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AC B Has A Frozen Engine

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08-28-2003 19:21:47

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My B sat for too long! Now, the 4-cylinder gas engine is stuck, but good. Cannot break it free by dragging the tractor, and then popping the clutch. Poured WD-40 down the sparkplug holes, and am waiting. Am I screwed? What to do?

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09-03-2003 18:44:21

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 Re: AC B Has A Frozen Engine in reply to Heywood, 08-28-2003 19:21:47  
If it is stuck real bad you might want to pull the head and take a look. pour wd or kroil and let it soak three or four days and then take a piece of oak or some other hard wood and carefully tap it with a hammer.If all else fails you will need to split the tractor and pull the crank to beat on the pistons. While it is apart you can then check the rest of the engine for any problems that are not evident.

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Mike L

08-29-2003 17:47:05

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 Re: AC B Has A Frozen Engine in reply to Heywood, 08-28-2003 19:21:47  
Heywood, An idea I got off of this forum a while ago that worked on my B. Pull the plugs out and spray in some PB Blaster then put your crank in and put a jack under it with just a little pressure on it. Spray the blaster in a little bit every day. It took about 4 or 5 days till it broke loose. It spins fine and seems to have good compression. Once I get the carb figured out it should run fine. Mine had been sitting for about 2-3 years inside a building so did not have alot of moisture in it.Good Luck. Mike L

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08-28-2003 20:29:58

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 Re: AC B Has A Frozen Engine in reply to Heywood, 08-28-2003 19:21:47  
pull the starter off and try baring the flywheel over. also a good idea to remove the valve cover and tap each valve stem down and watch it bounce, just to make sure it is not a valve that is stuck. if you bar an engine with a bad valve, it will bend. spray the guides with WD40 and test.

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David Maddux

08-29-2003 03:31:54

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 Re: Re: AC B Has A Frozen Engine in reply to steve, 08-28-2003 20:29:58  
Make darn sure it isn't the mag that is frozen up. Last winter I split a B in half just to find the reason the motor was locked up was the mag blew up.

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