I think I found the problem but….

Re: I think I found the problem but….

The 11” clutch was available as an option for taxi and heavy duty use for passenger cars.
The oil pan for the 11” clutch by then would be a 2 piece— a section of the pan in the bell housing area was removable to service the clutch.
If you have the normal passenger car oil pan it would need to be removed to service the clutch.
Most likely if there is a problem with the clutch causing you stated problem of not moving you should be able to move the disc around with your fingers.
Is there really a disc there ?
If you put a straight edge across the pressure plate and measure the distance to the levers what distance do you have?
In the picture the specs for the gauge plate is representing the thickness of the clutch disc
 

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Re: I think I found the problem but….

There were no grinding or noises of any kind when shifting, or when wheels turned(when rear end was jacked up). I had to drop the bottom of the pan to get the clutch out, I have not removed the flywheel. Will definitely check make sure the flywheel is correct, I am waiting for the new clutch before I remove the flywheel. There are no adjustments to the clutch fingers, it is fixed.
 
Re: I think I found the problem but….

Kurt in NJ said:
The 11” clutch was available as an option for taxi and heavy duty use for passenger cars.
The oil pan for the 11” clutch by then would be a 2 piece— a section of the pan in the bell housing area was removable to service the clutch.
If you have the normal passenger car oil pan it would need to be removed to service the clutch.
Most likely if there is a problem with the clutch causing you stated problem of not moving you should be able to move the disc around with your fingers.
Is there really a disc there ?
If you put a straight edge across the pressure plate and measure the distance to the levers what distance do you have?
In the picture the specs for the gauge plate is representing the thickness of the clutch disc
Click to expand...
590339
 
Re: I think I found the problem but….

Good luck with this and keep after it. It'll feel good having all this esoteric knowledge in your head for a while.
 
Re: I think I found the problem but….

19Fordy said:
Perhaps I missed something but if you removed a 10 clutch and pressure plate from the flywheel that is in your car, why wouldn't the parts shown below solve your problem?


My Google search says the 1947 Mercury came with a 10 in clutch.
Will this work for you?
https://fortwayneclutch.com/product...tch-kit-assembly-1-3-8-x-10spline-sku-kt5125/
Click to expand...


You might check on where these clutch parts are made - might be from an off shore source.
 
Re: I think I found the problem but….

OK, can we confirm which engine you have in the car? Does it have a "full circular" bell housing mounted between your trans and the engine? What is called the 8BA-series of engines.

If so, I could see how an 11" clutch wouldn't work if you have a stamped steel bell vs. the cast iron one. Stamped steel is for the 10" and cast iron is for the 11".

If you have a 59 AB motor that has the top portion of the bell cast into, something else is amiss, but you already know that.

Any chance of posting some pictures of what you've got going on?
 
Re: I think I found the problem but….

TIM makes an excellent point. The 11 in. clutch and pressure plate can be used only with the cast aluminum bell housing that was used in trucks. The 10" clutch and pressure plate is used with the pressed steel bellhousing used in passenger cars..

As Tim suggested, post photos of the engine you are dealing with making sure to include the bellhousing. Also the clutch and pressure plate that came out of that engine. Also include a photo of your throwout bearing.

This will help determine exactly if you still have the 1947 Mercury engine in your car.
Am thinking that someone may have replaced the original, possibly with a later 8BA style engine.
 
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Re: I think I found the problem but….

I believe I just ordered the wrong clutch, when I looked it up(this time) the clutch I ordered was clearly marked “Trucks”. The one I should have ordered matches the original number in my Mercury parts book. A 51A-7550 Disc with a 19A-7563 Pressure Plate. Pictures enclosed show the Flywheel, (still attached)clutch disc and pressure plate, Transmission, photo also shows the oil pan loosened enough to get the clutch assembly unbolted. I may need to drop that crossover exhaust pipe more or remove it to get the Flywheel out.
Thanks for your replies.
 

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Re: I think I found the problem but….

Tech_machine said:
I believe I just ordered the wrong clutch, when I looked it up(this time) the clutch I ordered was clearly marked “Trucks”. The one I should have ordered matches the original number in my Mercury parts book. A 51A-7550 Disc with a 19A-7563 Pressure Plate. Pictures enclosed show the Flywheel, (still attached)clutch disc and pressure plate, Transmission, photo also shows the oil pan loosened enough to get the clutch assembly unbolted. I may need to drop that crossover exhaust pipe more or remove it to get the Flywheel out.
Thanks for your replies.
Click to expand...
590407


590408


590409


590410


590411
 
Re: I think I found the problem but….

Yes, the 81T 1550 clutch disc verifies your thinking about ordering the wrong parts.
Is there a part number on the pressure plate?

New, correct parts are now on your menu.
 
Re: I think I found the problem but….

19Fordy said:
Yes, the 81T 1550 clutch disc verifies your thinking about ordering the wrong parts.
Is there a part number on the pressure plate?

New, correct parts are now on your menu.
Click to expand...

That part number put me on that trail. I could not find a part number on the PP.
 
Re: I think I found the problem but….

While you have it apart make sure your throwout bearing is ok.
DON'Y FORGET TO REINSTALL IT. ( I did that many years ago.)
 
Re: I think I found the problem but….

If that clutch assembly fits the flywheel and bellhousing, why change it? I dont see the issue with the parts. The isssue I would think is the clutch not engaging as in linckage binding or not adjusted corectly. Again I dont see a problem yet. Test , put it (the clutch) all together see if it functions correctly with the dummy shaft by trying to turn the turn the the dummy shaft with a pipe wrench or big pair of pliers. if it turns the whole engine the clutch package is fine . Next bolt up the tranmission, put it in third and try turning the U joint it should turn the engine as well. Note we did all of this without hooking up the clutch linkage. Now hook up and adjust your linkage operate the pedal a few times and repete the turning test of the U joint. If it still turns the engine the problem is aft of the transmision. Let us know how it turns out ,Tim
 
Re: I think I found the problem but….

The above idea is worth trying. However, I don't think an 11 in clutch will work using a pressed steel bell housing. Not enough clearance.
 
Re: I think I found the problem but….

whats the motor 59a or 8ba ,looks to me to be 59a cast upper bell housing, where is this two piece bell coming from ?
 
Re: I think I found the problem but….

Why are we talking cast iron versus pressed steel bellhousings? The O/P's own photographs clearly show an engine with the expected cast in half bell.
 
Re: I think I found the problem but….

Tubman is correct and as for the clearence of the first clutch which he said was an 11", the OP said that there was no noise , just no forward or backward movement of the car. I hope I'm on track here with the info provided. Tim
 
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