PeachParts Mercedes-Benz Forum - Block Drain thread pitch/size for Petcock?

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warmblood58

09-28-2010 03:16 AM

Block Drain thread pitch/size for Petcock?

Hey all - I want to pull my block drain and while blocking coolant with finger, screw in a petcock so I can control coolant flow and then replace with block drain bolt when done -anyone ever do this and know what thread pitch/size is? Thanks!

warmblood58

09-28-2010 11:03 AM

anyone?

whunter

09-28-2010 12:23 PM

Answer

The OM617 drain plug has 14x1.5mm threads

603 block drain valve -- 617 drain plug swap?
http://www.peachparts.com/shopforum/diesel-discussion/226579-603-block-drain-valve-617-drain-plug-swap.html#post1899005

Have a great day.

sixto

09-28-2010 06:26 PM

Quote:

Originally Posted by warmblood58 (Post 2553724)

What engine? The 603 block drain flow varies by how much you loosen it. It even has a nipple that's about the side of a garden hose ID. And some people still prefer to adjust valves <duck>.

Sixto
87 300D

warmblood58

09-30-2010 02:29 AM

Quote:

Originally Posted by sixto (Post 2554216)

Ooops sorry, OM617 -thanks Hunter!

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