[Fot] HS6 float bowl attachment bolt

Duncan Charlton duncan.charlton54 at gmail.com
Mon Feb 17 14:24:03 MST 2014


Greg,

In the short term you might be able to get the bolt as an AN aircraft 
bolt from an Fastenal (they have a few locations in Austin). AN hardware 
is typically grade 5 and includes shouldered bolts, close tolerance 
bolts, etc. including some pretty unusual shapes and sizes.

Duncan

On 2/17/14, 12:01 PM, Greg And Alison Blake wrote:
> Eagle eye Pops caught a serious oversight on my part the other day. We were
> working on safety improvements on the 3 and he happened to look under the
> hood. The rear float was dangling by the fuel supply and safety wired jet
> tube, the bolt that attaches it to the carb body was missing. This might
> explain the slight miss I experienced on the last few laps at TWS in
> December.
>
> I heard from a few tractor motor racers that they have had a similar issue. So
> questions for the list:
>
> How many have found this problem?
> Where did the bolt shear?
> What did you do to keep it from happening again?
>
> BYW. Mine sheared just inside the threads of the float so I get to try and use
> an ease out to save the float bowl. Luckily Pops had a spare float bowl to put
> in service for this weekend. The bolt looks like a grade 5 7/16-20 x 2". I
> think the factor bolt had a shoulder diameter that matched the carb body. That
> might help support the bolt by reducing the length it cantilevers from its
> support point. I don't know if the original bolts are available.
>
> Thanks in advance.
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