Splatmaster Serviceable Pierce-Pin
I have a Splatty that's otherwise in excellent shape, with KidneyThief's metal internals but it has a leak at the pierce-pin.
I noticed this post: http://www.mcarterbrown.com/forums/a...ml#post1143244
I have a few spare pierce-pin assemblies around.
Has anyone drilled and tapped a Splatty valve to accept replaceable pierce pin assemblies, a-la CCI Phantom or DD68 Redux?
Any issues I should be aware of? Two I can think of:
EDIT - we had the best results cutting the pierce pin assembly down to 9mm.
one of my former team mates used to mod phantom internals for splatmaster use. He also would use Spyder springs, when needed
With the help of Canuck, we drilled out the old pierce pin on the Splatmaster valve, tapped the hole for a 1/4-28 thread and threaded a standard CCI pierce-pin assembly into it.
A photo of the Splatmaster valve in the drill press. The original pin appears to be hardened steel pressed into the aluminum valve body.
A diamond bit in a rotary tool followed by a carbide tipped drill bit will help get the old pierce-pin assembly out.
Note: the CCI pierce pin is best cut down as shown in the version used in the DD68 Redux. A full-length CCI pierce-pin assembly would require a lot more drilling and tapping into the Splatmaster valve.
The tap size to use is a 1/4"-28tpi ("quarter-twenty-eight").
You'll need a bottoming tap or you'll have to grind or slice the tip off a regular tap to make the bottom flat.
Thanks Canuck! I owe you a quarter-twenty-eight tap. ;)
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