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Re: 740 Power steering

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01-29-2013 03:53:41

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I believe that most are removed due to leaking cylinder. They will usually leak because dirt accumulates on the underside and starts to wear the chrome at mid point. then it gets slowly worse until it gets pitted and ruins the seal repair is expensive because it needs to go to a good shop where they cut off the back end, reseal and weld it back together. Yours sounds like a problem with the control valve at the front end. It sounds like it may be bound with hardened grease, so a partial dis-assembly may be needed to free up the piston inside that needs to shuttle freely back and forth. Another possibility is the grease fitting on the back of the control valve. The fitting needs to be much shorter reach than a standard grease fitting or it will impinge on the piston keeping it from moving. I recently had one that was leaking at the main cylinder just a little, so I smoothed up the rough part with emery cloth, applied phosphoric acid to get at the rust, then applied a little epoxy, then smoothed it up real nice. Haven't seen any drip since.

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01-29-2013 23:07:22

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 Re: 740 Power steering in reply to showcrop, 01-29-2013 03:53:41  

Hope these pictures help with figuring out my steering problems.

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