Fitting a Brit Seal ๐Ÿ˜ตโ€๐Ÿ’ซ

J4M3S

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Jesus, how does anyone fit one of these? ๐Ÿ˜‚ It's that tight that all I'm doing is damaging the inside of the seal when pressing it in. Am I missing something? Other than talent obvs. Pro Sport for reference
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Seal face down as you have it, piston off-square to it and push down and twist.
Sort of push the bottom edge of the piston dovetail in and then twist, push and straighten the piston in one downward move.
Unless you need to heat it, which for TXs I've not had to yet, but don't use boiling water as soon as it comes off the boil ๐Ÿ‘๐Ÿฝ
 
Seal face down as you have it, piston off-square to it and push down and twist.
Sort of push the bottom edge of the piston dovetail in and then twist, push and straighten the piston in one downward move.
Unless you need to heat it, which for TXs I've not had to yet, but don't use boiling water as soon as it comes off the boil ๐Ÿ‘๐Ÿฝ
Late to the party, but exactly this ๐Ÿ˜œ
 
Check the power after it's had chance to bed in, I find it goes up.

Got these in my 95 & 97, they'll be going in anything else that can take one as & when they get a rebuild too ! If only they were available for Theobens & HW45s.
 
Check the power after it's had chance to bed in, I find it goes up.

Got these in my 95 & 97, they'll be going in anything else that can take one as & when they get a rebuild too ! If only they were available for Theobens & HW45s.
I checked at the time and it bumped to 12.3. took two coils off the TBT spring in the gun and it dropped to 7.5 ๐Ÿ™„. Just ordered a kit from WW with one coil less than standard - hopefully this cures it
 
I checked at the time and it bumped to 12.3. took two coils off the TBT spring in the gun and it dropped to 7.5 ๐Ÿ™„. Just ordered a kit from WW with one coil less than standard - hopefully this cures it
That's a big drop for two coils :oops:

One medium preload washer is around 1 ft/lb in my 95, TBT kit fitted.



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Jesus, how does anyone fit one of these? ๐Ÿ˜‚ It's that tight that all I'm doing is damaging the inside of the seal when pressing it in. Am I missing something? Other than talent obvs. Pro Sport for referenceView attachment 653922View attachment 653917

I had the exact same issue yesterday with the 28mm Britseal

Boiling water and all the usual tactics didn't work......in the end, took a tiny bit off of the inside with sandpaper and then with a piston fresh out of the freezer and a seal straight off the boil and a lot of twisting, pushing, leaning and swearing it finally went 'snap' and clicked into place!

I've actually lost 30 fps vs previous seal, but a finger over the transfer port creates a strong vacuum and I'm sure after a few dozen shots power will creep back up, don't mind if it doesn't to be honest as the shot cycle is noticeably improved with it in place ๐Ÿ‘
 
That's a big drop for two coils :oops:

One medium preload washer is around 1 ft/lb in my 95, TBT kit fitted.



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Yeah that's what I thought, added the two power washers and got it to 8.5. it shoots lovely, but 8.5 is just a bit too low for me. If it had ended up at 10 I would have been happy and just left it
 
I had the exact same issue yesterday with the 28mm Britseal

Boiling water and all the usual tactics didn't work......in the end, took a tiny bit off of the inside with sandpaper and then with a piston fresh out of the freezer and a seal straight off the boil and a lot of twisting, pushing, leaning and swearing it finally went 'snap' and clicked into place!

I've actually lost 30 fps vs previous seal, but a finger over the transfer port creates a strong vacuum and I'm sure after a few dozen shots power will creep back up, don't mind if it doesn't to be honest as the shot cycle is noticeably improved with it in place ๐Ÿ‘
Will probably last a lifetime, but definitely not the easiest to fit ๐Ÿคฃ
 
28mm Britseal going very nicely in my Remington Express
Shot cycle is good as is consistency
 
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