Posted by Don Wadge on August 25, 2007 at 09:10:11 from (204.112.131.55):
In Reply to: stuck ih engine posted by javan on August 24, 2007 at 19:45:41:
Well some say WD40 is garbage but I've had good luck with this method. Put at least a cup of WD40 (maybe PB Blaster or Kroil is better, a product called ReleaseAll would be good) in each cylinder. If the engine doesn't have a block heater you'll need one on it. Make sure the engine is full of coolant. Plug it in for a day or two, then unplug it for a day then plug it in again. Do this for about a week or longer. I've done several tractors this way. When the coolant heats up it will expand the cylinder wall before it heats the piston. This allows the WD40 to seep into the piston/cylinder wall area and break down the rust. This is why you need to repeatedly heat and cool the engine. The continual expansion and contraction allows the WD40 to penetrate. Then try to turn the engine. I've done this by removing the starter and using a prybar on a ring gear tooth (be careful here not to over-do it). It's best if you can get a pipe wrench on the front crank pulley. You also need to work the engine in both directions. Sometimes they come quite easily and sometimes more patience is needed. This method is where you start. If you don't succeed then pull the head so you can tap the pistons with a block of wood between. The prvious scenario will help much even if you have to remove the head. Once the head is off you will see the extent of your problem. If the cylinders actually got water in over a period of time there is not much you can do but tear it down. I would not recomend using diesel fuel and certainly never brake fluid.
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