Clutch Throwout bearing combination

O

Orca62

Member
Hi,I have a 1949 Ford 226 inline 6 cylinder engine with a 10 flywheel and 10 inch clutch pressure plate. The engine is mated to a 1934 Ford V-8 transmission. The factory 1934 Ford throw out bearing and bearing collar assembly on the transmission appears to comes up short ( 3/4 inch) when I try to depress the clutch to disengage the engine from the transmission. Does anyone know what throw out bearing collar I need to make up the distance between the bearing and the pressure plate fingers? Thanks for any help, Don.
 
Older gearbox with long lever gives you a less good pedal to clutch ratio...
Not by chance wrong type of pressureplate or a very thick clutchplate...
Just asuming you have tried to adjust it and still can´t make it work.
 
Hi, The engine transmission combination is in a sprint car. The throw out bearing arm extending out of the bell housing is attached directly to a church pedal with no linkage. When I look into the inspection hole in the top there is about 3\4 of an inch plus gap between the face of the bearing and the pressure plate fingers. When I try and depress the clutch the travel I have barely touches those fingers. I assume I have the wrong throw out bearing collar in there and need one that will put the bearing face closer to the fingers to allow me to depress the pressure plate. Any ideas as to what throw out collar may work??
 
Custom project. You may have the right part and need to create an adjustable pedal linkage set-up to make it work. Disconnect the pedal and while looking through the inspection hole with a pair of vice grips see if you can rotate the clutch pedal rod far enough to make TO/clutch finger contact.
The don't move a great distance and the adjustment can be a "fine tuning" event.
 
Is there a reason the pedal is attached in the position you have it? Why not reposition it to work?
 
As flatheadmurre mentions above, the older boxes (1934 in your case) have a longer throwout lever. Note in the picture below how long the '33-'34 lever is compared with the shorter levers on the later boxes. The LONG lever (as in your case) requires more clutch pedal travel to move through it's "working distance" than a shorter lever would. It just might be that a shorter lever will solve your problem. DD

257648
 
Hi trying to sort this problem out I have the following. 1933-34 transmission that came with the throw out bearing and hub. I have a 10 inch Flywheel that I replaced the ring gear as it was chewed up. The engine, plate and bell housing is a 1949 6 cylinder H engine. The pressure plate that came with the motor appears to be a 1932 -40 3 finger style that has 3 bolts that extend above the 3 fingers (found a photo on Mac's site) . The clutch arm I have is modified. It only has the part that slides over the shaft. A piece of steel was welded on top and extends to the left several inches and a clutch pedal has been welded to it. Everything bolts up correctly but when I depress the clutch pedal the travel of the throw out bearing is good but it comes up short by just touching the 3 fingers at full travel and cannot depress the fingers allowing the pressure plate to lift clear of the disc. It appears I need a longer throw out bearing hub assembly that will put me closer to the 3 fingers when at rest. As I said there is about 3/4 of an inch gap between the fingers and the throw out bearing face. Does someone have a full height measurement of say a 1936 and newer hub/bearing assembly? Possibly it is longer and may solve my problem.
 
Again, why don't you just reposition the location where the clutch pedal attaches to the shaft? Rotate the shaft to a position where the retracted pedal positions the throwout bearing near the pressure plate fingers. There is no reason you need to leave the pedal attachment point where you have it. The idea is to position the throwout bearing in the proper position in relation to the pressure plate. You may need to redrill the piece that is pinned to the shaft or cut and reweld the location of the pedal assembly. You also need a clutch pedal retracting spring and a stop to keep the retracted clutch pedal in the proper location.
 

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Hi, I was able to look at all the options I had with this mis- matched clutch assembly. It looks like a Model A Ford throw out bearing is just about the correct length to allow the throw out bearing assembly rest free with about 1/4 inch gap between it and the fingers of the pressure plate. And when I depress the pedal it should have enough travel to release the clutch disc. I will post when I get it in there. Thanks for all the help.
 
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