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Possible KBL Stuck Valve

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dave tuttle
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Possible KBL Stuck Valve

Post by dave tuttle » Mon May 31, 2021 9:26 pm

1) How to determine if a valve is stuck?
2) How to determine which valve is stuck?
3) If indeed a stuck valve ....Best way to unstick?

Thanks and appreciate the help.
dave tuttle

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drrot
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Location: Three Lakes, WI
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Re: Possible KBL Stuck Valve

Post by drrot » Tue Jun 01, 2021 9:01 am

Pull the spark plugs. you can see the valves down the hole. Rotate the engine and look. If one is stuck spray it with PB Blaster slowly so it goes down the stem. Then try to tap the valve head lightly. If that don't work try it for a few days before pulling the head.
Jim Staib
www.finewoodboats.com


1947 Penn Yan 12' Cartopper WXH474611
1950 Chris-Craft 22' Sportsman U-22-1532
1957 Chris-Craft 26' Sea Skiff SK-26-515
1968 Century 17' Resorter FG-68-174

dave tuttle
Posts: 49
Joined: Mon Aug 24, 2009 4:26 pm
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Re: Possible KBL Stuck Valve

Post by dave tuttle » Thu Jun 03, 2021 9:50 am

Many Thanks and greatly appreciated. Will try and let you know what I found.

dave tuttle

dave tuttle
Posts: 49
Joined: Mon Aug 24, 2009 4:26 pm
Contact:

Re: Possible KBL Stuck Valve

Post by dave tuttle » Thu Jun 10, 2021 4:14 pm

Hello Drrot: Thanks for you help. My valves checked out fine.....I did a spark plug test and found two not performing. Put a new complete set of 6 J8C Champions in and my my my she has never ran better. Problem solved. Thanks again.

dave tuttle

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