Help locating petcocks

[Mark Maulden]

I need help locating a petcock or drain cock or stop cock..call it what you will. Pipe end is metric at M10 and the other end needs to be a hose barb somewhere around 5/16. Hose barb size not critical. I’ve googled, looked at Amazon, Ebay, Grainger, McMaster Carr and not finding metric...

 

[Harlan]

How's this?

http://www.oildrainvalve.net/ez-oil-drain-valve-ez-124-10mm-1-25/

 

[Charles Erwin]

Is the thing you are draining something that requires the stop cock to be male tapered pipe so as to screw into the thing to be drained? If so it might be 1/8 BSPT rather than M10 so a plain vanilla adapter would work to go from BSPT to any NPT stop cock. Any hydraulic shop should have the adapter.

Charles

 

[Mark Maulden]

It is a drain so to speak on my new sail drive from Beta. Technodrive Seaprop. From Italy. To change the ATF while floating, I have to remove an M10 plug inside the boat and replace it with a hose barb with ATF pouring out all over the place. Then, tape over the vent and then pressurize through the dipstick hole at less than 5 psi. So, I would like to replace the plug with a petcock that has a hose barb to keep things clean. The process works well. I pressurize into the dipstick hole with an air nozzle that has a rubber tip and pressurized from a bicycle tire pump and a pressure gauge. I put a petcock in from a cylinder from my old Volvo MD 17C and I can put a one gallon jug up to it. But, it's at a shallow angle and it would overflow. Should work better with a hose between a jug and a proper petcock...That's my story and I'm sticking to it!

 

[Mark Maulden]

Oh, and Harlan nailed it. Should work well! Thank you!!

 

[LeslieTroyer]

And cheaper than boat parts I’ve been buying!!!

 

[jssailem]

The EZ-oil drain valve... looks easy to use. First question, will it get knocked open? not if the spring and latch hold. Are the components marine safe? in conclusive from the website. Perhaps Mark can be a test boat and report back. At the reasonable cost one could buy several as backup and when the spring starts to rust compromising the seal you can pop it out and send it back to the factory for the "lifetime" warranty.
The Good News....

Your EZ Oil Drain Valve is constructed out of corrosion-resistant forged brass, stainless steel, and nickel-plated for added protection from the elements. Brass is the ideal material as it can withstand temperature extremes as well as harsh environmental factors. (I.e. salt, water, oil, chemicals, etc.) Your EZ Oil Drain Valve will outlast your engine.
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[Justin_NSA]

Ever since I saw an article in Practical Sailor I've want to add a drain and pump to my Yanmar oil pan. I need to remove the plug and determine the thread pattern. That fitting might work.
https://www.practical-sailor.com/issues/37_50/features/Making-Engine-Oil-Changes-Easier_11615-1.html

 

[JamesG161]

Yanmar oil pan

My 16hp Yanmar, for the genset, has one built in plus and tilting hose. So I know Yanmar makes one.
I made a mess the first time, since I didn't know it was a "Valve bolt". Just turn the bolt, tilt the stiff hose like pipe, out comes the oil.
Jim...

PS: The hose [stand pipe} returns to a stiff position, higher than the oil level can be in the oil pan.