Bsa mercury mk2

[Leepelletb]

Morning all. Quick question for the experts. Apon stripping and cleaning the mercury (low power issues) I noticed the piston head on was a plastic/nylon head with a leather buffer. New one I ordered is a alloy head with a plastic/nylon buffer. Is this just how they are made now? Or did I order wrong set? Thanks all. Kind regards Lee.

[junglie]

Morning all. Quick question for the experts. Apon stripping and cleaning the mercury (low power issues) I noticed the piston head on was a plastic/nylon head with a leather buffer. New one I ordered is a alloy head with a plastic/nylon buffer. Is this just how they are made now? Or did I order wrong set? Thanks all. Kind regards Lee.

the nylon ones swelled through incorrect lubrication so were discontinued, i used the right size tap washer as buffer as the buffer washers break up with age too.

[Leepelletb]

the nylon ones swelled through incorrect lubrication so were discontinued, i used the right size tap washer as buffer as the buffer washers break up with age too.

Thanks handy to know.

[T 20]

Morning all. Quick question for the experts. Apon stripping and cleaning the mercury (low power issues) I noticed the piston head on was a plastic/nylon head with a leather buffer. New one I ordered is a alloy head with a plastic/nylon buffer. Is this just how they are made now? Or did I order wrong set? Thanks all. Kind regards Lee.

The Nylon head was discontinued a long time ago, so the alloy head is the correct one for sub 12 ftlbs, there's also a steel head available for FAC use.
Even with the alloy head you'll probably still find the Meteor sized O ring will be a better fit as it offers less crush and friction.



All the best Mick

[Phil Russell]

Even with the alloy head you'll probably still find the Meteor sized O ring will be a better fit as it offers less crush and friction.



All the best Mick

Meteor O ring = BS 210, Mercury / Airsporter = BS212

Cheers, Phil

[Leepelletb]

Thanks all

[look no hands]

The Nylon head was discontinued a long time ago, so the alloy head is the correct one for sub 12 ftlbs, there's also a steel head available for FAC use.
Even with the alloy head you'll probably still find the Meteor sized O ring will be a better fit as it offers less crush and friction.



All the best Mick

Totally correct, Meteor O ring is far better.

[Leepelletb]

Ordered the service kit yesterday ordered the meteor o ring this afternoon. 👍