Clutch Question
Thread Starter
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Cargo Master
Joined: Mar 2010
Posts: 2,230
Likes: 149
From: Higginsville, MO
Clutch Question
I know the ZF5 had a dual mass flywheel clutch setup i also learned there where 11 inch and 12 inch versions..... how do you tell which one you have? and how difficult is it to change one of these clutches? i have never had to change one and mine is still working but im just pricing parts for future reference.... truck has 234,000 miles on it with no service record so the only parts i know i can trust are the ones i have put on it. do they ever really wear out?
the 11 inch one i can get for 180 +
the 12 inch one is 450 +
the 11 inch one i can get for 180 +
the 12 inch one is 450 +
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
Prices are dropping some, but a dual mass flywheel is close to 1000 dollars.
Throw in another 220 to 250 for the clutch disc, pressure plate and throw out bearing.
Yes they do wear out, and they are expensive to replace.
You can do a single mass flywheel conversion, usually for less money.
However some of the ZF transmissions seem to have a lot of gear roll over noise after the converasion, and it drives some people nuts with all the noise.
When you check the dual mass flywheel, from memory 5/8" rotational free play is the max service limit.
So if you have that much or more, you need to replace the flywheel.
Throw in another 220 to 250 for the clutch disc, pressure plate and throw out bearing.
Yes they do wear out, and they are expensive to replace.
You can do a single mass flywheel conversion, usually for less money.
However some of the ZF transmissions seem to have a lot of gear roll over noise after the converasion, and it drives some people nuts with all the noise.
When you check the dual mass flywheel, from memory 5/8" rotational free play is the max service limit.
So if you have that much or more, you need to replace the flywheel.
Postmaster
Joined: Jan 2010
Posts: 4,319
Likes: 4
From: Elk City, OK
as your looking at the flywheel (with or without the pressure plate attached) just turn the pressure plate clockwise and counter clockwise. it will rotate, if its more then 5/8" from lock to lock then the springs are worn out/broken and you need to replace it.
Thread Starter
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Cargo Master
Joined: Mar 2010
Posts: 2,230
Likes: 149
From: Higginsville, MO
can the check be done with the transmission still attached to the engine i dont have anything disassembled its still driveable but id like to check it to see where its at to plan for the future
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Cargo Master
Joined: Mar 2010
Posts: 2,230
Likes: 149
From: Higginsville, MO
I have a popping noise that happens when the clutch is released and have been told its either in the clutch fork or the throughout bearing by one of the guys i know at autozone and the service dept guys at ford after letting them listen to it i had it happen once before and i messed with the fork a little bit but im thinking about just replacing the throughout bearing this time and i need to know is this the right one
Timken/Clutch Bearing (614062) | Clutch Bearing | 1994 Ford F250 3/4 ton P/U 4WD 8 Cylinders M 7.3L Diesel | AutoZone.com
Timken/Clutch Bearing (614062) | Clutch Bearing | 1994 Ford F250 3/4 ton P/U 4WD 8 Cylinders M 7.3L Diesel | AutoZone.com
Thread Starter
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Cargo Master
Joined: Mar 2010
Posts: 2,230
Likes: 149
From: Higginsville, MO
Sachs NFW1069 - Clutch Flywheel 1994 Ford F-250 | O'Reilly Auto Parts
how bout this flywheel? does this one really work on our trucks?
how bout this flywheel? does this one really work on our trucks?
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Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
Sounds like the Throwout bearing is binding on the nose cone of the transmission ...
-Enjoy
fh : )_~
-Enjoy
fh : )_~
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Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
Burrs, Rust, Lack of grease.
Many people do not apply a light coat of HTEP (High Temp Extreme Pressure) grease to the nose cone when replacing the throwout, it should be done every time it's apart.
-Enjoy
fh : )_~
Many people do not apply a light coat of HTEP (High Temp Extreme Pressure) grease to the nose cone when replacing the throwout, it should be done every time it's apart.
-Enjoy
fh : )_~
Lead Driver
Joined: Dec 2002
Posts: 5,491
Likes: 16
From: Kuna ID
The inspection cover is removable if you want to check you DMF. I just checked mine as I beleive it's the source of my knock and sqeak. I have about a 1/2" of play in my flywheel and it's only got 133k miles. I plan on going with a south bend conversion set, comes with a new flywheel, clutch set and a kevlar pilot bushing for under $600.