Manual Throttle - The 1947 - Present Chevrolet & GMC Truck Message Board Network

BartK10 · 08-04-2008, 03:09 PM

My truck was originally equipped with a manual throttle on the dash under the wiper knob. The throttle still works, but it operates very hard and when I try to use it, I end up pulling off the knob and stripping the set screw. Does anyone know how to make it operate more freely?

Riveted1 · 08-04-2008, 03:18 PM

Lubricate it?

**CPNE** · 08-04-2008, 03:24 PM

It is a screw mechanism and you turn it. Counter clockwise moves it out (higher rpms), clockwise move it in (lower rpms). I usually operate mine by pressing the gas pedal to approximately where I want the rpms then turning the hand throttle far enough to hold it there. The I fine tune accordingly. Mine is adjusted so that when all the way in, it is tight against the linkage but does not impede it's forward or backward movement. In this way you don't have to turn it too many revolutions to get it to "set".

BartK10 · 08-04-2008, 03:31 PM

Quote:

Originally Posted by CPNE

It is a screw mechanism and you turn it. Counter clockwise moves it out (higher rpms), clockwise move it in (lower rpms). I usually operate mine by pressing the gas pedal to approximately where I want the rpms then turning the hand throttle far enough to hold it there. The I fine tune accordingly. Mine is adjusted so that when all the way in, it is tight against the linkage but does not impede it's forward or backward movement. In this way you don't have to turn it too many revolutions to get it to "set".

Thanks for the help. Never tried screwing it out or in, just assumed it was a push/pull knob. I suppose I ruined it now though. LOL, just my luck.

Sammy · 08-04-2008, 03:20 PM

PB Blaster

**Yukon Jack** · 08-04-2008, 03:54 PM

Hmm, the factory manual throttle that is on my 69 K20 is a push pull kind of one.

**CPNE** · 08-04-2008, 04:11 PM

Quote:

Originally Posted by Yukon Jack

Hmm, the factory manual throttle that is on my 69 K20 is a push pull kind of one.

The one I use is a 71/72 and attaches to the cable linkage at the pedal, not to the rod outside the firewall.

BartK10 · 08-04-2008, 04:46 PM

Quote:

Originally Posted by CPNE

The one I use is a 71/72 and attaches to the cable linkage at the pedal, not to the rod outside the firewall.

Mine attaches to the linkage at the pedal as well.

**Yukon Jack** · 08-04-2008, 05:14 PM

Quote:

Originally Posted by CPNE

The one I use is a 71/72 and attaches to the cable linkage at the pedal, not to the rod outside the firewall.

I see, guess that makes sense given the different way that the pedal works.

08-04-2008, 03:09 PM	#1
BartK10 Registered User Join Date: Mar 2008 Location: Bismarck, ND Posts: 17	Manual Throttle My truck was originally equipped with a manual throttle on the dash under the wiper knob. The throttle still works, but it operates very hard and when I try to use it, I end up pulling off the knob and stripping the set screw. Does anyone know how to make it operate more freely?

08-04-2008, 03:18 PM	#2
Riveted1 Tasty Cakes! Join Date: Apr 2003 Location: Gilbert, AZ Posts: 2,112	Re: Manual Throttle Lubricate it? __________________ I'm a little and a lot Ground beef: A cow with no legs. ---------------- '66 Chevy SWB "Penny" '67 Chevy Big Window SWB- aka "Pearl" '72 Burb- "Betty" "It's not a hearse dammit" '99 Chevy Ext. cab Silverado

08-04-2008, 03:24 PM	#3
CPNE Resident Curmudgeon Join Date: Dec 1999 Location: NH Posts: 6,662	Re: Manual Throttle It is a screw mechanism and you turn it. Counter clockwise moves it out (higher rpms), clockwise move it in (lower rpms). I usually operate mine by pressing the gas pedal to approximately where I want the rpms then turning the hand throttle far enough to hold it there. The I fine tune accordingly. Mine is adjusted so that when all the way in, it is tight against the linkage but does not impede it's forward or backward movement. In this way you don't have to turn it too many revolutions to get it to "set". __________________ Currently on or near the homestead: 67 Chevy SWB 2WD stepside 350/3 on tree (Pat's) 67 GMC SWB 2WD Fleet 402/auto (Brian's under construction) 67 Chevy 3/4 ton 2WD 402/auto (Business Hauler) 67 Chevy 1 ton dually 2WD 396/4 speed (Former business hauler, Needs TLC) 68 Chevy 1/2 ton Suburban 2WD 250 six/3 on tree (Brian's Needs TLC) 70 Chevy 3/4 ton 4WD 350/4 speed (Pat's - Disguised as a 68 GMC) 71 Chevy SWB stepside (Crushed by tree - parts donor) 72 Chevy 3/4 ton 4WD (Parts donor) 72 Chevy 3/4 ton 4WD Suburban (Parts Donor) 72 GMC 3/4 ton 4WD 292 six/4 speed (Mine - Disguised as a 67 GMC) 81 GMC 4WD Dually Dump Body 350/4 speed (Business Hauler) 82 Camaro Z/28 355/Super T-10 (Pat's toy) 93 Caprice 9C1 (Brian's Cop Car) 02 Toyota Camry (Reliable but a souless steel and plastic hulk) 2011 2SS RS Camaro M6 Factory Hurst Shifter Maybe I need to sell some of this crap Yet another Bozo with a sawz-all

08-04-2008, 03:20 PM	#5
Sammy Registered User Join Date: Apr 2000 Location: Bonne Terre, Mo Posts: 3,005	Re: Manual Throttle PB Blaster __________________ '69 Chevy Long Fleet & '71 GMC Short Step & Project "ODD BALL" "You can wash a pig, soak it in most expensive perfume. In the end it is still just a pig." ODD BALL build thread http://67-72chevytrucks.com/vboard/s...d.php?t=478629"

08-04-2008, 03:54 PM	#6
Yukon Jack Post Whore Join Date: Feb 2000 Location: Rose Hill, KS, USA Posts: 12,686	Re: Manual Throttle Hmm, the factory manual throttle that is on my 69 K20 is a push pull kind of one. __________________ 1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14



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