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Ford 9N, 2N & 8N Discussion Forum
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re problem with lilft on 9n

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abjahnke

10-24-2004 22:58:17




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here we go again, i havea 9n that i bought about a year ago, the guy said he had a new pump and piston put in just prior to delivery. he was about 10 days late because i specified that the lift had to word well and i was using it to haul wood in a small bed i had built for it. plus i was going to us it for blading snow. the tractor was in excellent condition, started all the time, but after 8 months it started not holding loads, the loads max were 600 lbs at most and only on occationally. just a great tractor. i grew up on a farm and i have driven just about every tractor used for regular 200 acre farmers. we did some of our own maintenence ,except the tough stuff. ok here is my problem. about 3 months ago my hydraulics started clicking , and holding loads are now about nil, when i put the tractor in gear, it doesnt matter which gear it starts clacking in the hydraulic area. it lifts the loads it just doesnt hold. and im afraid its lifting power will dwindle. i am afraid when i open it up stuff is going to fly out all over/ i also have lifting problems. now what i did was order a video tape from Y.T. toget an idea if i can do this.my question is this is. how will i know if the pump needs a whole overhaul, or a couple of gaskets or just a tensioning of a spring? Dell, Zane, all you guys to many to mention without offending, please help me. i have the IandT FO ford manual for the 9n/2n/8n. plus i collect alot of inform. from everyones writeins. please help , its too good a tractor to trade, and i hear some of these guys say they fixed their hydraulics for 60 - 100 dollars. but i am not a very well person and cannot afford the energy to tear apart and put it together several times. i would like to get it right within the first year. thanks again. ab jahnke

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Russ in SoCal

10-25-2004 02:13:42




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 Re: re problem with lilft on 9n in reply to abjahnke, 10-24-2004 22:58:17  
a j,
Sounds very familiar. I was on the same road a couple months ago.
Start with the most likely suspects. Look at the fluid. Is it milky from water contamination? Remove the old RH inspection plate (with the dipstick). Start the tractor with a load on the lift and using a mirror and light, look up and see if the piston is leaking. Look down at the oil and see if it"s swirling near the pump. If oil runs out when you remove the inspection plate, it means there is too much oil in there. A good guess says the piston was replaced without honing the cylinder. You want a smooth cylinder, NAA piston with neoprene "o"ring and leather backup washer. Try to find out what oil was used. I replaced my piston and honed the cylinder, but with the Ford 134 oil, the lift was jerky and would leak down in a few minutes. Changed to GL-1 and it"s not completely smooth and quiet, but acceptable for now and it holds for at least 48 hours. Too much month at the end of the money to mix in a pump rebuild right now. Hope it"s no more than a piston and bad oil. Good luck.
Russ

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Dell (WA)

10-25-2004 02:03:08




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 Re: re problem with lilft on 9n in reply to abjahnke, 10-24-2004 22:58:17  
Ab..... ....first things first. Hydraulic pump doesn't care what gear your tranny is in. All hydraulic pump cares about is PTO shifter engaged.

As I understand, you are worried that the hydraulic pump is clicking and it no longer lifts as much as it used to.

Heres what you do. Remove the 6" round dipstick access plate. Try to lift anything and looks for "squirts". There are 2-principle sources of squirts; the hydraulic piston with the dogbone or the standpipe that transfers pump pressure from the bottom of the pump to the control lever at the top. Try and tell us where the squirts are coming from. (use flashlight)

Iff'n you have no squirts, then your problem is most likely the pump valves and you will have to drop the pump for a rebuild..... .....Dell

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Russ in SoCal

10-25-2004 02:15:39




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 Re: re problem with lilft on 9n in reply to Dell (WA), 10-25-2004 02:03:08  
I type too slow.
R



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