Ford 1700 clutch adjustment

[284 International]

The holder/bearing can slide forward and return to normal position.

Maybe I don't understand how these work. I thought the throwout bearing moves toward the front of the tractor when the clutch pedal is depressed, and that there is something keeping it from sliding away from the engine.

 

[JC-jetro]

Maybe I don't understand how these work. I thought the throwout bearing moves toward the front of the tractor when the clutch pedal is depressed, and that there is something keeping it from sliding away from the engine.

I'm kind of perplexed with the question. Take a look at the link below. that might make it may be more clear. release /throwout bearing move ofrward just enough to push the fingers toward the flywheel enough to release spring pressure to disengage the clutch.



JC,


File:Clutch illustration.jpg - Wikipedia, the free encyclopedia

Clutch - Wikipedia, the free encyclopedia

 

[284 International]

I think we're saying the same thing. The throwout bearing moves forward, against the fingers of the pressure plate/diaphragm. That releases the spring pressure on the friction disk between the flywheel and pressure plate, causing the clutch to be disengaged.

I think there is something binding the throwout bearing partway forward, or disengaged, and keeping it from sliding toward the transmission end of the shaft, and allowing full spring pressure to the friction disk.

 

[JC-jetro]

I think we're saying the same thing. The throwout bearing moves forward, against the fingers of the pressure plate/diaphragm. That releases the spring pressure on the friction disk between the flywheel and pressure plate, causing the clutch to be disengaged.

I think there is something binding the throwout bearing partway forward, or disengaged, and keeping it from sliding toward the transmission end of the shaft, and allowing full spring pressure to the friction disk.

in normal situation with the clutch out the bearing holder has to be all the way back against the two tab on the holder where the spring is attached. is it resting there or not?

JC,

 

[284 International]

I can't tell, and am not around the tractor to check. The machine has a loader, and the upright post goes across part of the sight hole, so I can't see as much as I should. I can check this evening, but I'm not sure if I'll be able to see that far back.

 

[284 International]

I have taken a photograph of the throwout carrier with the pedal adjusted fully out. It's clearly in contact with the rod.

One of the fingers has clearance between it and the throwout bearing. Not lots, but clearly some: 2-3mm (not quite but almost 1/8"). I apologize for the poor photograph, even on macro I couldn't get the camera to focus properly.

 

[JC-jetro]

yes, that's what I wanted to see. With clutch out even with one milliliter of gap there is still no interference. if the gap is too small when tractor is cold then I can see as things heat up finger and bearing might actually slightly touch due to expansion and that might cause the slight occasional slippage. I'd try to manipulate adjustment externally however I can to increase that gap and visually inspect it afterward. I'd have the cover off and when the clutch slips I do a visual. I know the tractor has not ran long enough to heat up. The pressure plate spring might not be up to snuff to cause enough friction or you have some glazing on the disk or pressure plate that reduces friction factor. The rest of the stuff look like how it should be and you did not need to split or take the steering column off. I think you eventually will gain on this thing with the addition of a starter.

JC,

 

[284 International]

This is with the clutch pedal disconnected and the bellcrank manually moved. You can see there is plenty of room. Even prying on the bearing with a prybar, though, I can't get clearance between the bearing and the fingers.

 

[JC-jetro]

well, that's not good. now, within the few milliliter that you have can you mover the bearing holder for and aft easily?

Now you realize there is 3 fingers that the pressure plate has and you have just verified one. With the starter removed and glow plug loosened you might turn the flywheel some to see if all fingers have the same gap to the bearing. The pressure plate has some total of 6 bolts that attaches it to the flywheel. Although unlikely, is there possibility that a bolt of two is lose or come off causing pressure plate not to be perfectly parallel to flywheel? you can verify the bolts and even tighten them with off set box end wrench. if none of these bear any fruits I then think the pressure plate has spring failure or is warped causing the fingers geometry change. That result will force you to a tractor split. bright side of it that you have on line (Fleabay) sources that you can by the whole assembly less than $200.

JC,


Ford 1000 1310,1500,1700,1900 shibaura tractor clutch | eBay

 

[jones6780]

Well just my 2 cents worth.... I can see clearance between 1 presure plate finger and the throw-out bearing. Rotate the engine and check the other 2 fingers. As the clutch wears the presure plate moves forward and the 3 fingers move backwards. If you do not have clearance then you do not have full pressure on the clutch and the clutch "could" slip. If you can not solve the clearance problem or, if you have clearance and it still slips, then I would split the tractor and replace the clutch, presure plate, throw-out bearing and pilot bearing.

Just saw JC's post on the presure plate bolts. That would be good to check that they are tight.
Russell