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Old 05-18-2015, 08:13 PM   #1
the_goat_man
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clutch problims

ok so I have a 66 c10 swb that I pick up from a guy. it has a 383 stroker and a m21 4 speed in it. my issue is the clutch will not disengage. I bought the adjustable clutch linkage from lmc and with it adj as far as I can adj it. it will not pull the pressure plate off of the clutch disk. the pressure plate is a Borg and Beck 3 finger type. I think it has the factory bellhousing that came in the truck. I am at a stand still. oh and the throwout bering is about 1/2 inch from the finger on the cluch any info will help. is it wrong bellhousing for that set up or is it just the wrong clutch and pressure plate.
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Old 05-18-2015, 09:58 PM   #2
OldChevy61
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Re: clutch problims

Bell housing is fine. Sounds like pressure plate ,throw out bearing or both are wrong.
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Old 05-18-2015, 11:02 PM   #3
the_goat_man
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Re: clutch problims

Does anyone have a pic of the bell housing in there truck.
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Old 05-18-2015, 11:33 PM   #4
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Re: clutch problims

So you've adjusted it all the way and the bearing is a half inch from the pressure plate? I know it may seem like an obvious question but....are you sure you adjusted the linkage theads for MAXIUM not minimum travel of the bearing? Wouldn't be a stretch to adjust it exactly oposite of your intentions. I know I've started down that path before and then had to stop and say wtf. Edit: Also, is the rod in the outward most hole in the clutch fork? That's the one to use for maximum travel and leverage.

Last edited by AcampoDave; 05-18-2015 at 11:45 PM.
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Old 05-19-2015, 12:03 AM   #5
jtrichard
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Re: clutch problims

can you put up pics of just what you have ( fork,throwout bearing, pressure plate ,bell housing) you could have wrong bearing/fork any number of things
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Old 05-19-2015, 01:20 AM   #6
Captainfab
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Re: clutch problims

All Gen I small block bellhousings are the same distance from the engine to the trans. I'm thinking that possibly the wrong throw out bearing was used, or you have something else wrong. I agree with jtrichard, we need some pics.
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Old 05-19-2015, 03:40 AM   #7
padresag
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Re: clutch problims

as the capt says there is a long and a short throw out bearing.
if you changed the adj rod make sure that the wedge piece is on the end where it goes into the throw out arm
ron
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Old 05-19-2015, 10:11 AM   #8
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Re: clutch problims

Have you driven this truck? Your initial post is unclear on that.

If you have not driven the truck and are just now setting it up I can not help you.

If you have driven it and put it away for storage or just have not driven it in a long time, the clutch plate is most likely stuck to he flywheel. That is a common occurrence when you let a vehicle sit.

So which is it?
Jim
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Old 05-19-2015, 10:56 AM   #9
the_goat_man
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Re: clutch problims

I have driven it but I had to put washers under the pressure plate between the flywheel and pressure plate to drive it. But it was slipping super bad.
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Old 05-19-2015, 11:31 AM   #10
cru_zn_29
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Re: clutch problims

Is the clutch and pressure plate new? if so check to see if the installer forgot to remove the shipping spacers between forks and clutch housing. When removed the forks will raise up about 3/4 of a inch. And remove washers from between pressure plat and flywheel.
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Old 05-19-2015, 11:35 AM   #11
padresag
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Re: clutch problims

Quote:
Originally Posted by the_goat_man View Post
I have driven it but I had to put washers under the pressure plate between the flywheel and pressure plate to drive it. But it was slipping super bad.
well of course putting washers under the pressure plate("pressure"!!) will cause slippage
ron
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Old 05-19-2015, 11:50 AM   #12
the_goat_man
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Re: clutch problims

It is not a new clutch. I am leaning towards getting a new clutch and flywheel. Just not sure what to get
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Old 05-19-2015, 11:58 AM   #13
padresag
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Re: clutch problims

installing a new clutch assembly and flywheel will probably not solve your problem. find out whether or not that you have the right t/o brg and the linkage is all there
ron
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Old 05-19-2015, 12:01 PM   #14
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Re: clutch problims

IF you get a new flywheel (which i bet it DONT need) IT HAS to be a 400 wheel ( externally balanced) .... you have wrong bearing or fork
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Old 05-19-2015, 12:15 PM   #15
the_goat_man
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Re: clutch problims

The bearing is a short and the fork is one from the lmc truck
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Old 05-19-2015, 05:15 PM   #16
Wrenchbender Ret
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Re: clutch problims

I would get a new clutch kit for it. Those 3 finger clutches are not near as good as the diaphragm type. If the flywheel is smooth & not cracked it will be OK. If not you can have it surfaced ground.
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Old 05-19-2015, 10:10 PM   #17
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Re: clutch problims

Quote:
Originally Posted by Wrenchbender Ret View Post
I would get a new clutch kit for it. Those 3 finger clutches are not near as good as the diaphragm type. If the flywheel is smooth & not cracked it will be OK. If not you can have it surfaced ground.
2nd that on the 3 finger clutch. They are a brute to keep depressed for any real lenth of time. I swapped mine out for a diaphram and it's night and day.
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Old 05-20-2015, 01:34 AM   #18
padresag
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Re: clutch problims

one was designed for men and the other for women and children.
3 prong was the heavier duty for trucks and the diaphram was for cars.
ron
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Old 05-20-2015, 01:42 AM   #19
jtrichard
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Re: clutch problims

Quote:
Originally Posted by padresag View Post
one was designed for men and the other for women and children.
3 prong was the heavier duty for trucks and the diaphram was for cars.
ron
AGREE 10 fold......diaphragm clutches like to slip i have never had a good one yet and never had any problems yet with a 3 finger
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Old 05-20-2015, 09:48 AM   #20
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Re: clutch problims

Quote:
Originally Posted by padresag View Post
one was designed for men and the other for women and children.
3 prong was the heavier duty for trucks and the diaphram was for cars.
ron
And to think all this time I always thought automatics were for ladies and kids......(just kidding by the way. I've had a turbo 350 or two in my life before)
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