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04-08-2020, 12:14 PM | #1 |
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Join Date: Mar 2016
Location: Lynden, WA
Posts: 1,564
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Holley 94 throttle shaft project.
I've been trying to build up two carbs for a dual setup up. Everything from my stash needs a oversize throttle shaft. I was just about to order another shaft kit when I thought about repairing the old one. I was able to remove the peened over backs of the plate screws without destroying anything so thought I'd give it a try. Since the replacements tell you to use to 9/32 drill to bore out the body I used 9/32 brass tubing. I turned the old shaft down on each end. I'm using the end opposite the throttle linkage as a bushing so it's a slip fit, the other side a slight press fit. It's trapped so it can't go anywhere anyway. I didn't bore out the body, I spun the shaft and gently took material off with 400 wet/dry with a little oil on it until I got the fit I wanted. The bushing was a slight press fit with a couple drops of "sleeve retainer". I drilled the shaft for 6-32 threads and hold it all together with a screw, lock, and flat washer. I spent all afternoon doing this, could've just bought a new shaft for $28 shipped, but it was a fun project. I can't let Mart have all the fun.
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04-08-2020, 12:17 PM | #2 |
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Location: Solihull, England.
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Re: Holley 94 throttle shaft project.
Excellent job, Art.
Mart. |
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04-08-2020, 12:27 PM | #3 |
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Join Date: Mar 2016
Location: Lynden, WA
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Re: Holley 94 throttle shaft project.
Thanks Mart, a very satisfying DIY project.
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04-08-2020, 01:27 PM | #4 |
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Join Date: Dec 2013
Location: Minnesota, Florida Keys
Posts: 10,316
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Re: Holley 94 throttle shaft project.
I think you did the right thing. The last oversize throttle shafts I installed (from Ecklers "Mac's") had crappy levers on the end. I ended up removing them and reworking the shafts to use the original levers. It came out fine, but I like what you did.
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04-08-2020, 03:48 PM | #5 |
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Join Date: Nov 2015
Location: North Pole, Alaska
Posts: 2,651
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Re: Holley 94 throttle shaft project.
Great job!
I’m not lucky enough to have a lathe so I ended up ordering the speedway shafts. Like you Tubman I reused the original levers. I have rebuilt seven of them this way and they all worked out really good. |
04-08-2020, 05:42 PM | #6 |
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Join Date: Jun 2010
Location: Detroit suburb, MI
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Re: Holley 94 throttle shaft project.
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Sal |
04-08-2020, 06:01 PM | #7 |
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Join Date: May 2010
Location: Meredith, N.H.
Posts: 766
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Re: Holley 94 throttle shaft project.
Very nice work. I regret I sold my lathe a short time ago. Think I need another as I miss it !
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04-08-2020, 06:33 PM | #8 |
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Join Date: Jul 2012
Location: Bellingham, WA
Posts: 213
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Re: Holley 94 throttle shaft project.
Good job Art! Should work nicely.
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04-08-2020, 09:34 PM | #9 |
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Join Date: Mar 2016
Location: Lynden, WA
Posts: 1,564
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Re: Holley 94 throttle shaft project.
Shaft number 2 today.
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