Hopefully he'll see this and give me some help its beyond my skills to repair
Hi Tom
What a marker. Where do I start?
Marker came to me 'puffing'. No leak, just puffing. Typical behavior of a faulty diaphragm.
First up... your HPR core.. the velocity adjuster doesn't screw in/out smoothly - feels like it was poorly machined or cross threaded at some point. So I swapped the entire HPR core and velocity adjuster with a spare that was in your spares kit.
I cleaned and re-lubed the HPR.
Then... the rear grip frame screw - looks like it was substituted for different one. I replaced it with the correct one.
I then stripped the marker down - the manifold was a bugger to get out - very, very tightly milled. Replaced the diaphragm (you need to order some more off
foot ) and rebuilt the marker (lubing the air transfer orings etc). I also cleaned and re-lubed the bolt.
The frame isn't perfectly aligned - something a lot of Demons and Creeds had - I think it is down to the manifold being so darn tight to the body and even though I gave it a hefty whack to get it in, it still isn't as close as I would like it :/
Anyway, aired it up and it is now shooting. I can't chrono it, but it 'feels' about right, but the set screw has been adjusted so you cannot over-pressurise it.
Here's the video of it before and after:
And some photos:
