Does anybody have any advice as to how to fit new corks to Ewarts fuel tap plungers? I'm looking at the plungers, then looking at the corks and thinking
'how the flinking blip......?

Brooky.

email (option): chasgbrook@hotmail.com

I don't know if this is the 'right' way, but the only way I could do it is to squeeze them in a vise and then install. Be very careful with the threads. Chase them well with pointed tool, and be mindful that cross threading is easy.

If you are talking about the taps with the horizontal plungers, and how to remove the part that holds the cylindrical cork?
Older types are screwed into the on/off button. But most are pressed in. It's simple to tap them out with a blunt nail and gently peen the end again when reinstalled. Ron

email (option): ronpier@talk21.com

This is the way I did it; see the picture. Remove the rivet; drill the plunger with a 3.3mm drill from the cork side. Then ream the plunger on the cork side with a 4.1 or 4.2 mm drill, up to the 3.3mm part.
Then tap M4 thread in the remaining 3.3mm part of the plunger. Now find some 4mm brass rod, and some 1mm sheet brass; you need per tap 2 pieces of 1x1 cm (these are the pieces you usually throw in the dust bin, so look there before you go shopping)
Snip or file the brass to about 8mm round with a small hole in which you solder the brass rod, threaded on the other side with M4. File a small slit for a screwdriver, soak the cork in boiling water, put them on the 4mm rod, shove into the body, and adjust with a screwdriver the cork to a petrol-proof barrel shape. No more leaking taps
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email (option): viaconsu [at] planet\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'dot\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'nl

Wow Hans! That's a lovely piece of engineering there. Fortunately, the taps I've got, although being 'knock off' Ewarts copies, are actually threaded already, so the job will be a cinch. It was Rons post that led me to check and sure enough, I could just see a couple of threads inside the knurled cap.

Thanks everybody for your help. This forum is absolutely wonderful!

Brooky.

email (option): chasgbrook@hotmail.com

Here's a good tip posted on another BSA site. The oldest post is at the bottom:





Nothing that fancy. Rough cut it down to an over large size then put a nail thru it, stick it in the Dremel chuck on the slow speed and use various grits of sand paper to take it down to size and make it smooth...whilst consuming the special lubricant.





----- Original Message -----

From: artisaneng@juno.com [bsa]

To: bsa@yahoogroups.com

Sent: Friday, June 13, 2014 8:06 PM

Subject: Re: BSA EWERTS CORKS





Ta, Gary... But I meant how do you cut them to size?? Drill them first them pare them with a knife, or do you use some kind of plug cutter or machine tool?



On Fri, 13 Jun 2014 19:24:44 -0700 "'Gary Edwards' gary21sn@hotmail.com [bsa]" writes:



I use the petcock for sizing. I make them a snug fit.



----- Original Message -----

From: < a href="mailto:artisaneng@juno.com%20[bsa]" title="mailto:artisaneng@juno.com%20[bsa]">artisaneng@juno.com [bsa]

To: bsa@yahoogroups.com

Sent: Friday, June 13, 2014 6:44 PM

Subject: Re: BSA EWERTS CORKS





Love it!!! Great tip!



How do you size them??



On Fri, 13 Jun 2014 17:12:03 -0700 "'Gary Edwards' gary21sn@hotmail.com [bsa]" writes:



I use the synthetic wine bottle corks. They make great sealers for the petcocks in place of the course corks. Spilt them down the middle and carefully push them over the pin. Don't have to drive the pin out and back in. And the benefit is drinking the special lubricant so the cork is available.

email (option): jjbandoo@aol.com