Another mixed up mess. - Chevelle Tech
Transmission & Driveline Transmissions and Differentials

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post #1 of 25 (permalink) Old Apr 24th, 17, 6:17 PM Thread Starter
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Darren
 
Join Date: Mar 2004
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Another mixed up mess.

1. It was all working perfect, all fresh build, all new parts with about 1,500 miles on them.
Problem: started grinding going into FORTH gear. This is the only thing wrong. (everything you read says brass ring is jacked, it's not)

Lakewood bell
CFDF clutch
longer of the 2 "fixed" GM pivot ball
New stock replacement fork
614018 Precision Clutch Release Bearing <- what I think the problem is (and if it is why did it go bad so quickly?)

I have LOTS of pics I'm just not sure what is relevant. I read about this for hours before installing it all and it DID work great for 2 years of limited use. I spent most of the day today reading posts were JodysTransmissions's has some wicked great input. Now I'm not sure if I need the McLeod Throwout Bearings 16505 or the adjustable pivot ball or both or none. Only because I haven't torn it all back down and measured.

OKAY, if you are still with me...the 614018 Precision Clutch Release Bearing is NOT centered and HAS side to side deflection. Although it spins great, the fact that I can move the outer race/circle, whatever is freaking me out.

Idea's, what other information is relevant? P.S. I guess I'm just looking for "You don't have 4.75 and this is ruining the throw-out bearing" ...??
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If you donít push the limits how are you going to find the weak spots?
USMC- Retired
My car: 1970 Chevelle

Factory 12 bolt /4-Speed Malibu -Dual stage wet nitrous with heater & purge - Holley Strip Dominator, Speed Demon 750 CFM - (All MSD distributor, blaster 3 coil, 6AL, & 3 stage retard) - 4 wheel disk brakes - Aeromotive Fuel system Ė Boss 338 18ís - BMW 5.25 true HID projector mod - and of course... the FLAPPER - bla, bla, bla.. lots of other expensive stuff I canít remember

Last edited by 70 nialator; Apr 24th, 17 at 7:23 PM.
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post #2 of 25 (permalink) Old Apr 24th, 17, 6:51 PM Thread Starter
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Darren
 
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Re: Another mixed up mess.

Yes the longer one. I did my home work. (just felt like that question was coming)
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If you donít push the limits how are you going to find the weak spots?
USMC- Retired
My car: 1970 Chevelle

Factory 12 bolt /4-Speed Malibu -Dual stage wet nitrous with heater & purge - Holley Strip Dominator, Speed Demon 750 CFM - (All MSD distributor, blaster 3 coil, 6AL, & 3 stage retard) - 4 wheel disk brakes - Aeromotive Fuel system Ė Boss 338 18ís - BMW 5.25 true HID projector mod - and of course... the FLAPPER - bla, bla, bla.. lots of other expensive stuff I canít remember
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post #3 of 25 (permalink) Old Apr 24th, 17, 7:08 PM
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Hank
 
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Re: Another mixed up mess.

With the problem you had with the rear and now this you must feel like your driving a Ford "Fix or Repair Daily". I know the feeling had 3 brand new parts fail within the first 250 miles I put on the car. It does get frustrating after awhile.

71 Malibu, 396BBC, 4 speed, 12 bolt.
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post #4 of 25 (permalink) Old Apr 24th, 17, 7:14 PM Thread Starter
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Darren
 
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Re: Another mixed up mess.

That's what is funny.. you know the damn thing was working to bust an axle!! But to your point, yes this is getting old and I'm getting a little pissed.

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HKalin likes this.

If you donít push the limits how are you going to find the weak spots?
USMC- Retired
My car: 1970 Chevelle

Factory 12 bolt /4-Speed Malibu -Dual stage wet nitrous with heater & purge - Holley Strip Dominator, Speed Demon 750 CFM - (All MSD distributor, blaster 3 coil, 6AL, & 3 stage retard) - 4 wheel disk brakes - Aeromotive Fuel system Ė Boss 338 18ís - BMW 5.25 true HID projector mod - and of course... the FLAPPER - bla, bla, bla.. lots of other expensive stuff I canít remember
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post #5 of 25 (permalink) Old Apr 24th, 17, 7:29 PM
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Hank
 
Join Date: Feb 2006
Location: Connecticut
Posts: 4,201
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Re: Another mixed up mess.

The one thing I can say for you is you get right into it and get it done. Even when you did your interior you had it done in no time and it came out really nice.
70 nialator likes this.

71 Malibu, 396BBC, 4 speed, 12 bolt.
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post #6 of 25 (permalink) Old Apr 24th, 17, 11:17 PM
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Dave
 
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Re: Another mixed up mess.

Quote:
Originally Posted by 70 nialator View Post
1. It was all working perfect, all fresh build, all new parts with about 1,500 miles on them.
Problem: started grinding going into FORTH gear. This is the only thing wrong. (everything you read says brass ring is jacked, it's not)

Lakewood bell
CFDF clutch
longer of the 2 "fixed" GM pivot ball
New stock replacement fork
614018 Precision Clutch Release Bearing <- what I think the problem is (and if it is why did it go bad so quickly?)

I have LOTS of pics I'm just not sure what is relevant. I read about this for hours before installing it all and it DID work great for 2 years of limited use. I spent most of the day today reading posts were JodysTransmissions's has some wicked great input. Now I'm not sure if I need the McLeod Throwout Bearings 16505 or the adjustable pivot ball or both or none. Only because I haven't torn it all back down and measured.

OKAY, if you are still with me...the 614018 Precision Clutch Release Bearing is NOT centered and HAS side to side deflection. Although it spins great, the fact that I can move the outer race/circle, whatever is freaking me out.

Idea's, what other information is relevant? P.S. I guess I'm just looking for "You don't have 4.75 and this is ruining the throw-out bearing" ...??
Just playing the Devil's advocate but you know this how? Just because the transmission may be a fresh rebuild doesn't make it a correct rebuild.

Dave
USAF Retired (1968-1988)
UTC Aerospace Systems, Space Systems International - Retired (1989-2014)
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post #7 of 25 (permalink) Old Apr 25th, 17, 8:11 AM Thread Starter
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Darren
 
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Re: Another mixed up mess.

All good Dave, I took the M-20 back over to Al's house yesterday and we torn it apart. You probably don't know Al but he use to own Corvette specialist here in Omaha and he's been rebuilding muncies for over 30 years. The brass ring is fine.
Saltherring likes this.

If you donít push the limits how are you going to find the weak spots?
USMC- Retired
My car: 1970 Chevelle

Factory 12 bolt /4-Speed Malibu -Dual stage wet nitrous with heater & purge - Holley Strip Dominator, Speed Demon 750 CFM - (All MSD distributor, blaster 3 coil, 6AL, & 3 stage retard) - 4 wheel disk brakes - Aeromotive Fuel system Ė Boss 338 18ís - BMW 5.25 true HID projector mod - and of course... the FLAPPER - bla, bla, bla.. lots of other expensive stuff I canít remember
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post #8 of 25 (permalink) Old Apr 25th, 17, 8:34 AM
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Cory
 
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Re: Another mixed up mess.

Quote:
Originally Posted by 70 nialator View Post
OKAY, if you are still with me...the 614018 Precision Clutch Release Bearing is NOT centered and HAS side to side deflection. Although it spins great, the fact that I can move the outer race/circle, whatever is freaking me out.
The clutch release bearing's side to side movement is designed into the bearing housing to facilitate easier installation of the the transmission - allows some wiggle room so the pilot shaft can line up with the pilot bearing in the crankshaft flange.

'66 SS 396 #'s match/ POP - Aztec Bronze / Bronze Interior
'66 Malibu 454 Cortez Silver / Maroon Interior
'37 Chevy Coupe 235 Straight 6 - Cabana Cream`
'55 Chevy Gasser - 427, 4 speed
'72 Cutlass Supreme - Gold/White
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post #9 of 25 (permalink) Old Apr 25th, 17, 9:36 AM Thread Starter
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Darren
 
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Re: Another mixed up mess.

Cory I just want to make sure we are on the same page, you are saying this is normal?


If you donít push the limits how are you going to find the weak spots?
USMC- Retired
My car: 1970 Chevelle

Factory 12 bolt /4-Speed Malibu -Dual stage wet nitrous with heater & purge - Holley Strip Dominator, Speed Demon 750 CFM - (All MSD distributor, blaster 3 coil, 6AL, & 3 stage retard) - 4 wheel disk brakes - Aeromotive Fuel system Ė Boss 338 18ís - BMW 5.25 true HID projector mod - and of course... the FLAPPER - bla, bla, bla.. lots of other expensive stuff I canít remember
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post #10 of 25 (permalink) Old Apr 25th, 17, 9:48 AM
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Vince
 
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Location: Los Lunas, NM
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Re: Another mixed up mess.

Quote:
Originally Posted by 70 nialator View Post
1. It was all working perfect, all fresh build, all new parts with about 1,500 miles on them.
Problem: started grinding going into FORTH gear. This is the only thing wrong. (everything you read says brass ring is jacked, it's not)

Lakewood bell
CFDF clutch
longer of the 2 "fixed" GM pivot ball
New stock replacement fork
614018 Precision Clutch Release Bearing <- what I think the problem is (and if it is why did it go bad so quickly?)

I have LOTS of pics I'm just not sure what is relevant. I read about this for hours before installing it all and it DID work great for 2 years of limited use. I spent most of the day today reading posts were JodysTransmissions's has some wicked great input. Now I'm not sure if I need the McLeod Throwout Bearings 16505 or the adjustable pivot ball or both or none. Only because I haven't torn it all back down and measured.

OKAY, if you are still with me...the 614018 Precision Clutch Release Bearing is NOT centered and HAS side to side deflection. Although it spins great, the fact that I can move the outer race/circle, whatever is freaking me out.

Idea's, what other information is relevant? P.S. I guess I'm just looking for "You don't have 4.75 and this is ruining the throw-out bearing" ...??
i don't like the excessive wear shown on the first photo of the TOB
also there is wear shown on the clutch diaphragm fingers
i suspect that the air gap is not sufficient with the clutch depressed
looks like it has been riding even when released and driving around???
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post #11 of 25 (permalink) Old Apr 25th, 17, 9:50 AM
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Cory
 
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Re: Another mixed up mess.

Quote:
Originally Posted by 70 nialator View Post
Cory I just want to make sure we are on the same page, you are saying this is normal?
Yes. Normal for that part number. Some part numbers don't have that feature. I've used both styles without any problems associated with them.

'66 SS 396 #'s match/ POP - Aztec Bronze / Bronze Interior
'66 Malibu 454 Cortez Silver / Maroon Interior
'37 Chevy Coupe 235 Straight 6 - Cabana Cream`
'55 Chevy Gasser - 427, 4 speed
'72 Cutlass Supreme - Gold/White
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post #12 of 25 (permalink) Old Apr 25th, 17, 10:34 AM
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Ole
 
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Re: Another mixed up mess.

Quote:
Originally Posted by 70 nialator View Post
All good Dave, I took the M-20 back over to Al's house yesterday and we torn it apart. You probably don't know Al but he use to own Corvette specialist here in Omaha and he's been rebuilding muncies for over 30 years. The brass ring is fine.
Yeah, some of us know Al. He built an M22 for me a few months back. One of these days I might actually have all the parts to assemble the car and see if the trans actually works! (just kidding, I'm certain it will work perfectly)

Here's hoping you can get to the bottom of your shifting issues.
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post #13 of 25 (permalink) Old Apr 25th, 17, 3:08 PM
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Glen
 
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Re: Another mixed up mess.

Is that bronze input shaft bushing worn out?

1968 Chevelle
468 BB
Muncie 4 Speed
12 Bolt Posi 3.31:1 Gears
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post #14 of 25 (permalink) Old Apr 25th, 17, 3:22 PM Thread Starter
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Darren
 
Join Date: Mar 2004
Location: Omaha, NE
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Re: Another mixed up mess.

Nope, if it were, would that cause it to grind going into forth?

If you donít push the limits how are you going to find the weak spots?
USMC- Retired
My car: 1970 Chevelle

Factory 12 bolt /4-Speed Malibu -Dual stage wet nitrous with heater & purge - Holley Strip Dominator, Speed Demon 750 CFM - (All MSD distributor, blaster 3 coil, 6AL, & 3 stage retard) - 4 wheel disk brakes - Aeromotive Fuel system Ė Boss 338 18ís - BMW 5.25 true HID projector mod - and of course... the FLAPPER - bla, bla, bla.. lots of other expensive stuff I canít remember
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post #15 of 25 (permalink) Old Apr 25th, 17, 3:59 PM
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Harold
 
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Re: Another mixed up mess.

grinds every time -at any rpm ? or only at high rpm fast shifts? Bellhousing been checked for centerline/flat /parallel ?
clutch releasing completely (will go into reverse with NO grind ?)
and yes, a worn pilot bushing can contribute to this problem

New paint but still far from complete
66 SS 396. now 427
4sp AC,PS,3.31 Posi,ft disc,11" r drum
86 Buick Grand National
will satisfy your need for speed but at a price...
And a bunch of other junk.
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