0) Thanks(0)   Quote HudCo Quote  Post ReplyReply Direct Link To This Post Posted: 09 Feb 2025 at 9:33pm
take the rocker shaft off and start tapping on the valves with a plastic or rubber hammer besides you will need to make sure allof them move smooth.     and you will need to replace the push rods that got bent when you got it to roll over  
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SteveM C/IL View Drop Down
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Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 8367 		Post Options Post Options   Thanks (1) Thanks(1)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: 09 Feb 2025 at 9:45pm
tap the stem not the retainer
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ToddnwIl View Drop Down
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Points: 289 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ToddnwIl Quote  Post ReplyReply Direct Link To This Post Posted: 4 hours 35 minutes ago at 7:56pm
Alittle update. The rope trick worked perfectly! We soaked them down really well. 20250210_180357.jpg20250210_180909.jpg
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