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Carb springs - is this safe???

Discussion in 'The Garage' started by RootBreaker, Jun 28, 2005.

  1. RootBreaker

    RootBreaker 3/4 ton status Premium Member

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    Ok so I put a holly truck avenger 670 on my truck.. however my gas pedal was like a rock. I replaced the 2 springs.. the little one that goes into the bigger one....

    anyhow.. when I did that it got a bit better but still like a rock....
    I tried lubing the cable but do feel it rub so I know that needs to be replaced.
    I removed the bigger spring and put the thin long one on...
    Is this safe? I thought both springs were like a safety thing...

    also when I had a q-jet and I only had 1 spring... the spring popped off and the motor reved high.... however I realize the holley truck avenger has self returns into it...


    just curious of yalls thoughts to if this is safe enough to make my warm and fuzzies come back....

    thanks
    Jeff

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  2. Mad-Dog

    Mad-Dog 1/2 ton status

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    That's a pretty heavy single spring ya got there,
    heavy springs are hard on the shaft bushings and will wear a carb out fast.
    Lighten up enough to decrease pedal pressure but ensure that there is enough tension to close the throttle plates whenm ya let off the go pedal...
     
  3. RootBreaker

    RootBreaker 3/4 ton status Premium Member

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    well that is 1 of 2 that come with the kit.. I have always used the "2" with q-jets.... these are replacement springs.. also that is the same as one of the old ones I took off...

    another guy running the truck avenger said you dont need a spring at all.. they close perfect by themselves and he drove it that way (not far) but said the pedal was TOOOOO easy...... :grin:
    so 2 people with the same situation....
    http://pavementsucks.com/forums/viewtopic.php?topic=74160
     
  4. ntsqd

    ntsqd 1/2 ton status

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    Particularly with Holleys, but true with any carb, putting the spring on the opposite side of the pedal linkage wears out the throttle shaft bore much faster than if it were up directly opposite the linkage.

    Two light springs would be better than one heavy one.
     
  5. surpip

    surpip 1 ton status

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    2 springs are required to pass NHRA tech. but other than that im not shure that you need them, I would however, bend the ends of the springs to enshure they wont come off.
     
  6. RootBreaker

    RootBreaker 3/4 ton status Premium Member

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    Thanks I was thinking about that... will do that...

    sorry you lost me there... are you saying that I do not want the spring in that location? do I want it to be across from it?
    Thanks
    Jeff

    p.s. Appreciate it...
     
  7. RustyParts

    RustyParts 1/2 ton status

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    Looks to me like the angle of the throttle cable is too straight, you might want to raise the connection to the carb. a little higher. The way it is connected now you have to mash the pedal harder to overcome that straight angle.
     
  8. ntsqd

    ntsqd 1/2 ton status

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    With the spring under the throttle shaft like that both the throttle cable and the spring are pulling the shaft against the back of the throttle shaft bore.
    If you move the spring to the top, then the cable and the spring are more in-line and the shaft bore won't wear out quite so fast.
     
  9. RootBreaker

    RootBreaker 3/4 ton status Premium Member

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    to move it to the top I would have to put the spring away from the cab... as that is above the centerpoint right? If I just move it to the top that will actually apply the gas pedal!!!!! :crazy:
     
  10. uglyangelracing

    uglyangelracing 1/2 ton status

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  11. RootBreaker

    RootBreaker 3/4 ton status Premium Member

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