Hunter 376 / 3JH2E OEM Fuel Line Size

[duck21]

Hi!

I'm looking to buy an inline fuel shut off valve for filter changes. I'm curious if anyone knows top-of-head the manufacturer fuel line size for the 1996 Hunter 376 / Yanmar 3JH2E build. I'm assuming it's either 1/4" or 5/16" but I don't see any markings on the fuel lines themselves and am not finding anything in the manuals/documentation that I have on hand (and, of course, I'm not at the boat to disassemble anything and measure). There are lots of forum posts discussing sizing choices when installing new lines, but I'm not seeing any posts about the OEM size.

Thanks!
Doug

 

[JamesG161]

ok here is what I found.

and this too.

Jim...

PS: Check the return line for best sizing

 

[JoeWhite]

There should be a shut off valve at the fuel tank.

 

[duck21]

Indeed, I found these in the manual as well. Unfortunately no reference to the feed/return line sizing.

I may just order both sizes then return the one that doesn't fit.

Doug

ok here is what I found.

View attachment 225409

and this too.

View attachment 225410


Jim...

PS: Check the return line for best sizing

 

[duck21]

You are correct, and that is what I am currently using when filters need changing. However, with the fuel tank under the aft locker it means I need to empty a bunch of gear to access the shut off. It's not world ending, but $15 for an inline valve just before the filter feels like an easy way somewhat simplify an annoying task.

Doug

There should be a shut off valve at the fuel tank.

 

[Ralph Johnstone]

It's not world ending, but $15 for an inline valve just before the filter feels like an easy way somewhat simplify an annoying task.

Nothing could be nicer :