Reply To: Locked up 1929 Johnson V-45

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December 2, 2019 at 1:07 pm #188428
LLOYD LAUTNER
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    Antifreeze doesn’t boil in the crock pot and doesn’t need to stay in long. A few hours or overnight is good. Trick is to cycle from hot to cold repeatedly as Chris-p noted. And tap on the pistons through the spark plug holes with a wood dowel or aluminum rod. I don’t like the grease gun method. Awful mess to clean up even if it works and the pressure can cause damage as noted above. Heat, vibration and lubrication are the best ways to free up stuck parts.