bsa ultra se power problems

[raptar 48]

Hi all,

Went to have a few practice shot before heading out this evening, when I notice a big power drop, so I put it over the chronograph and it was down to a constant 4.5lbs from 11.2lbs

I thought it might be the hammer spring but it looks fine any ideas?

 

Thx all.

[Deker 3,478]

Has it got any air left in it?

[raptar 48]

yes, plenty + have never overfilled either.

it cocks fine, it is holding all its air, hammer spring look good.

but the power has just dropped right off.

[Deker 3,478]

Just now, raptar said:

yes, plenty + have never overfilled either.

it cocks fine, it is holding all its air, hammer spring look good.

but the power has just dropped right off.

Over to others for help then, mine went a while ago now after going back to BSA several times for leaking seals.

[vizlauk 1,568]

If it's showing plenty of air on the gauge,  I would still give it a fill to double check, as it may have a faulty gauge, other than that I would take a guess that the firing valve is faulty,  has it been filled from a dive cylinder or a pump ? Also is the barrel tight ,  is there a oring on the pellet probe ?

[raptar 48]

ok thx I will have a look later.

[raptar 48]

On 25/09/2018 at 07:47, vizlauk said:

If it's showing plenty of air on the gauge,  I would still give it a fill to double check, as it may have a faulty gauge, other than that I would take a guess that the firing valve is faulty,  has it been filled from a dive cylinder or a pump ? Also is the barrel tight ,  is there a oring on the pellet probe ?

ok, I have just replaced the O ring on the pellet probe and it still the same any other ideas?

[Str 793]

Is it loosing air when stood over time?.

[villaman 9,983]

Is it new , is it second hand , if so has it been tampered with . If it has been tampered with it might be the adjuster slackened off ,which will be a easy fix .  or

Send it off to Carl at airtech for tune and reg it will come back totally different . Mine has been trouble free after carl tune 

 

[vizlauk 1,568]

58 minutes ago, raptar said:

ok, I have just replaced the O ring on the pellet probe and it still the same any other ideas?

Have you checked the other things I’ve mentioned?

[raptar 48]

yes, it is 2nd hand and its still holding all its air, lost power in 1 mag and never recovered.

[villaman 9,983]

Take the gun out of stock and is there a round ally disc on the back end of the trigger like this

  

 https://www.youtube.com/watch?v=yU0Y-F03z0A&t=66s

[raptar 48]

23 hours ago, villaman said:

Take the gun out of stock and is there a round ally disc on the back end of the trigger like this

  

 https://www.youtube.com/watch?v=yU0Y-F03z0A&t=66s

 thx dude, but that was the 1st  thing that I did.

Edited September 28, 2018 by raptar

[raptar 48]

I am well and truly stumped on this 1

[Deker 3,478]

1 hour ago, raptar said:

I am well and truly stumped on this 1

Frankly so am I.  Mine used to leak air from the reservoir seals, and despite BSA having 3 goes at fixing it they never could properly.

Apparently this is still full and not leaking.