Re: Flaw with unfreezing stuck engine with hydraulics

Posted by Steven@nd on April 21, 2002 at 09:51:51 from (12.23.184.185):

In Reply to: Flaw with unfreezing stuck engine with hydraulics posted by Bob in SE Nebraska on April 21, 2002 at 09:35:16:

I agree. My way of dealing with stuck engines is this: First, check the oil - if there is water you have problems, if there is no oil you have problems, if it has oil, good. Then I remove the spark plugs - if there is any major rust on any of them I remove the head to inspect things. If none of the spark plugs have rust on them I remove the valve cover to be sure that ALL the valves are loose to avoid a bent pushrod if the engine does come loose. If all valves are loose I then pull the tractor on gravel or grass with another tractor and ease the clutch out while in 4th gear (or 1 gear below road gear). I proceed to disengage and engage the clutch about 10 times - if the engine hasn't come loose by then It needs to be taken apart to see what is making it stick. I have had 3 stuck tractors this year and the 2 I have kept have had to been taken apart to unstick - resulting in broken sleeves and broken pistons to get them loose even at that point.

Hydralic pressure works for single cylinder engines like the stationary engines I also work on. When you have multiple cylinders and more than 1 is stuck then you risk bending connecting rods or breaking the crankshaft.

Steven

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