6lya-stp oil sw thread?

Duetto · Jun 23, 2021

hi all,

i'm trying to connect a mechanical oil pressure gauge to my 6lya-stp. does anyone know the thread size or a complete gauge that will thread in?

thanks

E-Sea Going · Jun 23, 2021

Give Mastry Engine Center in Clearwater a call, they supplied many of the Yanmar engines to Mainship. They have been extremely helpful to me over the years. 727-522-9471

DavidM · Jun 23, 2021

It may be a JIS thread Japanese system), similar if not identical to the British pipe thread system. I discovered this when plumbing the coolant to the water heater. A 3/8 NPT (US system) nipple fit, but just barely. It grabbed about 3 threads which was marginal.

David

Ski in NC · Jun 23, 2021

BSP tapered thread. I bought adapters from a Parker hydraulic shop. They knew what I was looking for.

You could chase it with a 1/8 x 27 NPT tapered tap, but not recommended.

6lya-stp oil sw thread?

Duetto

Senior Member

E-Sea Going

Veteran Member

DavidM

Valued Technical Contributor

Ski in NC

Technical Guru

Similar threads

Latest posts