Accelerator return spring
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Joined: Aug 2003
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From: Fort Worth TX
Accelerator return spring
I have a 327 4sp 300 hp with a wcfb carb. The accelerator return spring is connected to the oil fill tube. Is that correct or should it be connected to a manifold spring bracket? I'm putting on an orig thermostat housing and it seems like the flatter housing is going run right into the spring on the oil fill tube.
Team Owner
Joined: Oct 2000
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From: Washington Michigan
I have a 327 4sp 300 hp with a wcfb carb. The accelerator return spring is connected to the oil fill tube. Is that correct or should it be connected to a manifold spring bracket? I'm putting on an orig thermostat housing and it seems like the flatter housing is going run right into the spring on the oil fill tube.
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Joined: Aug 2003
Posts: 76
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From: Fort Worth TX
Thanks. I have a 3721sb carb. I get my afb & wcfb mixed up. The tab on the oil fill where the spring is attached just seems like it will be in the way.
Last edited by Cowtown Dave; Nov 2, 2015 at 12:32 PM.
Le Mans Master
Joined: Oct 2002
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From: Las Vegas - Just stop perpetuating myths please.
A lot of auto parts stores carry a "double spring" in the restoration parts section. The important item to verify here is that the throttle goes fully closed when u take the foot off and fully open when u floor the pedal. This is many times overlooked.
Something a lot of experienced carb owners use a "balance spring" that goes on the other side of the throttle lever arm but pulls the throttle in the shut direction only. This balances the force on the throttle shaft and hopefully reduces the wear on the carb body from a large double spring pulling on only one side of the throttle shaft. Ooops, i mean the throttle plate or carb base.
Hope this helps.
Something a lot of experienced carb owners use a "balance spring" that goes on the other side of the throttle lever arm but pulls the throttle in the shut direction only. This balances the force on the throttle shaft and hopefully reduces the wear on the carb body from a large double spring pulling on only one side of the throttle shaft. Ooops, i mean the throttle plate or carb base.
Hope this helps.
Last edited by cardo0; Nov 1, 2015 at 04:15 PM.
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From: Washington Michigan
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Joined: Aug 2003
Posts: 76
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From: Fort Worth TX
Perfect, I guess part two of my question is where should the spring attach at the carb? Mine is currently around the accelerator rod to the drivers side of the carb mechanism, I'm pretty sure that is not right. I have a correct accelerator rod on order.
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Joined: Aug 2003
Posts: 76
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From: Fort Worth TX
Here is my before. Getting off the oil tube is the answer! I also have a strange accelerator rod that is soon to be replaced, Thanks for all the help!!
picture hosting
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Le Mans Master
Joined: Feb 2014
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From: Richardson Texas
Dave,
The spring end that is wrapped around the accelerator rod should go thru the hole in the rod where you currently have a cotter key. Also, be sure you have the nylon bushing inserted thru the rubber bushing on the "hole side" of the accelerator rod
The spring end that is wrapped around the accelerator rod should go thru the hole in the rod where you currently have a cotter key. Also, be sure you have the nylon bushing inserted thru the rubber bushing on the "hole side" of the accelerator rod