hi i am a new site user please can anyone help i have just fitted a new hobby torch to my gas/no gas clarke 140en welder and it has vapourised the spring melted part of the torch and melted the cables in the torch sheath back to the welder this torch is the correct one i bought from weldequip. i think the problem is that the spring is to long and touched the brass gas valve which has the large welding current attached to it thus sending to much down the small wires please can anyone help thanks . i have also noticed there is a big black scorch mark on the gas valve where the switch spring made contact please help Thanks