<VV> OT: Thru Bolts from Corvair Generator or similar

Jim Becker jim.becker at verizon.net
Wed Feb 26 10:18:15 EST 2014

I have a pile of generators/starters etc. that is on its way to China 
whenever I pile it all on a trailer.  Unfortunately, I'm not anywhere near 
it right now to check any sizes.  #8 sounds kind of small for a 1/3 hp motor 
and even #10 sounds too small for any of the Corvair components.  Fastenal 
has bolts in a lot of the less common sizes, not sure about that long and 
that small a diameter.  Another option is to use threaded rod and put nuts 
on both ends.  Fastenal does have threaded rod of the needed sizes.  I 
haven't checked McMaster-Carr, but they are likely to have the same and 
maybe the bolts as well.

Threaded rod is likely to be your easiest solution.  For that application, 
you may want to check the material grade and try to get grade 5 if you can 
find it.

Jim Becker

From: "John Beck" <jb30343 at windstream.net>
Sent: Wednesday, February 26, 2014 8:31 AM
To: <virtualvairs at corvair.org>
Subject: <VV> OT:  Thru Bolts from Corvair Generator or similar

> Sorry about the off topic post but my fellow Corvair owners seem like a
> good place to turn with this.
> I burned up the electric motor on a small concrete mixer.  I found a
> nearly identical replacement motor; 48Y frame, 1/3 HP...  The only
> problem I see with it is that the threaded portion of the "thru bolts"
> on the new motor don't protrude past the nuts.  My mixer is designed to
> use these stud like protrusions to mount the motor.  The easy solution
> I'm hoping for is to find some longer "thru bolts".
> The original bolts in the new motor are 6 7/8" (not including the head)
>  and look like they are #8 or #10.  I'd have to remove one of the nuts
> to be 100% sure of the diameter and thread pitch.  I need bolts that are
> about 1/4"+ longer than the originals.  I don't have a Corvair generator
> lying around but it seems like the bolts on those in the ballpark of
> what I need.
> Anyone have some or know the dimensions or have a pile of dead electric
> motors in your garage or have a good idea on where I should look????  I
> found a manufacturer of these bolts on the internet.  I'm not looking to
> have them manufactured.  I just need four bolts of a workable size.
> Ideas welcome.  Many Thanks.  --J.B.

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