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#1 |
Eat My Rust
Join Date: Jan 2007
Location: Cypress, Texas
Posts: 3,362
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McGyvering the throttle linkage... Sweeet
My throttle cable snapped when turning off huffmiester onto cypress church. Hit the gas, and the pedal fell off (not uncommon, my gas pedal isn't properly mounted), so I goto put it back on, and hit the gas, but it's on teh floor! Take the pedal off, and hit the throttle arm, and it's on the floor! I idle over to a gravel road, and pop the hood. My dad suggests over the phone to use a shoes string. Tied a loop around the throttle arm, and tied a knot on the carb's throttle plate. The shoe string stretched so much that top speed was 40 miles per hours, and it took nearly a minute to reach there... You could say I had good MPG!
My dad and neighbor's suggestion for a better temp fix, a coat hanger... and... Hey, the throttle is more responsive than it was with the stock cable!!! Time to look into a linkage setup. ![]() ![]() "Shoe String Budget" ![]() Where's a cheap cable replacement, or even a cheap universal linkage setup I can get? |
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#2 |
Registered User
![]() Join Date: Nov 2007
Location: Turlock California 95380
Posts: 2,075
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Re: McGyvering the throttle linkage... Sweeet
I dont think I would of believed it, without those pictures
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72 C20 Longbed 05 1500 Z71 |
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#3 |
Eat My Rust
Join Date: Jan 2007
Location: Cypress, Texas
Posts: 3,362
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Re: McGyvering the throttle linkage... Sweeet
I just need a new pedal, the cups for the ball studs broke. Occasionally if I floor it with out my foot being on the center of the pedal it will slip, or if I knock into it. Not a problem driving like a normal person though.
I'll lookinto the Lokar setup... Gotta be CHEEEEEP though for me... Just spent a good chunk of change of a 550 mile round trip for a cab. |
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#4 |
Senior Member
![]() Join Date: Jul 2004
Location: Estherville, Iowa
Posts: 3,371
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Re: McGyvering the throttle linkage... Sweeet
That is a 69 cab/truck right ? 67-70 used a full mechanical linkage, 71-72 used a cable that went all the way from the pedal to the carb.
It looks from the picture that you already have the year correct mechanical linkage from the pedal on out. Looks like someone just added a piece of cable to make the carb hookup. All you need is the rest of the stock linkage, I'll see if I can find a pic.
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1968 C10 307 3spd Long Fleet ------ http://67-72chevytrucks.com/vboard/s...d.php?t=201103 1970 C10 305 Super T10 Long Fleet --- http://67-72chevytrucks.com/vboard/s...d.php?t=202285 1971 C20 383 TH350 Dana Posi ----- http://67-72chevytrucks.com/vboard/s...d.php?t=206894 2001 GMC Sierra 1500 C3 6.0 |
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#5 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: McGyvering the throttle linkage... Sweeet
69/70 is the exact same as 67/68... his was somewhat hodge podged
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#6 |
blood type; Retumbo
Join Date: Jan 2004
Location: next to my reloading bench
Posts: 10,269
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Re: McGyvering the throttle linkage... Sweeet
when I swapped to a V8 I re-did my linkage. I used some 1/4" rolled steel, threaded one end, put on a ball-stud deal from NAPA, measured to the pedal, and bent the end to 90*. I used the original clip at the pedal. you can get the clip new if you look in the Dorman hardware catalog.
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#7 |
is Certifiable
Join Date: Feb 2008
Location: Hinesville, Georgia
Posts: 160
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Re: McGyvering the throttle linkage... Sweeet
I'd run it like that until it broke, and I'd keep and extra coat hanger behind the seat for a replacement. Haha
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1972 Chevy C10 LWB 350 Auto Blue with a white roof. |
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#8 |
Eat My Rust
Join Date: Jan 2007
Location: Cypress, Texas
Posts: 3,362
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Re: McGyvering the throttle linkage... Sweeet
http://www.speedwaymotors.com/Alumin...-Rod,1604.html Thinking of just grabbing this, shortening, retapping, and never have the problem again.
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#9 |
more ideas than money
Join Date: Dec 2008
Location: spring grove, pa
Posts: 1,068
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Re: McGyvering the throttle linkage... Sweeet
Thats great! I thought shoe laces could only be used when your wipers stop working.
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![]() 1948 Chevy 3100 5 window 1966 Chevy C30 Dually 1967 Chevy K10 1972 Chevy K20 1972 Chevy C10 1972 Chevy K5 Blazer 1987 Chevy V10 2003 Chevy Suburban |
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#10 |
Registered User
Join Date: Jul 2003
Location: Cypress, Tx
Posts: 4,005
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Re: McGyvering the throttle linkage... Sweeet
Be cautious of running rods for linkage. My Bel Air Stuck wide open when the motor mount broke and the motor twisted, putting the linkage in a bind so that it wouldn't release. Drove it straight into a tree before I could shut her down!
![]() Great ingenuity though! Shawn
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1972 C20 Suburban- Big Blue Betty '56 Chevy Bel Air Sedan- Frame up Restoration -What would you attempt to achieve if you knew you could not fail?- -I Refuse To Tiptoe Through Life, Only To Arrive Safely At Death's Door- R.I.P. EAST SIDE LOW LIFE Last edited by jorgensensc; 09-01-2009 at 11:03 AM. |
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#11 |
Eat My Rust
Join Date: Jan 2007
Location: Cypress, Texas
Posts: 3,362
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Re: McGyvering the throttle linkage... Sweeet
What style linkage did you do? This comes with mini Heim Joints, same style used in a 4-link of a rock crawler. Very bind free on the big scale.
Gotta goto school today... Have my extra coat hanger and pliers in hand. ![]() Last edited by texanidiot25; 09-01-2009 at 11:09 AM. |
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#12 | |
blood type; Retumbo
Join Date: Jan 2004
Location: next to my reloading bench
Posts: 10,269
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Re: McGyvering the throttle linkage... Sweeet
Quote:
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#13 |
is Certifiable
Join Date: Feb 2008
Location: Hinesville, Georgia
Posts: 160
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Re: McGyvering the throttle linkage... Sweeet
Its not so much about the joints getting stuck, but the rod bending. In an accident where the motor get shook real bad, or like jorge said if a motor mount breaks. If that rod gets bent, the throttle is open if not wide open. A lot of classes in racing have gone to cable only for the throttle, for this exact reason.
You should definitely run a cable. If you don't like the quality of them, with those little crimped ends. Then you can make your own.
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1972 Chevy C10 LWB 350 Auto Blue with a white roof. Last edited by joedoozer; 09-02-2009 at 07:54 AM. |
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#14 |
Senior Member
![]() Join Date: Jul 2004
Location: Estherville, Iowa
Posts: 3,371
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Re: McGyvering the throttle linkage... Sweeet
Yes you could run a complete cable setup from a 71-72 truck, that would be safer, but it is not a bolt in deal. Some cab surgery is required, GM changed the holes in the cab when they went to the cable style.
If the motor mounts have ever been changed it is likely that they have the new improved style where there is an interlock built into the mount. In case the rubber seperates the metal tabs keep it from coming clear apart. This interlock is covered by the rubber of the mount, but it is in there. The original mount were just a rubber biscuit of sorts and would come apart in two pieces when they failed. If you are worried about it you could get some newer style 73 up mounts and brackets or aftermarket setup or some ureathane mounts. But the stock replacements now have the interlock as mentioned above. Or get a short lengh of chain and connect between the block and the frame on the left side. I would stay with the plan you are on and get or make some kind of rod in there. Much easier than doing cab surgery IMHO. It looks from the pics like the ball stud on the carb is riveted on there, if you could remove that ball stud or use one of the other holes on the carb linkage, that might give you more options.
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1968 C10 307 3spd Long Fleet ------ http://67-72chevytrucks.com/vboard/s...d.php?t=201103 1970 C10 305 Super T10 Long Fleet --- http://67-72chevytrucks.com/vboard/s...d.php?t=202285 1971 C20 383 TH350 Dana Posi ----- http://67-72chevytrucks.com/vboard/s...d.php?t=206894 2001 GMC Sierra 1500 C3 6.0 Last edited by Green Machine; 09-02-2009 at 08:19 AM. |
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#15 |
Eat My Rust
Join Date: Jan 2007
Location: Cypress, Texas
Posts: 3,362
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Re: McGyvering the throttle linkage... Sweeet
Calling NAPA today, found out they carry the cable's (for once, an autozone employee was helpful, knew what part I was talking about and all, just didn't have it in store any more). If the price is about the same I'm thinkin rod setup. I just like the hair finer feel of the throttle. And that's with a coat hanger for christs sake!
![]() The motor mounts are brand new ones from NAPA installed less than a year ago, I think she'll be fine. Plus, with mini heim joints binding shouldn't be an issue... When the mount breaks and the motor jumps up, a cable is going to pull on the throttle just like a rod I figure. Last edited by texanidiot25; 09-02-2009 at 01:27 PM. |
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#16 | |
is Certifiable
Join Date: Feb 2008
Location: Hinesville, Georgia
Posts: 160
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Re: McGyvering the throttle linkage... Sweeet
Quote:
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1972 Chevy C10 LWB 350 Auto Blue with a white roof. |
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