<VV> Advice needed - loose throttle shaft

[Ron]

How about Loctite Weld or one of those type of fixes?
RonH

----- Original Message ----- 
From: "Harry Yarnell" <hyarnell1 at earthlink.net>
To: "'chuck mckinley'" <cmckinley313 at verizon.net>; "'VirtualVairs AA'" 
<virtualvairs at corvair.org>
Sent: Wednesday, February 01, 2012 12:31 PM
Subject: Re: <VV> Advice needed - loose throttle shaft


> This is a common problem. The throttle shaft is brass. It has two flats on
> the end that fit into the throttle bellcrank and swedged on. They have a
> habit of coming loose like yours.
> A quick and dirty 'repair' is to ball peen the swedge back into a holding
> pattern; to tighten it up.
> Something tells me you can't braze the shaft/belcrank; that maybe the 
> shaft
> is phosphor bronze or some other alloy.
> Thought I tried this once decades ago with disastrous results. YMMV
>
> -----Original Message-----
> From: virtualvairs-bounces at corvair.org
> [mailto:virtualvairs-bounces at corvair.org] On Behalf Of chuck mckinley
> Sent: Wednesday, February 01, 2012 2:41 PM
> To: VirtualVairs AA
> Subject: <VV> Advice needed - loose throttle shaft
>
> Friends,
> While attempting to finish my major tuneup today I discovered my
> engine
> is basically idling only on the left carburetor, and tracing the problem
> revealed that the throttle lever on the right carburetor is extremely
> loose on the throttle shaft, to the point where even turning the idle
> adjustment screw in as far as it will go, it doesn't actually open the
> throttle. The throttle lever appears to be attached to the shaft by a
> brass cap that looks a little like a TV screen, and I can't tell whether
> it's pressed in, screwed in, or what. My questions are:
>
> 1. Is there a way to tighten this brass gadget to eliminate the rotation
> of the throttle lever on the shaft? That would cure my problem. I tried
> (very gently!) to twist it, in case it's screwed in, but I didn't want
> to put much force on anything for fear of messing up the throttle shaft,
> which appears to be quite sound. I also tried gently peening the brass
> cap, but that accomplished nothing because I wasn't applying much
> energy.
>
> 2. If I get a new throttle shaft from Clark's, I presume I'd still have
> to remove the throttle lever and reinstall it on the new shaft, so in
> any case I need to know how to get the lever off the shaft. I suspect I
> could just grind off the little brass cap from the existing shaft, but I
> hate to use such irreversible methods.
>
> 3. I think a cheap trick might be to get a longer idle speed adjustment
> screw that would allow me to screw it in farther than the stock screw,
> but that seems like an irresponsible workaround that might lead to other
> problems.
>
> 4. I've got a small welding set that I could use to braze the cap to the
> throttle shaft, but that also seems like an unpardonable (and
> irreversible) cheat.
>
> I'm sure some of you have been through this exercise and know the
> answer, so please advise!
>
> Thanks,
> Chuck McKinley
> 63 Monza 900 80 hp 3-speed
>
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