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I abosultly concur with all that you just said. That is exactly what is happening, it "leaks " down" the boom sags, but there is no external leak at all. That is why I suspected the piston cylinder seal imediately. I have looked very closely at the piston and the score marks on it extend to the...

Fair enough & your help and experience has been very much appreciated. My current quandry is do I lightly hone the front edge of the cylinder & put it back to gether or do I do the responsible / wise thing and replace the piston. One way or the other I should get a better feel if I put it back...

Ouch again, The advice I ask for is not always easy to listen to. It was "sagging" on me, the main boom that is. It still had enough power to function but it would not stay in place, I would have to continually bump the lift to even drive without it sagging to the ground. When I first...

So it goes on. As per the previous thread things all seem very tight on this tractor. I could not get the nut off of the end of the piston, so I had to get it to a large bench vise and use a breaker bar & 30mm socket . after removal I did find scratches on the piston, very small & I suspect...

Got it! Thanks for the help. I used penetrant and some heat and a good thumpin. Now I need a procedure to rebuild it so I don't muff it up! Thanks again, Scott

Ouch, I was hoping to avoid the press idea, It does have a zirc (sp ? ) fitting and it has been maintained, even recently, the end of the cylinder does move freely on the pin but the pin wont budge, If I could just confirm that it is a press ( or bent ) fit then I could confidently hit it a bit...

I need to know how to remove the pin that holds the cylinder in the main boom of a BH65 back hoe. I have removed the bolt but the pin wont seem to move. the cylinder is not under tension and the boom is supported. I am afraid to tap it any harder. Scott