SMK Breakbarrel

[The Duncan 802]

Hi folks,

 

I took apart the SMK air rifle last night as I'd testfired it and got a lot of smoke, which did not dissipate even after 20 shots or so.

Investigating the internals seemed the best idea so I stripped it to its component parts.

 

It became clear that the dufus who'd given me the rifle had put oil down the transfer port, lots of it. I cleaned up the cylinder as best I could, cleaned the spring, spring guide and had a go at cleaning up the piston, but it seems like the piston crown is made of leather or compressed card as it is definitely porous and has soaked up a lot of oil.

 

I put back together with just enough moly grease in the right places and testfired it again. Still smoking, but definitely smoother for the strip clean and re-lube.

So, question is, does anyone know of a better piston seal I can use? Is there a 'tune up' kit available? As, although the rifle is clearly a very basic one, it isn't unpleasant and seems robustly made.

 

Nobody came forward wanting it as a freeby when it was offered, so I'm considering keeping it for my youngest lad - cheap plinker to help him learn to handle recoil.

Not really sure what model it is - the cheapest I think. It's got SMK and Westlake etched on the receiver and has a brown painted stock (nice!)

It's also got crappy swivels on the side of the stock.

 

Any help greatly appreciated

 

 

Cheers,

 

Duncan

[andyfr1968 772]

I don't know about a different piston washer mate, but one trick I know to help kill dieseling with leather washers is to give it a good dose of pure silicon oil. It won't diesel under airgun pressures and will help kill the effects of whatever other mineral oil the previous muppet's stuck in there.

[Phantom 631]

Sounds like the SMK/Westlake B2, I gave one away a year or so back.

 

http://sportsmk.co.uk/item/27/

 

Tony

[The Duncan 802]

that's the one tony, thanks. Apart from mine has a painted brown stock - might strip it to see what the wood underneath looks like. I can always repaint it if it's nasty

I like the way the ad says 'extremely powerful', but fails to quote either fps or fpe.