Fuel taps.

[KiwiGF]

another bodge  to get them to seal is to wind some ptfe tape around the piston so the cork is a tight fit over it, this increases the outside diameter of the cork a bit.

Im interested in the home made cork method,  I have a ready access to old wine bottle corks  how to drill the hole and get a smooth outside diameter etc, any tips please?

[BVSR]

Mike,

You are reading Draganfly page correctly but there is a mistake. According to BSA parts cataloque 65-8171s used with TT carbs, 42-8075s with monoblocs.

Markku

[Topdad]

Digger, I had the same problem ,infact i've just found a new set of corks and plungers in my drawer at work. reason being that I was going to use 'em but got fed up with the hit and miss of these taps and decided on a new set from Paul Goff ,excellent quality fitted 3 yrs ago no leaks ,no probs only cost just afew pence over £20 inc postage so can whole heartedly endorse them
www.norbsa02.freeuk.com/goffypetroltaps.htm  just checked ethanol proof voitol seal (whatever that is !!) £9.95 each plus £3.95 postage . I have no other contact with the firm except for being a very well pleased customer. cheers BobH

[chaterlea25]

Hi
Markku is correct,
Super Rocket has banjo type taps, 8075
RGS and goldie use the lever tap, 8171

John

[diggerjones]

I found a old brass tap that fitted. But then thought about filters,elbows etc. So ordered more corks, see how I get on. Next winter I will take pipes off if I remember.

[mikeb]

thanks Markku and John
i might go for the lever taps anyway on the SR - give up a bit or original for convenience

[mikeb]

come to think of it.... do the new 42-8075 taps still use cork? some say they are UK made but I don't see this detail listed.

Thanks

[1949BSA]

Hi mikeb,

are you shure, you have measured right your tank thread?

3/4"BSP has a thread dia of circa  26,4mm.

Michael

[duTch]

 
 Probably a typo?

 As I said earlier, I use gas cocks that I bought from a gas supply shop, and are much like 65-8171 but without the filter

[mikeb]

Michael - ok lets try that again - 3/8 BSP!
i've now got some 3/8 BSP to 5/16 BSP adapters from a plumber for the new lever taps and will fit them next time the tank is near empty - so i hope they fit!

[WozzA]

I had the same problem so I put the plunger's with the corks attached
in a pot of boiling water for 5 minutes on simmer,
it swells up the corks...  & No more drips..   

Note:  do it when the wife is out... 

[diggerjones]

Ok. Got new corks.  Had them soaking in petrol all week.  Now how do you get the corks on the plunger.
Thanks dylan

[bsa-bill]

on the end of the plunger pull out the pin in the centre of the washer that covers the end of the cork
if that's what you mean or have the corks swollen so much they are tight to push on, I have a spare set of two plungers with corks fitted sitting ready in a jar of fuel.

[diggerjones]

Sorry not sure what you mean. I have undone grub screw,took plunger out and pulled/ripped old cork off. The 2 parts I have are a brass plunger riveted to a nurled knob and the tap part that screws into tank.

[u28909z]

The brass plunger is punched out of the knurled part using a suitable pin punch. You can then push a new cork onto the brass plunger, push it back into the knurled part, and re rivet using a small ball pein hammer. This can usually be done 3 or 4 times until the brass piece gets too short to re rivet effectively.

Hope this helps

Arthur