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robtg wrote:

R90Steve wrote:

robtg wrote:

1/4 bsp x 19 threads come in tapered and parallel. I was given 2 petcocks from a Matchless Mattisse for an aluminum
fuel tank i built and my thread gages didn't have 19 tpi. Had to do some research on that.
.

FWIW, I just looked in my Aeroquip- How To Identify Fluid Ports And Connectors booklet and the PP fitting is frequently referred to as a G fitting and the SP a R fitting. So a 1/4 or 3/8-19 BPP can be referred to as a 1/4 or 3/8G and a SP as a 1/4 or 3/8-19R. Like I said, FWIW.
Oh and they were kind enough to include a 19TPI gauge with the Aeroquip gauges.

hools100RS wrote: With the top of this device just beneath the surface of the bearing carrier, I should be able to restake and secure it.

I'd leave at least 2mm from top of pin to surface of the bearing carrier........enough to allow for sufficient peening.
I guess it's not really peening, more like raising a burr.

robtg wrote:

Major Softie wrote:

ME 109 wrote:You guys are nuts.

Not me! As far as I know, there are no pipe thread nuts.

BSPP ---- British standard parallel pipe threads used on petcocks and bulkhead fittings use nuts.

Freakin' Brits! I shoulda known better than to think they wouldn't have done something like that.

Major Softie wrote:Freakin' Brits! I shoulda known better than to think they wouldn't have done something like that.

You made me remember what a mechanic friend in the 60's said about British sportscars -
"Made in England, the hard way."