Really need help with 1715 (1520 same clutch) clutch issue.

   / Really need help with 1715 (1520 same clutch) clutch issue. #1  

Kosmo

Silver Member
Joined
Apr 23, 2008
Messages
119
Location
NE Pa
Tractor
Ford/NH 1715
Hi all,

I tried this post over on the general forum with no luck so I hope I can find some help here. I've just got back to working on my 1715 tractor clutch (which has the same clutch as the 1520) after about 6 months of sitting. The thrust bearing was shot and since i was splitting the tractor I had the whole clutch sent out to a popular (on this site) rebuilder last spring. Anyway I got a replacement kit and bolted up the tractor again and decided to check operation before I started putting things back together and noticed that I didn't seem to have any contact of the thrust bearing with the clutch fingers until only the very last quarter inch of pedal travel. The adjustment screw on the linkage is also at its limit. I tried rolling the tractor in gear and pushing in the clutch and still doesn't release when I push the clutch pedal down. It will roll in neutral. I called the rebuilder and he indicated that I was sent a surplus Jeep clutch, with thrust and pilot bearings, that matches out with the original FNH as a replacement. I could tell it was not the original because I had to ream out one of the sets of mounting holes on the pressure plate to get the bolts through. Anyway I asked if the problem might be the finger height adjustment and he seemed to think not. He suspected that I placed the wrong face of the clutch disc to the flywheel. So I just got done splitting and remounting the clutch assembly with the opposite face of the clutch disc facing the flywheel and then bolted up the tractor again. Now there is absolutely no contact of the thrust bearing with the fingers, that I can detect, when the clutch pedal is depressed. Anyone have any idea what my issue is? My only feeling is that the clutch finger height is not to spec, contrary to what the rebuilder thinks. I'm kind of at my wits end with this and am starting to regret not just buying the way more expensive oem replacement clutch. Thanks for your input. Oh yeah, and if anyone knows the clutch finger height spec, please chime in because the manual doesn't give it. It only says to check it using tool # FNH 1300. I'd really like to check it before sending the clutch back. Thanks again for any input at all.
 
   / Really need help with 1715 (1520 same clutch) clutch issue. #2  
Have you tried going to your local NH dealer and see if you can talk to a mechanic? My local dealer let me do that, and it helped a lot.

Best of luck man!

Chris
 
   / Really need help with 1715 (1520 same clutch) clutch issue. #3  
I would have a tendency to agree with you on the fingers of the pressure plate being at a different height and so therefore the throw out bearing and fork are not reaching them. The only other thing that would come to mind is the replacement pressure plate used a different throw out bearing making it closer to the fingers on the pressure place. If it were me I would send it back and get the OEM pressure plate for it. This sounds kind of like a red neck repair to me
 
   / Really need help with 1715 (1520 same clutch) clutch issue.
  • Thread Starter
#4  
I would have a tendency to agree with you on the fingers of the pressure plate being at a different height and so therefore the throw out bearing and fork are not reaching them. The only other thing that would come to mind is the replacement pressure plate used a different throw out bearing making it closer to the fingers on the pressure place. If it were me I would send it back and get the OEM pressure plate for it. This sounds kind of like a red neck repair to me

No, I checked the thrust and pilot bearings with the old before I installed them and the were physically identical. The rebuilder was highly recommended on these boards for their work and were very receptive when I talked to them and told me to send it back if the issue was not resolved. I'd still like to get a spec for that finger height if anyone out there has it or the FNH 1300 tool/guage and could measure it for me. I don't really have a NH dealer nearby.
 
   / Really need help with 1715 (1520 same clutch) clutch issue. #5  
No, I checked the thrust and pilot bearings with the old before I installed them and the were physically identical. The rebuilder was highly recommended on these boards for their work and were very receptive when I talked to them and told me to send it back if the issue was not resolved. I'd still like to get a spec for that finger height if anyone out there has it or the FNH 1300 tool/guage and could measure it for me. I don't really have a NH dealer nearby.


I am sorry I probably did not explain myself correctly. I meant the jeep pressure plate they sent you could have used a different throw out bearing when it was installed in a jeep instead of a tractor. It is to bad that you do not have your original pressure plate to compare to the one they sent you. Maybe you could find a OEM one to compare the pressure plate to and see if the fingers are at the same height.
 
   / Really need help with 1715 (1520 same clutch) clutch issue.
  • Thread Starter
#6  
I am sorry I probably did not explain myself correctly. I meant the jeep pressure plate they sent you could have used a different throw out bearing when it was installed in a jeep instead of a tractor. It is to bad that you do not have your original pressure plate to compare to the one they sent you. Maybe you could find a OEM one to compare the pressure plate to and see if the fingers are at the same height.

Gotcha, thanks for the clarification and the response. Still hoping someone can chime in here with that spec.
 
   / Really need help with 1715 (1520 same clutch) clutch issue.
  • Thread Starter
#7  
Think I found the finger height spec. 2.13". If anyone can confirm I'd be interested in hearing. Now I've got to remount and build some kind of measuring device to check it. Anyone can chime in here with any advice. I think if it is way off I'll send it back and have the shop do the adjustment since I don't think I can make a real accurate measurement. Also confirm that this is the appropriate pressure plate.
 
   / Really need help with 1715 (1520 same clutch) clutch issue.
  • Thread Starter
#8  
So I checked the finger height crudely ( with a straight edge and tape measure I measured from the flywheel to the straight edge which I laied across the top of the tirangular pressure plate frame and then from that to the fingers) after remounting and it comes up about .22 in. short of the 2.13" spec I found. Called the shop and they sounded very confused that the spec was off by so much and recommended sending it back which I did with a note to make sure the application is correct for the 1715 and if so to adjust the finger height since I don't have the accuracy to do the adjustment. Will follow up with results. Man, this has been a cluster$%^*&.
 
   / Really need help with 1715 (1520 same clutch) clutch issue.
  • Thread Starter
#9  
Shop got back to me and confirmed that the finger height was way off. They were very apologetic. Hoping to get my clutch back in the next couple of days so I can get this thing ready for spring. Word to the wise, even though many on this board profess that this spec should be set at the manufacturer or rebuilder and not to worry about checking it, CHECK IT! If you got the proper measuring gauge or can build one easily you can adjust it yourself, but do it before buttoning it up. I wasted a whole lot of time here which I could have avoided if I had checked it.
 
   / Really need help with 1715 (1520 same clutch) clutch issue. #10  
Shop got back to me and confirmed that the finger height was way off. They were very apologetic. Hoping to get my clutch back in the next couple of days so I can get this thing ready for spring. Word to the wise, even though many on this board profess that this spec should be set at the manufacturer or rebuilder and not to worry about checking it, CHECK IT! If you got the proper measuring gauge or can build one easily you can adjust it yourself, but do it before buttoning it up. I wasted a whole lot of time here which I could have avoided if I had checked it.


One other thing. Just because it comes from a reputable place of business does not mean they cannot make a mistake.

Glad to hear you got it figured out.
 

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