Skid
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the Daily hi thread
Webley Vulcan piston seal
- Thread starter Skid
- Start date
jesim1
Member Extraordinaire
PTFE seals were the dogs in their day - which was about 40 years ago 
- fit the new version 
- fit the new version 
Winceby
Proactive member
This is one of my long term projects, it must make a big diference and defo the way to go.
I have obtained a piston from a late Vulcan of fleabay which accepts the parachute seal with no mods required.
I have obtained a piston from a late Vulcan of fleabay which accepts the parachute seal with no mods required.
Skid
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So, do the early Vulcans need a piston mod to fit the parachute seal?
Has anyone one here fitted a parachute type seal as a replacement for the original ptfe seal in a mk1 Vulcan? If so, what’s the verdict please, I’m thinking about trying one if it’s going to be worthwhile. Thanks in advance
What diameter are they out of interest as I wonder if a Britseals one would fit, we do them in 25mm (TX) and 28mm.
Winceby
Proactive member
If you use the original piston then you would have to carry out a mod similar to welsh willy's Airsporter modified head.
Alternative you could use a later Vulcan piston which uses the same parachute seal as the Stingray/Longbow, no mod needed.
Winceby
Proactive member
I believe the Webley seals are 27.40mm.
Cinimod
Member Extraordinaire
I thought the pistons were the same no matter which Mk 
, but definitely fit a parachute seal…….dom
, but definitely fit a parachute seal…….dom
The ptfe piston seal from my Mk1 measures a tad over 27mm i.e. 27.12 - 27.26mm, but may have been a tad bigger when new . I asked Mickey if you made one for the Vulcan but sadly not, so I bought one from Chambers. However if you think one of your others will fit I'll gladly buy one. The seals I bought for my 80's are the mutts nuts.
I bought one from Chambers that fitted without any modification even though its supposedly for Mk3's.
Just a quick edit, I see from the photo that it may be an Aussie seal. I would personally steer clear, they are very tight, the ones I bought for the Vulcan and HW80's sap power and although you can size them it is a delicate process and you can easily over do it so they leak.
That's ruled ours out then.
nope