Oil pressure gauge installation

[Monty]

I am attempting to install an oil pressure combination oil alarm on my 1985 Catalina 30 with a M-25 Universal engine. I was using the guide in the Tech Talk book, but the threads on the Kubota engine are metric and the guide calls to install a 1/4" npt pipe nipple and tee for this conversion. Are there metric brass fittings made for this application and how will a Teleflex sending unit, that I assume is not metric fit into this equation ?

 

[Monty]

Call off the dogs the hunt's over

I have figured this out.Use a 10mm - 1 x 1/8npt brass reducing bushing ( ISSPRO 1-877-447-7776 or Stewart Warner #366ST-F Kit from NAPA ) from the engine connected to a 1/8 " npt hudraulic hose piped into a, believe it or not, a 10mm x 10mm x 1/8" tee ( Carquest Auto ). Use another metric reducer to connect the Teleflex oil pressure sender( 1/8 npt) for the gauge to the tee, use the existing Kubota metric oil alarm switch in the other 10mm port. Mount this on a piece of alumnium angle and mount to a bulkhead or some other safe place.