Post by somersetsimplex on Nov 9, 2019 12:25:09 GMT
I've finished replacing the pipework on my Simplex, and am testing it on compressed air before steaming and getting my annual boiler check. I've replaced the clack balls with Viton which has stopped these bypassing, next up are the valve and cylinder stuffing glands. I've discovered the reason for the leaks from these - no stuffing! I've got some graphite string for this, but have others converted to silicon O rings or similar, and if so what sizes and how have they modified their stuffing boxes?
I am starting with new cylinders for mine but am going for O rings suitable for 1/4 and 3/16 inside diameter. Currently pondering going for a combination of cast iron ring and 2 slots of graphite either side to help oil distribution. 2 cast iron rings seemed to be a bit strong. I am reducing down to 1 3/8 dia for mine to give the boiler a chance to supply.
David and Lily.
Builder of far too many projects, but I love them all. The more Locomotives you have building, the more solutions to other Projects Problems get Solved. Reworking Simplex into a Fowler Complex. Making a Jinty more to scale. And going up a size in the shape of a Jessie.