The Ford Barn

goodcar · 08-01-2017, 11:46 PM

Recently purchased a lightened balanced flywheel with a v8 pressure plate to go with my newly rebuilt engine. After installing engine this weekend now having a problem with something making a racket every time the clutch is pushed. Finally removed the bell housing inspection plate and discovered that the adjusting nuts on the 3 pressure plate fingers are striking the flanges or whatever you call them on the clutch disk that hold the 6 springs in place. 20 pounds was taken off the flywheel. I didn't ask for that much but that's what I got. Thinking that this maybe flattened the flywheel a little too much causing the pressure plate along with the adjusting screws to be too close to those flanges when the clutch is pushed. Bought this from one of the reputable suppliers so don't want to mention names. Need other opinions on this please. Thanks

RawhideKid · 08-01-2017, 11:51 PM

Did you pre-assemble the pressure plate and clutch plate and adjust the fingers?

It is easiest done while on the bench, but can be done after installed in the car, but with great difficulty.

The fingers need to be 5/8 in deep from the pressure plate outer face.

updraught · 08-02-2017, 12:10 AM

Like this?

https://www.fordbarn.com/forum/showt...ate+adjustment

hardtimes · 08-02-2017, 02:23 AM

Quote:

Originally Posted by goodcar

Recently purchased a lightened balanced flywheel with a v8 pressure plate to go with my newly rebuilt engine. After installing engine this weekend now having a problem with something making a racket every time the clutch is pushed. Finally removed the bell housing inspection plate and discovered that the adjusting nuts on the 3 pressure plate fingers are striking the flanges or whatever you call them on the clutch disk that hold the 6 springs in place. 20 pounds was taken off the flywheel. I didn't ask for that much but that's what I got. Thinking that this maybe flattened the flywheel a little too much causing the pressure plate along with the adjusting screws to be too close to those flanges when the clutch is pushed. Bought this from one of the reputable suppliers so don't want to mention names. Need other opinions on this please. Thanks

Is the disk in facing proper side forward ?

goodcar · 08-02-2017, 09:20 AM

No I did not adjust the fingers. Was advised by supplier that assembly was shipped already properly adjusted.

goodcar · 08-02-2017, 09:25 AM

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Quote:

Originally Posted by hardtimes

Is the disk in facing proper side forward ?

That was my first thought too but yes the disk has proper side forward.

Marshall V. Daut · 08-02-2017, 09:43 AM

If the disk is the correct one, it's almost impossible to put it in backwards. The hub sticks out farther on one side, which precludes it from going against the flywheel side. The hub will rest against the four crankshaft bolt heads, creating a gap between the disk and the flywheel face.
Marshall

Dave in MN · 08-02-2017, 09:46 AM

Quote:

Originally Posted by goodcar

Recently purchased a lightened balanced flywheel with a v8 pressure plate to go with my newly rebuilt engine. After installing engine this weekend now having a problem with something making a racket every time the clutch is pushed. Finally removed the bell housing inspection plate and discovered that the adjusting nuts on the 3 pressure plate fingers are striking the flanges or whatever you call them on the clutch disk that hold the 6 springs in place. 20 pounds was taken off the flywheel. I didn't ask for that much but that's what I got. Thinking that this maybe flattened the flywheel a little too much causing the pressure plate along with the adjusting screws to be too close to those flanges when the clutch is pushed. Bought this from one of the reputable suppliers so don't want to mention names. Need other opinions on this please. Thanks

Most machine shops will not take material from the working face of the flywheel to lighten it. Only what is necessary to flatten the surface should be taken off. If too much material was taken from the face...you typically have a problem with the flywheel bolts striking the springs on the forward side of the disk. Have you checked with your machine shop to inquire where they removed material to lighten it by 20 pounds?
Please keep us informed as to the cause and solution.
Good Day!

goodcar · 08-02-2017, 10:30 AM

Quote:

Originally Posted by Dave in MN

Most machine shops will not take material from the working face of the flywheel to lighten it. Only what is necessary to flatten the surface should be taken off. If too much material was taken from the face...you typically have a problem with the flywheel bolts striking the springs on the forward side of the disk. Have you checked with your machine shop to inquire where they removed material to lighten it by 20 pounds?
Please keep us informed as to the cause and solution.
Good Day!

Material was taken off the same side that pressure plate attaches. Can see dimples where bolt holes were for previous older style pressure plate. Another concern, the flywheel recess where the pilot bearing goes is not open all the way through like my old one was. Were all Model A flywheels' pilot recesses open all the way through or do I have something other than a Model A flywheel??

goodcar · 08-02-2017, 11:03 AM

Quote:

Originally Posted by Marshall V. Daut

If the disk is the correct one, it's almost impossible to put it in backwards. The hub sticks out farther on one side, which precludes it from going against the flywheel side. The hub will rest against the four crankshaft bolt heads, creating a gap between the disk and the flywheel face.
Marshall

Ditto

RawhideKid · 08-02-2017, 11:18 AM

Many many pictures will enlighten US so WE can enlighten YOU!!

Take some pictures and post them up so we can stop speculating and help you out with this problem.

At this point, I would say it is time to pull the engine and find out what is going wrong before you do permanent damage that will wind up costing you way more than the time to pull the engine.

Dave in MN · 08-02-2017, 11:21 AM

Quote:

Originally Posted by goodcar

Material was taken off the same side that pressure plate attaches. Can see dimples where bolt holes were for previous older style pressure plate. Another concern, the flywheel recess where the pilot bearing goes is not open all the way through like my old one was. Were all Model A flywheels' pilot recesses open all the way through or do I have something other than a Model A flywheel??

To fit a V-8 style pressure plate, it would require removing the raised outer ring or flange. Seeing the dimples is normal when the outer ring is removed that held the Model A style pressure plate.

I see these dimples all the time when I lighten flywheels. So the question is still out there if the face was removed excessively.

I guess I have never seen a flywheel where the pilot bearing opening was not machined all the way through. I have worked with lots of flywheels...so I don't know what you have.

You need to contact the reputable supplier you purchased the combined unit from and discuss your problem.
Good Day!

Marshall V. Daut · 08-02-2017, 11:24 AM

As long as the pilot bearing bottoms out either inside the flywheel's center recess or against the crankshaft's rear flange, you're o.k. If the pilot bearing sticks out more than a titch (technical term), there's a problem. Some pilot bearings have a raised rim around the outside to prevent the bearing from going too deeply into a flywheel. Other pilot bearings don't have this ring, relying instead upon a dead end recess in the flywheel or once again, against the crank's flange to seat it. The rim of the one style pilot bearing will stick out a little, but that's o.k. It's designed to do that. But if the style with no rim sticks out more than a 1/16th-1/8th of an inch or so after seating, either it's the wrong pilot bearing or something is lodged inside the flywheel recess that is preventing it from bottoming out.
I have installed several V-8 flywheels, but I guess I never really paid any attention to whether the center hole is a dead end or goes all the way through, like in a Model A flywheel. The pilot bearing always went in as it's supposed to, so there was no need to be concerned about that hole. I'll check the V-8 flywheels I have in the garage and post again.
Marshall

duke36 · 08-02-2017, 12:13 PM

had similar issue; discovered that I forgot to adjust the clutch pedal clearance (freeplay) enough !!!--- and the fingers were engaging the throwout bearing in addition to one finger out of adjustment causing premature chatter. Mine had lock nuts and was able to adjust in the car thru the inspection plate hole. Fortunately the throwout bearing wasn't scored.

08-01-2017, 11:46 PM	#1
goodcar Senior Member Join Date: Apr 2013 Posts: 293	Lightend Flywheel v8 Pressure Plate problem Recently purchased a lightened balanced flywheel with a v8 pressure plate to go with my newly rebuilt engine. After installing engine this weekend now having a problem with something making a racket every time the clutch is pushed. Finally removed the bell housing inspection plate and discovered that the adjusting nuts on the 3 pressure plate fingers are striking the flanges or whatever you call them on the clutch disk that hold the 6 springs in place. 20 pounds was taken off the flywheel. I didn't ask for that much but that's what I got. Thinking that this maybe flattened the flywheel a little too much causing the pressure plate along with the adjusting screws to be too close to those flanges when the clutch is pushed. Bought this from one of the reputable suppliers so don't want to mention names. Need other opinions on this please. Thanks

08-01-2017, 11:51 PM	#2
RawhideKid BANNED Join Date: Apr 2017 Location: Lower Left Coast Posts: 469	Re: Lightend Flywheel v8 Pressure Plate problem Did you pre-assemble the pressure plate and clutch plate and adjust the fingers? It is easiest done while on the bench, but can be done after installed in the car, but with great difficulty. The fingers need to be 5/8 in deep from the pressure plate outer face. __________________ Before Walmart you had to buy a ticket to the fair to see a bearded lady!

08-02-2017, 12:10 AM	#3
updraught Senior Member Join Date: Feb 2015 Location: Australia Posts: 1,971	Re: Lightend Flywheel v8 Pressure Plate problem Like this? https://www.fordbarn.com/forum/showt...ate+adjustment

08-02-2017, 09:20 AM	#5
goodcar Senior Member Join Date: Apr 2013 Posts: 293	Re: Lightend Flywheel v8 Pressure Plate problem No I did not adjust the fingers. Was advised by supplier that assembly was shipped already properly adjusted.

08-02-2017, 09:43 AM	#7
Marshall V. Daut Senior Member Join Date: Apr 2011 Location: Davenport, Iowa Posts: 2,112	Re: Lightend Flywheel v8 Pressure Plate problem If the disk is the correct one, it's almost impossible to put it in backwards. The hub sticks out farther on one side, which precludes it from going against the flywheel side. The hub will rest against the four crankshaft bolt heads, creating a gap between the disk and the flywheel face. Marshall

08-02-2017, 11:18 AM	#11
RawhideKid BANNED Join Date: Apr 2017 Location: Lower Left Coast Posts: 469	Re: Lightend Flywheel v8 Pressure Plate problem Many many pictures will enlighten US so WE can enlighten YOU!! Take some pictures and post them up so we can stop speculating and help you out with this problem. At this point, I would say it is time to pull the engine and find out what is going wrong before you do permanent damage that will wind up costing you way more than the time to pull the engine. __________________ Before Walmart you had to buy a ticket to the fair to see a bearded lady!

08-02-2017, 11:24 AM	#13
Marshall V. Daut Senior Member Join Date: Apr 2011 Location: Davenport, Iowa Posts: 2,112	Re: Lightend Flywheel v8 Pressure Plate problem As long as the pilot bearing bottoms out either inside the flywheel's center recess or against the crankshaft's rear flange, you're o.k. If the pilot bearing sticks out more than a titch (technical term), there's a problem. Some pilot bearings have a raised rim around the outside to prevent the bearing from going too deeply into a flywheel. Other pilot bearings don't have this ring, relying instead upon a dead end recess in the flywheel or once again, against the crank's flange to seat it. The rim of the one style pilot bearing will stick out a little, but that's o.k. It's designed to do that. But if the style with no rim sticks out more than a 1/16th-1/8th of an inch or so after seating, either it's the wrong pilot bearing or something is lodged inside the flywheel recess that is preventing it from bottoming out. I have installed several V-8 flywheels, but I guess I never really paid any attention to whether the center hole is a dead end or goes all the way through, like in a Model A flywheel. The pilot bearing always went in as it's supposed to, so there was no need to be concerned about that hole. I'll check the V-8 flywheels I have in the garage and post again. Marshall Last edited by Marshall V. Daut; 08-02-2017 at 11:33 AM.

08-02-2017, 12:13 PM	#14
duke36 Senior Member Join Date: Jun 2015 Posts: 1,414	Re: Lightend Flywheel v8 Pressure Plate problem had similar issue; discovered that I forgot to adjust the clutch pedal clearance (freeplay) enough !!!--- and the fingers were engaging the throwout bearing in addition to one finger out of adjustment causing premature chatter. Mine had lock nuts and was able to adjust in the car thru the inspection plate hole. Fortunately the throwout bearing wasn't scored.