MAMOD BOILER REPAIR/ COLLAR/ INSERT
FOR
SAFETY VALVE AND WHISTLE
TE1 & TE1A TRACTION ENGINE /
SR1A STEAM ROLLER /
SW1 STEAM WAGON
and others with a 1/4in. BSF thread.
Collar O.D. = 9.50mm
Inner O.D. = 7.50mm (this goes into the boiler hole).
Mamod SE3 engines have a safety valve that is 3/8in. BSW thread,
so not this one!
Won't you need two in case the first one goes pear shaped?