does anyone know the specifications for the retainer screw on Ewarts petcocks? I need to buy a few.

email (option): cas.vanderwoude@gmail.com

Try

Martin Bratby
THE COACHOUSE WORKS
LIMEPIT LANE
HUNTINGDON
CANNOCK
STAFFS
WS12 4PA
01543 572583 FAX 01543 876202

sorry, I don't have an email address for him

No email for Martyn. Cas I expect they're a small BA size. I'll check tomorrow and also post a link to a BA supplier. Ron

email (option): ronpier@talk21.com

Cas I tried 3 different old Ewarts taps and found that a 5BA screw, screws in but gets a bit tight on the thread. But a 4BA tap easily runs through and makes a perfect thread. Either screw would have to be the right length with a point for the plunger slot.

I've always found this guy to be helpfull and inexpensive https://www.ba-bolts.co.uk/

Ron

email (option): ronpier@talk21.com

I did offer him 5 original wd stock screws, but they were not what he wanted.
still got 'em.

Well I wouldn't mind a couple as spares Ken. From memory, it's only Royal Enfied, Triumph and James ML that have the punger type taps, and it's easy to drop a screw and never see it again. All the rest are the 2 cork slide type taps. Ron

email (option): ronpier@talk21.com

be in the post later.

Bless you!

Ron

email (option): ronpier@talk21.com

BTW I've found a good replacement for the cork seal. A few nitrile o-rings (of the correct size) are a great replacement. I can supply the o-rings and a new sealing washer for a Ewarts tap for $5 plus postage if anyone wants,

email (option): cas.vanderwoude@gmail.com

I was hoping to include a replacement screw as well, but that will have to wait.

I'm also contemplating making anti wet-sump kits which will consist of a check valve and/or a complete oil line with check valve included. LMK if anyone is interested. the valve with oil line and fittings will be around $30. I have black braided 5/16 oil line and nice ends.

email (option): cas.vanderwoude@gmail.com

Long term I don't think Nitrile will hold up to modern fuels.
My nitrile gloves swell & soften if they are wet with fuel for a long time.
This happens when removing silicon from places where it never should have been.

Would butyl be a better material considering all of the scrap solvents that end up in "fuel" which is not petrol, now days.

email (option): bsansw1@tpg.com.au

You would be better off using Viton I would think.

I will have these in nitrile as well as Fluorocarbon rubber(viton). BTW, Viton is a proprietory name rather than a class of rubber.

I'm certainly no rubber expert but I do know there are many grades of both types. What I'm gonna do is let a few o-rings sit in our lovely E10 gasoline for a few days and see what happens.

email (option): cas.vanderwoude@gmail.com

email (option): ronpier@talk21.com

Just my big generous heart Ron :astonished: