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3000 three point hiccup


 
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J. J. R.
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PostPosted: Tue Jun 04, 2013 2:11 pm    Post subject: 3000 three point hiccup Reply to specific post Reply with quote

I used my 1975 3000 on the finishing mower the other day and the three point hitch tends to hiccup. Both at an idle and with RPM’s. I have done cylinder and piston changes one hundred series fords that did the same thing and I was wondering if this 3000 is similar. Also is there a valve someplace that could be the problem instead. The reason I ask is because the lift arms don't seem to leak down much when parked. Even over winter storage. All the older fords I have worked on leaked down almost overnight, that's why I am suspecting something else could be the problem. Any help would be appreciated.
 
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souNdguy
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PostPosted: Tue Jun 04, 2013 2:30 pm    Post subject: Re: 3000 three point hiccup Reply to specific post Reply with quote

yes.. it's a similar unloading valve type system as the 55-64 used.

just to be clear.

you are sayingthe lift bobs or hunts, but does not leak down ?
 
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J. J. R.
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PostPosted: Tue Jun 04, 2013 5:34 pm    Post subject: Re: 3000 three point hiccup Reply to specific post Reply with quote

With a load on the arms they seem to bob much like when the cylinder leaks and the pump reacts every few seconds to bring it back up. They will leak down a little with a load on the arms and parked, but not when the arms are up and nothing attached. Sounds like the piston seals are leaking, but only with a load on it.
 
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souNdguy
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PostPosted: Wed Jun 05, 2013 4:11 am    Post subject: Re: 3000 three point hiccup Reply to specific post Reply with quote

ok.. with no load. even a slightly worn seal can hold the simple weight of the arms up.

if it leaks and bobs with load.. then it's probbaly simple leakdown and circuit regeneration.

while there are a couple places for leaks. cyl mouth is generally a big one.

can you get a mirror on a stick and peer in with a load on it and see how much oil is exiting the cyl bore?
 
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J. J. R.
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PostPosted: Sat Jun 08, 2013 6:23 pm    Post subject: Re: 3000 three point hiccup Reply to specific post Reply with quote

Not sure I can find a place to look in, but I can remove the cover and replace the piston seals and clean up the bore. Thanks for the help.
 
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souNdguy
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PostPosted: Sat Jun 08, 2013 6:31 pm    Post subject: Re: 3000 three point hiccup Reply to specific post Reply with quote

fill cap?
 
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J. J. R.
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PostPosted: Sat Jun 15, 2013 6:47 pm    Post subject: Re: 3000 three point hiccup Reply to specific post Reply with quote

Oh Yea, What a dummy I am. Thank you. Yep cylinder is leaking. I have new seals on order.

Thanks again
 
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souNdguy
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PostPosted: Sun Jun 16, 2013 5:52 pm    Post subject: Re: 3000 three point hiccup Reply to specific post Reply with quote

not too hard of a job. have fun.
 
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