Forum Discussion
Old-Biscuit
Mar 28, 2021Explorer III
Inside the ACME Nut
1) O-Ring that seals the connection between ACME Nut and Propane OPD Valve connection
2) Thermal Bushing where hose enters ACME Nut (melts if temps exceed 240*F which then allows the OPD Springloaded vlave to close stopping all propane flow)
*2 types of the thermal bushing
OLD one that was redesigned because it had high failure rate
NEW one that has better 'collar' around the bushing
This is the OLD one
This is the NEW one
In either case if leak is AT the ACME Nut to OPD.....check for missing O-Ring inside the ACME Nut
If leak s at the 'bushing'---new pigtails
1) O-Ring that seals the connection between ACME Nut and Propane OPD Valve connection
2) Thermal Bushing where hose enters ACME Nut (melts if temps exceed 240*F which then allows the OPD Springloaded vlave to close stopping all propane flow)
*2 types of the thermal bushing
OLD one that was redesigned because it had high failure rate
NEW one that has better 'collar' around the bushing
This is the OLD one
This is the NEW one
In either case if leak is AT the ACME Nut to OPD.....check for missing O-Ring inside the ACME Nut
If leak s at the 'bushing'---new pigtails
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