SBC dual disk clutch question - Competition Diesel.Com

Legendarydslper · 08-11-2009, 05:38 PM

Hey guys, I just got a 1999 2500, with a 5spd and SBC dual disk, with upgraded hydrolics, input shaft and flywheel. What I have notices about it, as it doesnt engage until it is almost all the way released. Also, it does not want to go into 3rd gear unless the RPMs dropped significantly, or downshifting.

The previous owner installed all of this less than 6k miles ago. I figured with a new clutch it would grab almost right off the floor.

Any input? I am new to manuals in diesels, especially dual disks.

j-rod · 08-11-2009, 05:45 PM

Do you have an adjustable pushrod on your hydraulics?

01smoker · 08-11-2009, 05:48 PM

Well as far as the engagement issue, you can adjust the rod on the clutch pedal to adjust when the clutch engages.

And the 3rd gear deal, the syncros are probably worn out.

Legendarydslper · 08-11-2009, 11:55 PM

I really was hoping it was the clutch causing the 3rd gear grind. Like i said it doesnt happen all the time. my buddies car did the same thing then he had his mechanic bleed the clutch and it stopped it. I assume it has the adjustable rod, how can I check? I am very new to manuals.

01smoker · 08-12-2009, 08:40 AM

On the back side of the clutch pedal there is a rod that is connected to the hydraulic assembly that is mounted on the firewall. If that rod is threaded with two jam nuts, then it is adjustable. Just pop out the pin that attaches the rod to the clutch pedal, loosen the jam nuts, then screw the clevis outward.

It may take a few times to get it right where you want it.

Legendarydslper · 08-12-2009, 11:06 AM

Thanks alot 01smoker

Any input on the 3rd gear issue?

displacedtexan · 08-12-2009, 11:51 AM

How many miles on the tranny? I'd bet it's the synchro...

Legendarydslper · 09-02-2009, 05:33 PM

300k miles on the trans

How much is a rebuild usually?

08-11-2009, 05:38 PM	#1
Legendarydslper Name: Legendarydslper Title: Too Much Time Status: Not Here Join Date: Nov 2008 Location: Clarkston/Kalamazoo Mi Member`s Gallery Posts: 1,840	SBC dual disk clutch question Hey guys, I just got a 1999 2500, with a 5spd and SBC dual disk, with upgraded hydrolics, input shaft and flywheel. What I have notices about it, as it doesnt engage until it is almost all the way released. Also, it does not want to go into 3rd gear unless the RPMs dropped significantly, or downshifting. The previous owner installed all of this less than 6k miles ago. I figured with a new clutch it would grab almost right off the floor. Any input? I am new to manuals in diesels, especially dual disks. __________________ 2010 Ram 3500 CCLB SRW Black- Billet S466/SD T4 Manifold and piping/20x12s/33x13.50s/Carli&Fox Suspension 2006 CCLB Black- "Lookin for a Hookup" 2.6 Pull truck project.

08-11-2009, 05:45 PM	#2
j-rod Name: j-rod Title: Up to no good Status: Not Here Join Date: Jun 2008 Location: PA Member`s Gallery Posts: 3,628	Do you have an adjustable pushrod on your hydraulics? __________________ Jared 14 CC LB 99 QC LB 01 TDI

08-11-2009, 11:55 PM	#4
Legendarydslper Name: Legendarydslper Title: Too Much Time Status: Not Here Join Date: Nov 2008 Location: Clarkston/Kalamazoo Mi Member`s Gallery Posts: 1,840	I really was hoping it was the clutch causing the 3rd gear grind. Like i said it doesnt happen all the time. my buddies car did the same thing then he had his mechanic bleed the clutch and it stopped it. I assume it has the adjustable rod, how can I check? I am very new to manuals. __________________ 2010 Ram 3500 CCLB SRW Black- Billet S466/SD T4 Manifold and piping/20x12s/33x13.50s/Carli&Fox Suspension 2006 CCLB Black- "Lookin for a Hookup" 2.6 Pull truck project.

08-12-2009, 11:06 AM	#6
Legendarydslper Name: Legendarydslper Title: Too Much Time Status: Not Here Join Date: Nov 2008 Location: Clarkston/Kalamazoo Mi Member`s Gallery Posts: 1,840	Thanks alot 01smoker Any input on the 3rd gear issue? __________________ 2010 Ram 3500 CCLB SRW Black- Billet S466/SD T4 Manifold and piping/20x12s/33x13.50s/Carli&Fox Suspension 2006 CCLB Black- "Lookin for a Hookup" 2.6 Pull truck project.

08-12-2009, 11:51 AM	#7
displacedtexan Name: displacedtexan Title: $500 PREMIUM MEMBER Status: Not Here Join Date: Feb 2008 Location: Mobilehoma Member`s Gallery Posts: 13,876	How many miles on the tranny? I'd bet it's the synchro... __________________ I talk loud.

08-11-2009, 05:48 PM	#3
01smoker Name: 01smoker Title: Diesel Enthusiast Status: Not Here Join Date: Nov 2006 Location: Central MO Member`s Gallery Posts: 961	Well as far as the engagement issue, you can adjust the rod on the clutch pedal to adjust when the clutch engages. And the 3rd gear deal, the syncros are probably worn out.

08-12-2009, 08:40 AM	#5
01smoker Name: 01smoker Title: Diesel Enthusiast Status: Not Here Join Date: Nov 2006 Location: Central MO Member`s Gallery Posts: 961	On the back side of the clutch pedal there is a rod that is connected to the hydraulic assembly that is mounted on the firewall. If that rod is threaded with two jam nuts, then it is adjustable. Just pop out the pin that attaches the rod to the clutch pedal, loosen the jam nuts, then screw the clevis outward. It may take a few times to get it right where you want it.

09-02-2009, 05:33 PM	#8
Legendarydslper Name: Legendarydslper Title: Too Much Time Status: Not Here Join Date: Nov 2008 Location: Clarkston/Kalamazoo Mi Member`s Gallery Posts: 1,840	300k miles on the trans How much is a rebuild usually? __________________ 2010 Ram 3500 CCLB SRW Black- Billet S466/SD T4 Manifold and piping/20x12s/33x13.50s/Carli&Fox Suspension 2006 CCLB Black- "Lookin for a Hookup" 2.6 Pull truck project.