Help-Detent cable confusion has me stuck - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Spoof · 03-12-2005, 11:52 PM

I'm trying to cobble together my 350 with Q Jet with a TH350 tranny from a 307 with a two barrel. I have a detent cable but I can't figure from which engine, it won't reach and even if it did I don't know hwere the puppy goes...even though I have three different manuals!! Can anyone tell from the pic if I need a new detent cable, different bracket or different Carb linkage thingy? All the pics I've seen have different style Q Jet throttle arms.
(thanks for the pics 71 Longbed, but not the same)

Thanks

70c10 · 03-13-2005, 12:43 AM

The linkage bracket looks strange to me for some reason. The throttle return springs looks crooked to me. Looks like you might need at least one more stud to attach the detent also. Did you unlock the tab before stretching it?

Spoof · 03-13-2005, 02:22 AM

Thanks for your input.
I don't believe the tab is unlocked...I'll try that in the morn.
I have a stud but I'm not sure where to place it. I'm just holding the detent cable in a rough position to where it should mount, but it doesn't seem to want to reach anywhere on the linkage that the throttle attaches to ( it's not hooked up in the pic)
As you say the return springs are sketchy indeed.

sdkid · 03-13-2005, 02:41 AM

Looks to me like the carb is not equipped to connect a kickdown cable to. I would have to look at mine tomorrow. Its a '70 though. You're not trying to hook it to the bracket on the carb stud are you? That looks like a throttle cable bracket to me.

JimKshortstep4x4 · 03-13-2005, 07:56 AM

It looks like someone has cut off the lower part of the accelerator linkage, (the part that has the connecting stud for the cable on it). Your cable slips onto the stud and there is a small groove for the retaining clip on hte stud.

Here is a pic.

Jim

70c10 · 03-13-2005, 11:03 AM

You should print JimKshortsep4x4's pic and take it to the junkyard to match it up to a bracket they might have. That little hole behind the front bracket is for the return spring.

Spoof · 03-13-2005, 02:07 PM

From what I can gather I have the wrong accelerator/detent bracket. Thanks for the help and Pic. TO THE JUNKYARD!

JimKshortstep4x4 · 03-13-2005, 02:42 PM

Spoof,

From what I can see of your detent bracket you have the right one. If you find that you need a bracket, they are avilable new yet from GM or other parts suppliers.

Jim

Spoof · 03-13-2005, 03:20 PM

Thnaks Jim,
Are you refering to the detent bracket that bolts to the intake manifold? If so I will stick with that and replace the carb accelerator/ detent arm with a different style. Do you think the carb linkage is available from an autoparts store?

JimKshortstep4x4 · 03-13-2005, 08:08 PM

Spoof,

The bracket that bolts to the manifold looks good to me.

You will probably have a problem locating the linkage as it is swedged to the shaft.

If you are handy at removing small broken screws I have a good baseplate that has two broken screws on the secondary shaft that you can have for shipping costs. Otherwise the primary plates can be removed and the shaft can be used on your carb plate. If you are interested I can give you more details on what is needed.

Otherwise another carb is an option.

Jim

Spoof · 03-13-2005, 10:18 PM

JimK...thanks for your neighbourly offer!
I'm thinking that the carb is an unknown to begin with I may just get a new one. If I take apart a Q jet it will likely never fuel another engine again!
The question is now, rebuilt Q jet...Edlebrock repro...holley, or dare to dream Speed demon?
Regardless, thanks for all the help guys, I think I've found the cause of the problem and I can move forward fron here.
Thanks again.

03-12-2005, 11:52 PM	#1
Spoof Registered User Join Date: Jul 2000 Location: Victoria,BC, Canada Posts: 1,300	Help-Detent cable confusion has me stuck I'm trying to cobble together my 350 with Q Jet with a TH350 tranny from a 307 with a two barrel. I have a detent cable but I can't figure from which engine, it won't reach and even if it did I don't know hwere the puppy goes...even though I have three different manuals!! Can anyone tell from the pic if I need a new detent cable, different bracket or different Carb linkage thingy? All the pics I've seen have different style Q Jet throttle arms. (thanks for the pics 71 Longbed, but not the same) Thanks __________________ 71 GMC 1500 LWB Last edited by Spoof; 03-12-2005 at 11:54 PM.

03-13-2005, 12:43 AM	#2
70c10 67-72 Addict! Join Date: Feb 2002 Location: The TAX State! Posts: 7,856	The linkage bracket looks strange to me for some reason. The throttle return springs looks crooked to me. Looks like you might need at least one more stud to attach the detent also. Did you unlock the tab before stretching it? __________________ Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads

03-13-2005, 02:22 AM	#3
Spoof Registered User Join Date: Jul 2000 Location: Victoria,BC, Canada Posts: 1,300	Thanks for your input. I don't believe the tab is unlocked...I'll try that in the morn. I have a stud but I'm not sure where to place it. I'm just holding the detent cable in a rough position to where it should mount, but it doesn't seem to want to reach anywhere on the linkage that the throttle attaches to ( it's not hooked up in the pic) As you say the return springs are sketchy indeed. __________________ 71 GMC 1500 LWB

03-13-2005, 02:41 AM	#4
sdkid Registered User Join Date: Sep 2004 Location: Pierre SD Posts: 1,533	Looks to me like the carb is not equipped to connect a kickdown cable to. I would have to look at mine tomorrow. Its a '70 though. You're not trying to hook it to the bracket on the carb stud are you? That looks like a throttle cable bracket to me. __________________ I think the world needs a drink... Help somebody...If you can....VanZant We're not wrong, we're not sorry, and its probably gonna happen again. That's the truth about men. Tracy Byrd Member# 13924 '70 c10, 350/350 '68 c10 250/4spd '68 c10 no eng/trans fac ps/pb/ac/at (future father/sons project) '48 Chevy Loadmaster

03-13-2005, 07:56 AM	#5
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	It looks like someone has cut off the lower part of the accelerator linkage, (the part that has the connecting stud for the cable on it). Your cable slips onto the stud and there is a small groove for the retaining clip on hte stud. Here is a pic. Jim Attached Images

03-13-2005, 11:03 AM	#6
70c10 67-72 Addict! Join Date: Feb 2002 Location: The TAX State! Posts: 7,856	You should print JimKshortsep4x4's pic and take it to the junkyard to match it up to a bracket they might have. That little hole behind the front bracket is for the return spring. __________________ Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads

03-13-2005, 02:07 PM	#7
Spoof Registered User Join Date: Jul 2000 Location: Victoria,BC, Canada Posts: 1,300	From what I can gather I have the wrong accelerator/detent bracket. Thanks for the help and Pic. TO THE JUNKYARD! __________________ 71 GMC 1500 LWB

03-13-2005, 02:42 PM	#8
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	Spoof, From what I can see of your detent bracket you have the right one. If you find that you need a bracket, they are avilable new yet from GM or other parts suppliers. Jim

03-13-2005, 03:20 PM	#9
Spoof Registered User Join Date: Jul 2000 Location: Victoria,BC, Canada Posts: 1,300	Thnaks Jim, Are you refering to the detent bracket that bolts to the intake manifold? If so I will stick with that and replace the carb accelerator/ detent arm with a different style. Do you think the carb linkage is available from an autoparts store? __________________ 71 GMC 1500 LWB

03-13-2005, 08:08 PM	#10
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	Spoof, The bracket that bolts to the manifold looks good to me. You will probably have a problem locating the linkage as it is swedged to the shaft. If you are handy at removing small broken screws I have a good baseplate that has two broken screws on the secondary shaft that you can have for shipping costs. Otherwise the primary plates can be removed and the shaft can be used on your carb plate. If you are interested I can give you more details on what is needed. Otherwise another carb is an option. Jim

03-13-2005, 10:18 PM	#11
Spoof Registered User Join Date: Jul 2000 Location: Victoria,BC, Canada Posts: 1,300	JimK...thanks for your neighbourly offer! I'm thinking that the carb is an unknown to begin with I may just get a new one. If I take apart a Q jet it will likely never fuel another engine again! The question is now, rebuilt Q jet...Edlebrock repro...holley, or dare to dream Speed demon? Regardless, thanks for all the help guys, I think I've found the cause of the problem and I can move forward fron here. Thanks again. __________________ 71 GMC 1500 LWB



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