Author Topic: Thread type to suit plunger A10 GF tank  (Read 450 times)

Online orabanda

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Thread type to suit plunger A10 GF tank
« on: 16.08. 2012 14:44 »
Hi All,
Can someone please confirm the thread type for the screws which secure the tank badges?

Online trevinoz

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Re: Thread type to suit plunger A10 GF tank
« Reply #1 on: 16.08. 2012 22:23 »
I reckon they are 5BA but others here think they are 1/8 BSW.
Both .125" D.
Look at the thread tables and you will find 5BA around 43 TPI and 1/8 BSW is 40 TPI.
I use 1/8 in lieu of 5BA in generator end plates because they are available whereas the odd size BA screws are getting very thin on the ground.

Trev.

Online orabanda

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Re: Thread type to suit plunger A10 GF tank
« Reply #2 on: 17.08. 2012 00:51 »
Trev
You are a font of knowledge; thank you!
Richard

Offline duTch

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Re: Thread type to suit plunger A10 GF tank
« Reply #3 on: 17.08. 2012 09:14 »
Hi Richard,
            Love to help, but same prob., and you're helping me -thanks!
              Trev's a lot more clued in than I, but when I cleaned out my, uh-oh wrong tank..47-speedo in..but it was the kneepad rubbers, and seemed to be either 1/4 bsc or bsf, and was looking at the badge holes and figured they may be 3/16" or 1/8 something, but shall take note.
  Cheers, dutch
Started building in about 1977/8 a on average '52 A10 -built from bits 'n pieces never resto intended -maybe 'personalised'
Have a '74 850T Moto Guzzi since '92-best thing I ever bought doesn't need a kickstart 'cos it bump starts sooooooooo(mostly) easy
Australia