9n Hydraulics weak

I just got a 9n. Hydraulics try, but won't lift anything. Changed fluid. No change. Took off right side port, no fluid coming from cylinder and piston up above. There is a slow drip coming from the cylinder. I guess my question is if that is normal. If there was a leak up there I figured I'd see a lot of oil. Not a drip every second or two. My thought is to change the safety/relief valve next, mostly because it's the cheapest of what's left. Any advice is appreciated.
 
You just contradicted yourself; "...no fluid coming from cylinder and piston up above. There is a slow drip coming from the cylinder. I guess my question is if that is normal". No, no oil whatsoever should be leaking. So, like Bruce said, put a load on the rear lift like an implement or you can chain down the arms. Start tractor, engage PTO, raise load to top of stroke, shut down tractor and leave lift touch lever alone; leave it the raised up position. Now, look up to hydraulic cylinder and look closely for ANY signs of oil seepage. If so, chances are great that the piston and/or cylinder need to be replaced. If the system won't hold the load UP for days, weeks, months it is in need of repair. If real bad, the load will drop in a few minutes or hours. You are new so get these essential manuals, SEE PICTURE. The I&T F-04 Manual and a MPC (Master Parts Catalog) are very important to own. A 9N/2N Service Manual and Operator's Manual are helpful too. You best know SAFETY and what the do's and don'ts are before jumping into things and breaking something or injuring yourself. There is also a good DVD available on how to repair your 9N hydraulic system -search STEINER TRACTOR -Wrenching With Rachel. Now, the original hydraulic cylinder piston had three steel rings like your engine pistons. Later, Ford improved that design with a piston that used a rubber O-RING and a leather back-up washer/wiper. The steel-ring piston would often wear grooves in the cylinder wall especially when the system was low on oil. The Ford N-Series Tractor uses the same sump for not only the hydraulic lift but for the transmission system lubrication so guess where the oil is going to go first. Once the cylinder wall gets worn/grooved out, you will have seepage/leaking issues. Be aware too that the 9N/2N system/linkage is different than the 8N and NAA systems. Your top cover secures the cylinder assembly and is held on by four bolts. You must know how to properly remove the top cover so READ the manuals FIRST. You do not remove the four bolts that hold the cylinder assembly on UNTIL you have the top cover completely off and on your workbench. The 9N/2N linkage has 'wishbone bracket' that has to be released FIRST before lifting the top cover off. READ the MANUALs, WATCH the DVD, BEFORE you do any wrenching. I can direct you to another Ford N-Series Tractor club web site with an article too that will help as well -email me if interested.

FORD N OWNER ESSENTIAL MANUALS:
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[i:654c4848f0][b:654c4848f0]<font size="4">Tim *PloughNman* Daley(MI)</font>[/b:654c4848f0][/i:654c4848f0]<table width="100" border="1" cellpadding="0" cellspacing="0" bordercolor="#000000"><tr><td height="25" colspan="2" bgcolor="#CC0000">
<font color="#FFFFFF" size="3">*9N653I* & *8NI55I3*</font>​
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i don't know what's in your post that this site doesn't like, tim, but the OP will not see your post because he's using modern view and it has been censored by the site for some reason.
 
Thank you for all this information. I'm realizing I wasn't very clear in my first post. I have bought the I&T manual and the original 9n manual. I'll look for the MPC. I have watched some videos on you tube on removal, rebuild, and replacement of the hydraulics. It looks tricky, but not too bad. I thought if the cylinder and or piston were bad, there would be a lot more oil blow by. If a drip every second or two is indicitive of a bad cylinder or piston, I'll order those too. So here is some more info that may help. There is a brush hog attached to the tractor. It won't lift it. At all. It seems like it's trying, but it won't move off the trailer bed. When I looked through the right side with the PTO engaged, the oil wasn't moving. Not churning, no turbulence. No movement. Whether lifting, or not. One other thing I noticed. When moving the lift lever, when it was about half way up from the bottom, the control wishbone inside stopped moving in. Like it had reached it's limit. I tried pushing it in further by hand, and it didn't budge. Don't know if that's normal either. I appreciate all the help.
 
No, it's the owners/admins on this site that don't like 'competition', for lack of a better word, as I can't fathom any other reason, and will not allow me or any one else to post the web site url or any LINK that contains their address, modern view or classic view, it makes no difference. In my opinion, there is no 'competition' involved whatsoever; it's not a friggin' contest! It's all about vintage Ford Tractors, sharing information about them, and helping others mostly 'newbies' with their recently acquired machines. If you doubt, try posting their web url address in a thread and see what it gets you...

PS -In the English language, it is correct to capitalize Proper Nouns.

TPD
 

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