[Tigers] Balance pipe nipple thread

[Allan Ballard]

Did all Tigers use the same fitting?

I should have been more specific in my earlier posting - Alpines changed
fittings  between the end of Series IV (1965) and the beginning of the last
series.

Is it reasonable to assume that the same balance pipes and changed fittings
were used on Tigers?

Or did the factory use the same pipe but with a different, Tiger specific
fitting..

Just my  $0.02 worth :)

Allan Ballard
Mk1a Tiger

Sent from my iPhone

On May 22, 2012, at 4:31 PM, " Ron Fraser" <rfraser at bluefrog.com> wrote:

> Tim
>    I believe the fuel line on my Tiger at the balance pipe is 5/16
> tubing.  I recall the tube nut was about 2x longer than the standard tube
> nut I could find so I reused the original; more threads, better contact.
>
> 5/16 tube nut thread is 1/2 - 24.
>
> If you have a thread gage you should be able to determine what thread you
> have.
>
> UNF = unified fine thread which is similar and compatible with fine thread
> in the USA
>
> Pipe thread generally has a taper but I believe there is also a British
> Parallel pipe thread.
>
> Additional info on threads and more
>
> http://www.britishfasteners.com/
>
> Ron Fraser
>
> -----Original Message-----
> From: tigers-bounces at autox.team.net [mailto:tigers-bounces at autox.team.net]
> On Behalf Of tim
> Sent: Tuesday, May 22, 2012 3:12 PM
> To: tigers at autox.team.net
> Subject: [Tigers] Balance pipe nipple thread
>
>
> Listers,
>
>
>
> The parts book calls for a 1/2" UNF tube with a compression sleeve where
the
> fuel line meets the balance pipe. I went through this with my Alpine and as
> I recall, the 1/2" UNF tube nut worked fine.
>
>
>
> The balance pipe I have for the Tiger seems to have a different thread. My
> local supplier was stumped and said it almost looks like a Whitworth
thread.
>
>
>
> Does anybody have insight into this? I bought the pipe on EBay as the
> original was trashed so it possibly came from a different model? I guess I
> could cut the nipple off and weld on a new one or find a different pipe
> altogether but I am still puzzled by this.
>
>
>
> Thanks,
>
> Tim
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