AutoMag Power Tip O-Ring Problem

[smudgerebt]

So am replacing all the o-rings on the (unused) Mag and have unscrewed the power tip.

Now the spares kit dosn't seem to have the correct o-ring in it.

Is it an o-ring that needs replacing or not?

If so, what size is it and where can I get one from?

Cheers

 

[smudgerebt]

Sorted.

It dosn't need replacing.

 

[Gee Tee]

The one that often needs replacing is the powertube o-ring, which sits deeper in front tube of the valve body. It's held underneath the powertube tip by a spring or brass spacer, and seals the bolt in it's cocked position. If that seal fails you get a leak from the dump chamber, past bolt into breech. It's the same size o-ring seal that fits on the powertube tip.

 

[smudgerebt]

I was looking at replacing the Power Tube Tip o-ring, but it's that one that dosn't need replacing.

All other o-rings have been replaced on both mags now.