Calling all Volvo Penta experts

[matt_lake]

Does anyone know what the thread pattern is on the 3/8" and 1/4" drain plugs (taps) fitted to the AQ151A? Not sure if they're NPT or BSP and can't find any reference to them in the manual.

 

[oldsaltoz]

Visit any fastener supplier, they have the equipment, should take them a couple of minutes.

 

[Bilgediver]

Does anyone know what the thread pattern is on the 3/8" and 1/4" drain plugs (taps) fitted to the AQ151A? Not sure if they're NPT or BSP and can't find any reference to them in the manual.

Take one to Halfords as they have a complete selection...Well they do in Edinburgh!!

They could be a metric thread

 

[volvopaul]

From memory 1/4 bsp.

 

[VicS]

You can identify them from the thread pitch ( just! ) BSP is 19tpi and NPT is 18tpi, for both 1/4" and 3/8 "