After drilling out the old pin valve I have cut some stainless 1/16 solid rod for soldering into the pin body. This will allow a higher flow rate by increasing the size of the orifice.
After cutting down all that is left is some hand filing to get length close to the original, a new seal is also installed.
The new thinner pin installed into the modified valve with the larger orifice.
Hopefully soon I will have the injector plates for the forward closures. I may have to adjust the length of the pin after those have been received to ensure full flow rate.
Patrick Carroll 