Previous Thread
Next Thread
Print Thread
70 A body Clutch question #84738
07/06/08 11:34 AM
07/06/08 11:34 AM
Joined: Feb 2003
Posts: 455
Ashburn, Virginia
A
ashburnmike Offline OP
mopar
ashburnmike  Offline OP
mopar
A

Joined: Feb 2003
Posts: 455
Ashburn, Virginia
I got the motor going thanks to everyone. Here's my latest stopping point.
I raised the back wheels off the ground to test the driveline.
When I depress the clutch almost to the floor, I can feel and hear, a metal on metal mis-meshing of what sounds like two gears out of sync... if that makes any sense.
I dropped the inspection pan and the flywheel is showing some surface rust.
I tried to force the trans into first gear, but backed off and shut it down and thought I better get on the board and ask for help before I do any permanent damage.
what could my problem here be? Any ideas?
thanks again for the support

Re: 70 A body Clutch question [Re: ashburnmike] #84739
07/06/08 12:02 PM
07/06/08 12:02 PM

A
Anonymous
Unregistered
Anonymous
Unregistered
A



Are you saying it grinds when you depress the clutch ONLY and ARE NOT trying to put the trans into gear?

If so, There are a few things:

Most likely is that the clutch fork is out of place, either improperly placed on the T/O and or not on the pivot correctly.

You may have the disc stuck to the flywheel, and you may have simple "overadjusted" the linkage to try and get it to release. What I mean is, the linkage is moving too far, and the clutch fingers are contacting the hub on the clutch.

Try with a second person or a blocking device, depress the clutch, then underneath inspect with a feeler gauge to see if the pressure plate is moving enough to release

It's possible that for some reason, the front snout of the bearing retainer broke---I've had this twice in my lifetime on two different cars

I'm assuming this is a new build and has never been run this way?

Re: 70 A body Clutch question #84740
07/06/08 12:31 PM
07/06/08 12:31 PM
Joined: Feb 2003
Posts: 455
Ashburn, Virginia
A
ashburnmike Offline OP
mopar
ashburnmike  Offline OP
mopar
A

Joined: Feb 2003
Posts: 455
Ashburn, Virginia
that's it exactly. it grinds when I depress the clutch only. It is a new re-build, except it was done over 6 years ago and has sat (in a garage)waiting for me.
I just had my helper shove in the clutch and it appears that the disc is stuck to the flywheel. It doesn't release. Is there a way to break it free w/o pulling the transmission? Please tell me there is.
thanks
Mike

Re: 70 A body Clutch question [Re: ashburnmike] #84741
07/06/08 12:57 PM
07/06/08 12:57 PM

A
Anonymous
Unregistered
Anonymous
Unregistered
A



Usually you can bust them free, easily.

FIRST, find this grinding problem. Again, recheck that the fork/ pivot/ TO is correct.

Next, check that you don't have the linkage cranked in so far that you are simply "over-releasing"

Get the car started and running good.

Then figure a way to get it rolling, or if it starts easily, just start it up in first gear.

Get it rolling, pop it into gear, and push in the clutch. A little power and "on/ off" the throttle should break it loose.

Re: 70 A body Clutch question #84742
07/06/08 01:07 PM
07/06/08 01:07 PM
Joined: Feb 2003
Posts: 455
Ashburn, Virginia
A
ashburnmike Offline OP
mopar
ashburnmike  Offline OP
mopar
A

Joined: Feb 2003
Posts: 455
Ashburn, Virginia
to review,
#1) I will re-check the Fork, Pivot and T/O bearing. It seems like a pretty simple setup but I'll look for anything that doesn't make sense. Should I soak everything down w/ WD oil? It has been sitting for a very long time.
#2) I'll return the petal to the 1" or so freeplay position.
#3)Car is running
#4)The car is on jack stands all the way around.
#5) I'll start it up in first gear
Am I forgetting anything?

Re: 70 A body Clutch question [Re: ashburnmike] #84743
07/06/08 01:14 PM
07/06/08 01:14 PM
Joined: Feb 2003
Posts: 455
Ashburn, Virginia
A
ashburnmike Offline OP
mopar
ashburnmike  Offline OP
mopar
A

Joined: Feb 2003
Posts: 455
Ashburn, Virginia
Fork, T/O, & pivot all look right.
can't get the petal to return to home position now.

Re: 70 A body Clutch question [Re: ashburnmike] #84744
07/06/08 03:20 PM
07/06/08 03:20 PM
Joined: Feb 2003
Posts: 455
Ashburn, Virginia
A
ashburnmike Offline OP
mopar
ashburnmike  Offline OP
mopar
A

Joined: Feb 2003
Posts: 455
Ashburn, Virginia
the Z bar, for some reason, has sliped toward the starter motor, that misalignment may have something to do w/ this problem.
Starting the motor in gear didn't seem to help.
any other ideas?

Re: 70 A body Clutch question [Re: ashburnmike] #84745
07/06/08 11:22 PM
07/06/08 11:22 PM
Joined: Feb 2003
Posts: 455
Ashburn, Virginia
A
ashburnmike Offline OP
mopar
ashburnmike  Offline OP
mopar
A

Joined: Feb 2003
Posts: 455
Ashburn, Virginia
btt

Re: 70 A body Clutch question [Re: ashburnmike] #84746
07/07/08 12:29 AM
07/07/08 12:29 AM
Joined: Jan 2003
Posts: 75,125
A Banana Republic near you.
JohnRR Offline
I Win
JohnRR  Offline
I Win

Joined: Jan 2003
Posts: 75,125
A Banana Republic near you.
Quote:

the Z bar, for some reason, has sliped toward the starter motor, that misalignment may have something to do w/ this problem.
Starting the motor in gear didn't seem to help.
any other ideas?




there is aclip that holds the Z bar in place , the tips of the clip go in holes in the Z bar and lock in the groove in the middle of the bushings , this clip should be on the fenderwell side .

also strat it in gear wit hthe clutch depress , real whells on the ground and the E brake set

Re: 70 A body Clutch question [Re: JohnRR] #84747
07/07/08 10:30 AM
07/07/08 10:30 AM
Joined: Feb 2003
Posts: 455
Ashburn, Virginia
A
ashburnmike Offline OP
mopar
ashburnmike  Offline OP
mopar
A

Joined: Feb 2003
Posts: 455
Ashburn, Virginia
I'll take apart the z-bar and make sure it's right.
I don't have any e-brake yet, haven't hooked it up. I haven't gotten to the brakes on the car yet, at all.
Why would the disc get stuck to the flywheel?
Can I stick a thin blade in there and try to "pop" it loose? Or would I do major damage to something.
I appreciate all the help

Re: 70 A body Clutch question [Re: ashburnmike] #84748
07/07/08 10:38 AM
07/07/08 10:38 AM
Joined: Jan 2003
Posts: 33,005
Grand Prairie,Texas
stumpy Offline
I Win
stumpy  Offline
I Win

Joined: Jan 2003
Posts: 33,005
Grand Prairie,Texas
Are you sure the clutch disk is facing the flywheel correctly? It can be put on backwards which puts the springs up against the flywheel bolts and that will make the type of noise you are discribing.

Re: 70 A body Clutch question [Re: stumpy] #84749
07/07/08 06:34 PM
07/07/08 06:34 PM
Joined: Feb 2003
Posts: 455
Ashburn, Virginia
A
ashburnmike Offline OP
mopar
ashburnmike  Offline OP
mopar
A

Joined: Feb 2003
Posts: 455
Ashburn, Virginia
no, I am not sure if I put it on the correct way.
Would that explain the grinding sound?...it sounds like gears stripping.
I was trying to avoid pulling the trans out and give it a real checking over...but it's looking like I have no choice, huh.

Re: 70 A body Clutch question [Re: ashburnmike] #84750
07/07/08 10:06 PM
07/07/08 10:06 PM

A
Anonymous
Unregistered
Anonymous
Unregistered
A



You MIGHT be able to see the disc through the bottom of the bell enough to tell. The 'fat' part of the disc goes out towards the transmission

Re: 70 A body Clutch question #84751
07/08/08 07:46 PM
07/08/08 07:46 PM
Joined: Feb 2003
Posts: 455
Ashburn, Virginia
A
ashburnmike Offline OP
mopar
ashburnmike  Offline OP
mopar
A

Joined: Feb 2003
Posts: 455
Ashburn, Virginia
Yes, I can see two discs.
Each is 1/8" wide and flat against the flywheel.
When you push in the petal, it appears to want to draw away from the flywheel, but it can't.
any help with that description?
appreciate this

Re: 70 A body Clutch question-REVISITED [Re: ashburnmike] #84752
08/18/08 10:39 AM
08/18/08 10:39 AM
Joined: Feb 2003
Posts: 455
Ashburn, Virginia
A
ashburnmike Offline OP
mopar
ashburnmike  Offline OP
mopar
A

Joined: Feb 2003
Posts: 455
Ashburn, Virginia
I complained to everyone of a chattering problem when I push my clutch petal 3/4's of the way to the floor.
I have disassembled everything to the flywheel and this is what I've found.
a) in the hole bored into the crank, there was no grease. Can't be good
b) in the flywheel center there was no bushing. Probably not right.
c) the clutch and pressure plate were made my beck and borg and they are new
d) the clutch disc was installed with the protruding hub facing towards the trans/pressure plate, flat side to the flywheel.
e) the hub on the clutch disc wiggles slightly. Not sure this matters.
f) the clutch disc left an imprint of it's surface on the surface of the pressure plate. I assume because it sat for years after the initial installation. Kind of a light imprint, if that makes sense.
g) the clutch disc springs facing the pressure plate show definate signs of "something" scraping across them. This must be where the chatter sound I was hearing (and feeling in the petal) comes from. But what could be doing that?
h) the throw out bearing spins free and has shiney marks where it sits on the presure plate fingers. The T/O bearing was attached to the clutch fork per the manual. it seems right.
I) the clutch fork is old, but in servicable condition. it was attached properly to the bell housing or at least seems to be.
J) The z-bar was incorrectly installed. I have fixed it.
Given this information...any and all feedback on where to go from here would be greatly appreciated.
thanks
Mike

Re: 70 A body Clutch question-REVISITED [Re: ashburnmike] #84753
08/18/08 10:59 AM
08/18/08 10:59 AM
Joined: Jan 2003
Posts: 2,757
Gilbertsville, PA 19525
P
Pntastar69 Offline
master
Pntastar69  Offline
master
P

Joined: Jan 2003
Posts: 2,757
Gilbertsville, PA 19525
b) in the flywheel center there was no bushing. Probably not right.

That being said, and how long it was driven like that, the main bearing (and more) in the trans may be gone. A good candidate for a trans go thru.

Re: 70 A body Clutch question-REVISITED [Re: Pntastar69] #84754
08/18/08 11:05 AM
08/18/08 11:05 AM
Joined: Feb 2003
Posts: 455
Ashburn, Virginia
A
ashburnmike Offline OP
mopar
ashburnmike  Offline OP
mopar
A

Joined: Feb 2003
Posts: 455
Ashburn, Virginia
it has never been driven, only recently started the rebuilt motor after years and years.

Re: 70 A body Clutch question-REVISITED [Re: ashburnmike] #84755
08/19/08 02:00 PM
08/19/08 02:00 PM
Joined: Jan 2003
Posts: 2,757
Gilbertsville, PA 19525
P
Pntastar69 Offline
master
Pntastar69  Offline
master
P

Joined: Jan 2003
Posts: 2,757
Gilbertsville, PA 19525
Lightly grease the input shaft.
Install either the pilot shaft bearing or the roller bearing in the flywheel.
Resurface the flywheel.
May need a new disk too.

What's the status of the trans? I'd question it if the same person did the install of the items you mentioned.

Re: 70 A body Clutch question-REVISITED [Re: Pntastar69] #84756
08/19/08 06:11 PM
08/19/08 06:11 PM
Joined: Feb 2003
Posts: 455
Ashburn, Virginia
A
ashburnmike Offline OP
mopar
ashburnmike  Offline OP
mopar
A

Joined: Feb 2003
Posts: 455
Ashburn, Virginia
Thanks Mark,

the trans was rebuilt long ago by Jamie Passon and never installed until now. It has never been put under any stress.

I do have a pilot bushing in the back of the crank.

After a conversation w/ Wayne @ Brewers, he said the Borg and Beck clutch assembly I bought was, in his opinion, a sub par Chinese knockoff and he had heard of my problem before

I ordered a new McCloud assembly (clutch, pressure plate, t/o bearing)
and even though the flywheel showed a mild surface rust on the outer rim near the teeth, I have it at the machine shop getting cleaned up.

Hopefully when I stick the McCloud assembly in there, all these issues will vaporize.

If they do, then I learned yet another expensive lesson w/ respect to buying inexpensive components.

I hope it works like it's supposed to

Mike

Re: 70 A body Clutch question [Re: ashburnmike] #84757
08/19/08 08:25 PM
08/19/08 08:25 PM
Joined: Apr 2004
Posts: 1,396
Mass
dgc333 Offline
pro stock
dgc333  Offline
pro stock

Joined: Apr 2004
Posts: 1,396
Mass
Quote:

that's it exactly. it grinds when I depress the clutch only. It is a new re-build, except it was done over 6 years ago and has sat (in a garage)waiting for me.





I had the same issue and it was the pressure plate fingers contacting the hub of the disk. I wound up putting a block of wood under the carpet to keep me from depressing the pedal to far.

I figured it was some mis-matched parts with the bell housing and clutch fork until the clutch failed for a unrelated issue and I purchased a new clutch set.

The one I had problems with was a ZOOM OE replacement unit. I got a RAM high performance clutch to replace it and the problem is solved. They are of the same three finger design for the pressure plate but the RAM uses stiffer springs for a higher clamping force with different friction material on the disk.

The ZOOM disk has a hub that is about 1/2" higher than the friction surface on the side toward the tranny. The RAM disk the hub is only about 1/4" of an inch higher. I am able to adjust the pedal up tight and with no block of wood the fingers do not touch the disk.


Dave Clement Pembroke, MA 03 PT Cruiser GT Turbo 99 Dakota SLT+ CC 4x4 68 Barracuda sport coupe http://home.comcast.net/~dgc333/






Powered by UBB.threads™ PHP Forum Software 7.7.1