R10 pump up

[Andy parcell]

Hello all,,
Ive probably been a bit daft so go steady on me,,,
My r10 mk2 had a slight leak on it,, very slow,, it would lose most of it's pressure over a couple of weeks,,
Well a work mate who's ex amry said he could fix it,, he'd stick a new seal kit in it,,,
So I bought the seal kit and a huma reg,
Got the gun back off him and now it won't pump up on the syrup, it jist seems to pass air when, I pump,,
Could this be a case of the gun need a big rush of air from a bottle or compressor?
Or has it been bodged,, has anyone else had a totally empty r20 and been able to recharge from a foot pump?
Cheers all,,
And apologies for being stupid,, it should have gone to a gun smiths.

[ashf9999]

Hello all,,
Ive probably been a bit daft so go steady on me,,,
My r10 mk2 had a slight leak on it,, very slow,, it would lose most of it's pressure over a couple of weeks,,
Well a work mate who's ex amry said he could fix it,, he'd stick a new seal kit in it,,,
So I bought the seal kit and a huma reg,
Got the gun back off him and now it won't pump up on the syrup, it jist seems to pass air when, I pump,,
Could this be a case of the gun need a big rush of air from a bottle or compressor?
Or has it been bodged,, has anyone else had a totally empty r20 and been able to recharge from a foot pump?
Cheers all,,
And apologies for being stupid,, it should have gone to a gun smiths.

You’re not stupid at all. My R10 Mk2 (also Huma’d) would do the same, ie develop an annoying but extremely slow leak. First port of call would normally be the bottle seal o-ring, but certainly not always.

Have you tried cocking the gun prior to charging with the stirrup pump? If you have no success (and assuming the gun is now correctly sealed), get an adapter from Best Fittings so you can charge the bottle directly. https://www.bestfittings.co.uk/shop/...-fill-adaptor/

If you still get a leak, it may be a different cause now and possibly because the pin that opens the buddy bottle valve in the gun is set too far forward (potentially easy to do if the gun has been taken apart to service), opening the valve and, in extreme cases, preventing the bottle seating quite properly and thus causing the bottle to slowly empty at this point.

[Andy parcell]

You’re not stupid at all. My R10 Mk2 (also Huma’d) would do the same, ie develop an annoying but extremely slow leak. First port of call would normally be the bottle seal o-ring, but certainly not always.

Have you tried cocking the gun prior to charging with the stirrup pump? If you have no success (and assuming the gun is now correctly sealed), get an adapter from Best Fittings so you can charge the bottle directly. https://www.bestfittings.co.uk/shop/...-fill-adaptor/

If you still get a leak, it may be a different cause now and possibly because the pin that opens the buddy bottle valve in the gun is set too far forward (potentially easy to do if the gun has been taken apart to service), opening the valve and, in extreme cases, preventing the bottle seating quite properly and thus causing the bottle to slowly empty at this point.

Ahh, no I haven't tried pumping it up cocked, I shall give that ago, that's great to know,,
Cheers for that ash,, very helpful pal👍

[Neil54]

Sometimes a little back pressure is needed to close the filling valve.
Plan b is cock rifle, put your finger over the end of the barrel and pump holding the pressure as best you can.

Not easy with only two hands and a shrouded barrel.

[Andy parcell]

I'll try that this afty, thanks for the input I'll post my results,, 👍

[Andy parcell]

Just had ago pumping the gun while Cocked,, and i tried with my finger over the end of the barrel,,
It gets to about 100 bar then dumps all it's air,,??

I guess the next step is try get it filled on a bottle and if that doesn't work it'll have to go to a gun smith,,

Any recommendations in the Yorkshire area?
I live in Harrogate but can travel abit,,

[junglie]

Just had ago pumping the gun while Cocked,, and i tried with my finger over the end of the barrel,,
It gets to about 100 bar then dumps all it's air,,??

I guess the next step is try get it filled on a bottle and if that doesn't work it'll have to go to a gun smith,,

Any recommendations in the Yorkshire area?
I live in Harrogate but can travel abit,,

I doubt it'll cure it filling from a bottle if it got to 100bar before dumping it's air but let us know how you get on. don't know anyone to work on it near you but there's a guy up here is very good, he did a splendid job on my sons R10, pm me for his contact details if you have no joy locally , you can post him just the action (empty of air of course)

[Andy parcell]

I doubt it'll cure it filling from a bottle if it got to 100bar before dumping it's air but let us know how you get on. don't know anyone to work on it near you but there's a guy up here is very good, he did a splendid job on my sons R10, pm me for his contact details if you have no joy locally , you can post him just the action (empty of air of course)

Will do buddy, and thanks for that,,, just outa interest what areas are you talking about?

[Shed tuner]

Yeah, if it gets to 100 BAR, then it's not a problem in terms of the pump not generating enough pressure vs a bottle.. you have a seperate issue.

If it's start dumping at around 100 BAR, I'm thinking an o-ring or other seal is failing at this pressure. It's less likely to be the valuve, itself, as valve leaks tend to ne relatively small/slow (well, unless they have physically broken)..

[ashf9999]

Yep it definitely sounds like a different leak to previous now; quite likely that an internal o-ring has been nicked slightly or not seated quite properly during the last service (or maybe dirt). Unless you’re willing to strip it yourself, there’s probably nothing you can do now short of send it for a rebuild.

[Andy parcell]

Yep it definitely sounds like a different leak to previous now; quite likely that an internal o-ring has been nicked slightly or not seated quite properly during the last service (or maybe dirt). Unless you’re willing to strip it yourself, there’s probably nothing you can do now short of send it for a rebuild.

I mean,, it leaks as soon as I start pumping,, but can't pump fast enough to get past 100 bar,, haha,,, ive tried a new full probe aswell,, so it's gonna be a full strip down I reckon,,
Should I try rat works?

[greenwayjames]

I mean,, it leaks as soon as I start pumping,, but can't pump fast enough to get past 100 bar,, haha,,, ive tried a new full probe aswell,, so it's gonna be a full strip down I reckon,,
Should I try rat works?

Check the seal of the probe in the end of the pump hose. If the probe is not correctly fitted and fully tight in the hose that could be the problem. Pressure needs to build up in the hose before it can open the rifle inlet valve.

[Andy parcell]

Check the seal of the probe in the end of the pump hose. If the probe is not correctly fitted and fully tight in the hose that could be the problem. Pressure needs to build up in the hose before it can open the rifle inlet valve.

Will do,, thanks for that, I think that's OK as I have an fx and pumped that up the other day with no issues,, i even bought a new bsa full probe to rule the old fill probe out,,
I'll definitely double check everything though, thanks
,,

[Andy parcell]

Just an update if anyone is interested,, i took the gun to the gun shop today to see if it would fill off a bottle,,
The ship owner said it wasn't even taking air,
So I've left it there for a full strip down service,
They said it would be ready for around Wednesday,

Hopefully no expensive supprises.

[ashf9999]

Just an update if anyone is interested,, i took the gun to the gun shop today to see if it would fill off a bottle,,
The ship owner said it wasn't even taking air,
So I've left it there for a full strip down service,
They said it would be ready for around Wednesday,

Hopefully no expensive supprises.

The only possible thing may or may not be is the need for a new regulator. Otherwise they’re fairly straightforward guns to service - especially as someone has had it apart previously, so no need to faff around drilling out anti-tampers etc.