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S.C. 08-27-2012 08:20:15 174.253.5.48 Report to Moderator	My Dad bought a WD-45 back in the mid sixties from the original owner and it has always had a knock in the pump. The only time it has done it with me is when I lifted the three bottom plow it would start knocking. I know Dad went to the A.C. dealer to talk to the mechanics and they told him that is common for those pumps to knock. I don't know if they were just telling him that to get rid of him. It is a hard knock and the first time it did it with me I shut it down. Thought a rod was about to fly out of the motor. I've been restoring this tractor for several years now and when I took the pump apart I was expecting it to be in bad shape but everthing looked like new. The only thing that had any wear was the springs in the pistons. The sides of the coils were worn and that was it. Put it all back together with new gaskets and o-rings. It works but I haven't plowed with it yet. It may just have been the linkage and the adjustments weren't set right for draft control. [Reply]   [No Email]
David R Inman 08-27-2012 09:17:55 150.135.210.55 Report to Moderator	Re: WD45 knock--in the hydrollic pump? in reply to S.C., 08-27-2012 08:20:15   Sounds alot like what he is now thinking. He's using a 3 point kit, and he says when he lifts he thinks it gets worse. Like you, the first times he herd it he was worried the rods where knocking, but as I say, checked that, so now I need to have him try the clutch as suggested. [Reply]  [No Email]