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12-21-2011, 11:09 PM | #26 |
My Carbon Footprint
Join Date: Oct 2008
Location: Orygun
Posts: 5,527
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Re: 10 dollar 10 minute eddy return spring
This is just a FOR WHATEVER IT'S WORTH. On a daily driver, this is a great way to ruin the throttle shaft bore. When you wonder why the Q-jets get a shaft that feels like it is about to fall out because it is egg shaped, this is why.You already have constant pressure against the back of the throttle shaft bore from the pressure of the throttle cable/linkage. When you then have the added pressure of the return spring pulling toward the back of the shaft bore too, you get a nice digging in affect. Not as big of a deal on a low mile hot rod or race vehicle but a DD has constant pressure front the top and the bottom working against that aluminum. Taking into account that the shaft itself is steel, the aluminum bore shaft is the one that loses. Having the return spring on the front is the "correct" way to do it. Problem is that it doesn't look real sanitary. Funny thing about the Holley style bracket that the OP has pictured is that if fits way better on the Edelbrock than it does the Holley. Most of those brackets go WAY past the point of centered on the primary bracket and puts the springs and an angle/bind. I had to cut out about 1" on my Camaro so it would line up with the bracket.
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12-21-2011, 11:25 PM | #27 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Re: 10 dollar 10 minute eddy return spring
that is a real good point. I've personally never had that issue with the shaft, but I've never had a carb more than a few years old.
At oine point, I had the throttle spring hooked to the rod on the firewall that hooks to the pedal, but scrapped that idea. |
12-21-2011, 11:46 PM | #28 |
My Carbon Footprint
Join Date: Oct 2008
Location: Orygun
Posts: 5,527
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Re: 10 dollar 10 minute eddy return spring
It's kind of a small thing but I just wanted to throw it out there because I know a lot of guys didn't know this. When you think of how many Q-jets have 100,000+ miles on them, that is a lot of pulls on the trigger towards the back. You don't tend to see it as much on a Holley because they are often mentally thought of as an aftermarket "performace" carb and there are not nearly as many of them on daily drivers. Funny too because I have felt a lot of brand new Holleys that had more throttle play than other used ones I have had. Hands down the billet base carbs tend to have little to no wear. I am impressed at how little runout the pruple proform base plates tend to have. Granted, they have not been on the market all that long but tend to be much tighter than a new Holley.
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08-03-2012, 12:54 AM | #29 |
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Join Date: Sep 2010
Location: Marble Falls, TX
Posts: 1,575
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Re: 10 dollar 10 minute eddy return spring
Wow, I've been looking for something like this. Before I pulled me engine out I had a spring routed to a manifold bolt but it jammed on the idle screw at WOT. Never could figure out a bracket that actually worked, looked ok, or was cheap. Thanks for posting this! More eddy people need to see this.
I know this is an old thread lol.
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Michael Re-starting the neglected '77...http://67-72chevytrucks.com/vboard/s...=425464&page=9 |
08-05-2012, 03:52 PM | #30 |
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Join Date: Jul 2009
Location: washington
Posts: 4,178
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Re: 10 dollar 10 minute eddy return spring
Eventually you will want to ditch that 4 hole spacer that kills power and the iron intake and run and edelbrock intake. Everything will look better and run better too.
Craigslist yields some great deals for these things Posted via Mobile Device
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08-06-2012, 02:47 PM | #31 |
My Carbon Footprint
Join Date: Oct 2008
Location: Orygun
Posts: 5,527
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Re: 10 dollar 10 minute eddy return spring
HUH? The 4 holes spacer is usually one of the best and cheapest improvements you can make on the intake side of your air pump. I'd ditch the intake and run the 4 hole with the Eddy. If you are talking about the pic with the black intake, MOST aluminum spacers are actually open which is not a good thing to run on any dual plane. You need the black Phenolic style plastic 4 holer.
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08-06-2012, 03:46 PM | #32 |
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Join Date: Jun 2011
Location: GA
Posts: 281
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Re: 10 dollar 10 minute eddy return spring
Lots of good info in this thread. Thanks to those that take time to share your knowledge with others.
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08-06-2012, 05:32 PM | #33 | |
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Join Date: Oct 2010
Location: Ocean Springs, MS
Posts: 1,746
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Re: 10 dollar 10 minute eddy return spring
Quote:
I've got a 4 hole spacer between my Edelbrock carb and quadrajet intake, and it works great. Tried the open spacer, not so good!
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