Ford 1900 clutch issue

[cbrab]

Which part do you mean? Here's a couple pictures of the adjustable rod that pivots with the pedal and throws the bearing forward inside the bell housing

 

[a49deere]

How thick was your drive disk?

 

[cbrab]

Very thick, clutch must've been replaced recently.

 

[Jim.ME]

Remove the throw out bearing and carrier. Check that the pins that hold the throw out bearing fork to the shaft have not sheared off or have bent.

 

[cbrab]

I noticed that theres only 1 pin on the fork, the other ones missing, but it looks like it's still functional. The fork can get misaligned and cause issues with the throw?

 

[Jim.ME]

I noticed that theres only 1 pin on the fork, the other ones missing, but it looks like it's still functional. The fork can get misaligned and cause issues with the throw?

Yes. If not pinned securely in the correct place it will not move the throw out bearing correctly.

The parts book calls for 2 each M6 x 32 slotted pins (Metric roll pins). NH part number SBA030300632. Looks can be deceiving, I would get a couple and replace both of them, you will never be any closer to them.

 

[cbrab]

So it turns out that both pins in the clutch fork were broken allowing the fork to move in ways it shouldn't and throwing off its ability to move the bearing correctly. I believe that's the main, if not the only culprit to the issue I was having. Can I just use some heavy fence wire as retaining clips for the pins?
Another thing though is my book says from the face of the flywheel to the top of the pressure plate release levers (the tops of the bolts that is), it should measure 4.44". I have the pressure plate and clutch disc down on the shop floor and I'm measuring over 5.5" from floor to top of the release levers. Am I just measuring this wrong or is it possible that the levers are that far off? I know those adjustment bolts don't have enough thread to make up for that 1" difference.

 

[Jim.ME]

I believe your measurements are made with the clutch and pressure plate bolted to the flywheel to put the fingers in the clutch engaged position, most I am familiar with are set when bolted up to the flywheel.

Yes, you can use wire through the pins as a safety.

Did you get the metric pins as called for, not imperial sized pins? The correct pins should fit tight. Sometimes you can drive a smaller pin inside the one called for to expand it a bit more, some applications call for doing that, so it is not unheard of.

 

[the tractior vet]

I recently bought a Ford 1900 with the dual stage clutch. I should say I noticed the gears liked to grind when shifting, I thought it was just me getting used to having to idle down and wait a second before shifting and I'm still unsure if it was my error or something in the tractor. My second day using it I got it stuck plowing in the morning. I dug it out and parked it. That evening I went to start it up and I couldn't get it into gear, it would just grind. The clutch pedal had no resistance except for a bit at the last inch of travel before bottoming the pedal out. So I pulled it home and assumed I would have to split the tractor and fix something with the clutch. Then I started reading how often these clutches get stuck against the flywheel and thought I'd better do my best to figure out what's going on before splitting it.
Viewing through the peep hole on the side of the housing I can see the fork throwing the bearing forward but the throw hardly makes the release fingers on the pressure plate move (I can only see the side view of the pivoting point of the fingers) as though the fingers are already in the depressed position. Is it possible that the clutch froze to flywheel in such a short time period having used it earlier that day? Anything I should try to pry against through that hole or through the starter mount hole?
Any advice would be greatly appreciated before I open this thing up.

 

[the tractior vet]

I did a clutch job on on of them years back . what a pain in the drain . At times a old Oliver dealer would call me to come up and help out when they got buried . at that time i did NOT own one metric wrench . I had to go BUY everything in metric .. Nothing on that job went easy everything fought me . Back then you could not buy a pressure plate assembly , everything was piece meal , You had to BUILD that pressure plate and it had to be done on a fixture and everything had to be set to spec's by the set up gauges . Welp we did the job and it worked and i told the dealer to NEVER call me again when it involved one of them again . He had to borrow the fixture from the ford dealer and the BOOK . He use to get me into some of the worst jobs one could ever have nightmare about.

 

[Vito]

I did a clutch job on on of them years back . what a pain in the drain . At times an old Oliver dealer would call me to come up and help out when they got buried . at that time i did NOT own one metric wrench . I had to go BUY everything in metric .. Nothing on that job went easy everything fought me . Back then you could not buy a pressure plate assembly , everything was piece meal , You had to BUILD that pressure plate and it had to be done on a fixture and everything had to be set to spec's by the set up gauges . Welp we did the job and it worked and i told the dealer to NEVER call me again when it involved one of them again . He had to borrow the fixture from the ford dealer and the BOOK . He use to get me into some of the worst jobs one could ever have nightmare about.

When I replaced my two stage on a Ford 961 I took it to a local dealership to have them set it up to spec.

Vito