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  • GTHawk
    replied
    Originally posted by Daytona View Post
    I have a 64 Stude. 289 2 barrel carb. Stromberg 132.I have rebuilt this carb. and adj . The problem I have is at 15-20 mph. it wants surge. I can step on the pedal and it takes off like jet. and runs good. Any idea of what is causing this low speed surge?
    May be too much fuel pressure? Can cause surging. Electric fuel pump?? Check!!

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  • Daytona
    replied
    I will try that.

    - - - Updated - - -

    I wiil try that advice.

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  • altair
    replied
    Could be a warn cam.

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  • Daytona
    replied
    Originally posted by greyben View Post
    The main jets may be too lean or partially blocked. Acceleration opens the bypass jet making the mixture a little richer.
    I will double check,but I did clean very well with car b cleaner and use tag wire.

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  • greyben
    replied
    The main jets may be too lean or partially blocked. Acceleration opens the bypass jet making the mixture a little richer.

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  • Studevair
    replied
    Check the diaphragm on your vacuum advance sometimes when the are perforated they will cause a surge at lower steady speeds.

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  • Jeffry Cassel
    replied
    Is choke adjusted correctly? They can be very fussy. It is possible that if set too rich it could cause surging. Again, Good Luck. Surging can be frustrating. My Ford F One-Thirsty has done it off and on since new. I just speed up or slow down and attribute it to its being a Ford.

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  • Daytona
    replied
    I did have a nos carb on the car and it worked great. I wanted to use it on my Daytona Convert up north. That is why I rebuilt this one. Timing is fine, pcv works fine.

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  • Jeffry Cassel
    replied
    May not be carb. Does engine surge in neutral at the same RPMs it would turn at 20 mph? The WW carb is a good carburetor; the Autolite distributor not so much. Check the timing and check both the vacuum and mechanical advance. Throttle shaft OK? Had trouble with my WW on my 64. sent it to a national rebuilder and it was over choked and it leaked. Hope it is now finally fixed. I can remove it or reinstall it in about 2 minutes now! The pcv valve is hidden away in the back of the motor - is it ok? Good luck!

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  • Daytona
    started a topic Fuel System: Running rough

    Running rough

    I have a 64 Stude. 289 2 barrel carb. Stromberg 132.I have rebuilt this carb. and adj . The problem I have is at 15-20 mph. it wants surge. I can step on the pedal and it takes off like jet. and runs good. Any idea of what is causing this low speed surge?
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