Clutch problem need help! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Brainchild · 02-23-2006, 01:10 PM

I just swapped a clutch disc in a 67 2 ton.The disc was gone.no material left on it at all.So I just swaped the disc for my boss,used the old pressure plate ect,and now it won't release.
So figuring the plate went bad I took it back out and swapped the pressure plate,and still no joy.The thing will not release,what is going on here?

This truck has the 305 V6,and the pressure plate bolts up with 6 bolts,not evenly spaced around the edge,but the frame of hte plate looks like a triangle,if that makes any sense.

The plate is moving when hte pedal is depressed,but it will not release.

TIA

jsbgump · 02-23-2006, 01:20 PM

Is the disc in correctly? Could the throw out bearing be bad?

biglou55 · 02-23-2006, 01:54 PM

I beleive the throw out bearing is not on the fork in the right position. Don.t ask me how i know. (he-he )

Brainchild · 02-23-2006, 02:30 PM

I have checked and double checked the throwout bearing,it is in the correct position,and it was working until I switched the clutch disc.So it should work now I would think

**truckdude239** · 02-23-2006, 02:54 PM

is the clutch disc sliding on the input shaft of the trans? if its stuck it won't disenage may have a bad pressure plate thats why i always install new disc and pressure plate and threw out bearing

sneakysnake · 02-23-2006, 03:36 PM

[QUOTE=Thats why i always install new disc and pressure plate and threw out bearing[/QUOTE]
And dont forget the pilot bushing in the end of the crankshaft.

Gordo · 02-23-2006, 09:54 PM

It may sound stupid but is the clutch disc in backwards?

krue · 02-23-2006, 10:41 PM

Backwards bit me once also. I missed a hot date cuz my dumb self pulled it out laying under the truck one way and put it back in facing the other way.

rustyold69 · 02-23-2006, 11:03 PM

maybe the linkage just needs adjustment because the new disk is thicker than the old one.

Brainchild · 02-23-2006, 11:59 PM

Ok guys here's the deal.The autoparts places around here couldn't get a "KIT" for the truck because of it's size,age,and it not being the original engine.
I did manage to scare up a new disc from NAPA,but no pressure plate,had to go used on that one.The "New" plate acts just like the old one.It moves away from the flywheel more than a 1/4 inch,but will not release the disc.I can see it moving in and out lying under the truck.
The disc is in the right way.I have put them in backwards too,this one isn't.That's what I thought at first too.I checked the clearance between hte back of the disc and the pressure plate,and there is plenty of room where the disc sticks through.
It has a roller pilot bearing installed,it rolls smooth as glass.
I have adjusted the linkage until there is constant pressure on the bearing,no play in hte pedal,that should be enough to let it work if it's going to I think.
I really can't think of anthing else to do to make this thing work,and it's driving me crazy.I wanna get it out of the yard....lol

sneakysnake · 02-24-2006, 11:39 AM

Drop the tranny, but leave the bell housing and linkage in place. take the alignment tool and stick in the disk, get a buddy to push the clutch and with a flashlight see why the thing is not releasing. check the diameter of the plate see that its not hanging the pins or bolts.

67ChevyRedneck · 02-24-2006, 12:04 PM

This may sound dumb, but make sure your pressure plate bolts are in tight. I had one work loose on me and it would not let the clutch release enough to make contact with the plate.

Mongo · 02-24-2006, 12:50 PM

give these guys a call. They have done right by me a couple of times.

Doyle Truck Repair Inc
Address: 160 W Main Street Ext, Hillsboro, OR 97123
Phone: (503) 648-1146

Brainchild · 02-25-2006, 02:53 AM

Looks like the nose of the clutch is too long,and going up inside the crankshaft,and the inside edge on the back of the disc is marked up like it has been slipping.Is this even possible?

I took it apart today and this is all I could find,I can get pics tomorrow if needed.

**truckdude239** · 02-25-2006, 08:37 AM

what kinda of truck is it excatly you said 1967 2 ton get a model and i'll do some reseacrh

**truckdude239** · 02-27-2006, 10:08 AM

did you get it fixed? heresa ttt for ya

sneakysnake · 02-27-2006, 11:03 AM

You are putting the flat side towards the flywheel?

**truckdude239** · 02-27-2006, 12:19 PM

yeah sounds like disc is in backwards

wammer · 02-28-2006, 02:20 PM

sounds like the same problem i had. the nose or center of the disk is to tall. after checking all the part stores no one had one. i had the old one rebuilt.

02-23-2006, 01:10 PM	#1
Brainchild Still drivin' a Rat Rod Join Date: Sep 2004 Location: Monett Missouri Posts: 4,925	Clutch problem need help! I just swapped a clutch disc in a 67 2 ton.The disc was gone.no material left on it at all.So I just swaped the disc for my boss,used the old pressure plate ect,and now it won't release. So figuring the plate went bad I took it back out and swapped the pressure plate,and still no joy.The thing will not release,what is going on here? This truck has the 305 V6,and the pressure plate bolts up with 6 bolts,not evenly spaced around the edge,but the frame of hte plate looks like a triangle,if that makes any sense. The plate is moving when hte pedal is depressed,but it will not release. TIA __________________ Rusty Member #13872 Instead of saying.....you are a discomfort in the back of my front.....one should be able to say...... you are a pain in the a$# 71 GMC LWB 49 Chevy 85 Chevy G20 Check out my website

02-23-2006, 01:20 PM	#2
jsbgump Gone Fishing Join Date: Aug 2005 Location: Fort Worth, Texas 76135 Posts: 12,361	Re: Clutch problem need help! Is the disc in correctly? Could the throw out bearing be bad? __________________ 68 Chevy Short Fleetside LSX Swap Under Way 3.73 posi 2.5/4 drop Frame of resto has been started 2022 Hyundai Tucson Limited 2019 Chevy Traverse Redline Edition Wifes Ride Build Thread http://67-72chevytrucks.com/vboard/s...=1#post3483616

02-23-2006, 01:54 PM	#3
biglou55 Senior Member Join Date: Sep 2002 Location: Greenfield Mass. Posts: 551	Re: Clutch problem need help! I beleive the throw out bearing is not on the fork in the right position. Don.t ask me how i know. (he-he ) __________________ Certifiably crazy person

02-23-2006, 02:30 PM	#4
Brainchild Still drivin' a Rat Rod Join Date: Sep 2004 Location: Monett Missouri Posts: 4,925	Re: Clutch problem need help! I have checked and double checked the throwout bearing,it is in the correct position,and it was working until I switched the clutch disc.So it should work now I would think __________________ Rusty Member #13872 Instead of saying.....you are a discomfort in the back of my front.....one should be able to say...... you are a pain in the a$# 71 GMC LWB 49 Chevy 85 Chevy G20 Check out my website

02-23-2006, 02:54 PM	#5
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,238	Re: Clutch problem need help! is the clutch disc sliding on the input shaft of the trans? if its stuck it won't disenage may have a bad pressure plate thats why i always install new disc and pressure plate and threw out bearing __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube Last edited by truckdude239; 02-23-2006 at 02:56 PM.

02-23-2006, 03:36 PM	#6
sneakysnake It's a catastrophic success. Join Date: Jan 2003 Location: Oklahoma Posts: 2,077	Re: Clutch problem need help! [QUOTE=Thats why i always install new disc and pressure plate and threw out bearing[/QUOTE] And dont forget the pilot bushing in the end of the crankshaft.

02-23-2006, 09:54 PM	#7
Gordo Registered User Join Date: Jan 2001 Location: Killingworth, CT. USA Posts: 3,378	Re: Clutch problem need help! It may sound stupid but is the clutch disc in backwards? __________________ 1971 C10 swb stepside 350/700R4/3.73posi (retired as of 4/22/03) 1998 S10 short bed 2002 S10 Blazer 1942 Oldsmobile 1958 Massey Harris Pony 1951 Wife Killingworth, Connecticut May those who love us, love us, any of those who do not love us, may God turn their hearts. And if God is unable to turn their hearts, may he turn their ankles so we may know them by their limping. A man who works with his hands is a laborer; a man who works with his hands and his brain is a craftsman; but a man who works with his hands and his brain and his heart is an artist.

02-23-2006, 10:41 PM	#8
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,448	Re: Clutch problem need help! Backwards bit me once also. I missed a hot date cuz my dumb self pulled it out laying under the truck one way and put it back in facing the other way. __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

02-23-2006, 11:03 PM	#9
rustyold69 student wrench turner Join Date: Jan 2003 Location: wrightstown, wisconsin Posts: 192	Re: Clutch problem need help! maybe the linkage just needs adjustment because the new disk is thicker than the old one. __________________ 1969 Chevy C-10 with 250 L6 2002 GMC Sierra 2500 HD Duramax with banks six gun

02-23-2006, 11:59 PM	#10
Brainchild Still drivin' a Rat Rod Join Date: Sep 2004 Location: Monett Missouri Posts: 4,925	Re: Clutch problem need help! Ok guys here's the deal.The autoparts places around here couldn't get a "KIT" for the truck because of it's size,age,and it not being the original engine. I did manage to scare up a new disc from NAPA,but no pressure plate,had to go used on that one.The "New" plate acts just like the old one.It moves away from the flywheel more than a 1/4 inch,but will not release the disc.I can see it moving in and out lying under the truck. The disc is in the right way.I have put them in backwards too,this one isn't.That's what I thought at first too.I checked the clearance between hte back of the disc and the pressure plate,and there is plenty of room where the disc sticks through. It has a roller pilot bearing installed,it rolls smooth as glass. I have adjusted the linkage until there is constant pressure on the bearing,no play in hte pedal,that should be enough to let it work if it's going to I think. I really can't think of anthing else to do to make this thing work,and it's driving me crazy.I wanna get it out of the yard....lol __________________ Rusty Member #13872 Instead of saying.....you are a discomfort in the back of my front.....one should be able to say...... you are a pain in the a$# 71 GMC LWB 49 Chevy 85 Chevy G20 Check out my website

02-24-2006, 11:39 AM	#11
sneakysnake It's a catastrophic success. Join Date: Jan 2003 Location: Oklahoma Posts: 2,077	Re: Clutch problem need help! Drop the tranny, but leave the bell housing and linkage in place. take the alignment tool and stick in the disk, get a buddy to push the clutch and with a flashlight see why the thing is not releasing. check the diameter of the plate see that its not hanging the pins or bolts.

02-24-2006, 12:04 PM	#12
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: Clutch problem need help! This may sound dumb, but make sure your pressure plate bolts are in tight. I had one work loose on me and it would not let the clutch release enough to make contact with the plate. __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications!

02-24-2006, 12:50 PM	#13
Mongo YES_____NO Join Date: Jul 1999 Location: Somewhere in the vicinity of betelgeuse Posts: 7,351	Re: Clutch problem need help! give these guys a call. They have done right by me a couple of times. Doyle Truck Repair Inc Address: 160 W Main Street Ext, Hillsboro, OR 97123 Phone: (503) 648-1146 __________________ People many not remember what you said or what you did, but they will remember the way you made them feel. - unknown Cause, remember: no matter where you go... there you are. - Buckaroo Banzai 1984 Help support the board

02-25-2006, 02:53 AM	#14
Brainchild Still drivin' a Rat Rod Join Date: Sep 2004 Location: Monett Missouri Posts: 4,925	Re: Clutch problem need help! Looks like the nose of the clutch is too long,and going up inside the crankshaft,and the inside edge on the back of the disc is marked up like it has been slipping.Is this even possible? I took it apart today and this is all I could find,I can get pics tomorrow if needed. __________________ Rusty Member #13872 Instead of saying.....you are a discomfort in the back of my front.....one should be able to say...... you are a pain in the a$# 71 GMC LWB 49 Chevy 85 Chevy G20 Check out my website

02-25-2006, 08:37 AM	#15
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,238	Re: Clutch problem need help! what kinda of truck is it excatly you said 1967 2 ton get a model and i'll do some reseacrh __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube



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02-27-2006, 10:08 AM	#16
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,238	Re: Clutch problem need help! did you get it fixed? heresa ttt for ya __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

02-27-2006, 11:03 AM	#17
sneakysnake It's a catastrophic success. Join Date: Jan 2003 Location: Oklahoma Posts: 2,077	Re: Clutch problem need help! You are putting the flat side towards the flywheel? Attached Images

02-27-2006, 12:19 PM	#18
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,238	Re: Clutch problem need help! yeah sounds like disc is in backwards __________________ David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube

02-28-2006, 02:20 PM	#19
wammer Registered User Join Date: Jul 2004 Location: conneaut ohio Posts: 10	Re: Clutch problem need help! sounds like the same problem i had. the nose or center of the disk is to tall. after checking all the part stores no one had one. i had the old one rebuilt.

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