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  1. #1
    Brian bconwayls1's Avatar
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    Blown engine pics

    I picked this 01 GPR up for $300.00 a while ago, and I'm just now getting around to it. I thought it dropped the power valve, but it didn't. The screw holding it to the shaft backed out, allowing it to go down. Would the cylinder destroy itself like this with just the valve down, not even touching the piston?
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  2. #2
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    No, something let loose. Pistons don't self destroy, maybe something in the crank let go? Your positive the valve didn't hit the pistons? Mabe caught/ spun a ring on the port or pv? Was it starved for oil and tore the rings? Hope this helps.

  3. #3
    Brian bconwayls1's Avatar
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    Valve was untouched after closer inspection. Now that you mention it, I found an unattached oil line, that I thought I had pulled loose during tear down. It must be the culprit.Click image for larger version. 

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  4. #4
    TX21's Avatar
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    I have a cheap crank case set if you need one. Its going to need some help with a dremel but it will be useable. And if the pin is still there I think its safe and won't hurt anything just run like crap on the top end due to the valve being down.

  5. #5
    A child of five would understand this. Go get one. pierowman's Avatar
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    I would say oil line coming off is the number one reason these engines die.

  6. #6
    Brian bconwayls1's Avatar
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    Quote Originally Posted by TX21 View Post
    I have a cheap crank case set if you need one. Its going to need some help with a dremel but it will be useable. And if the pin is still there I think its safe and won't hurt anything just run like crap on the top end due to the valve being down.
    Thanks TX, but a new set arrived today

  7. #7
    powerstroke specialist mikegp's Avatar
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