M-18 coolant flush question

[light24bulbs]

Where the @*$& is the coolant drain plug?

Apparently according to the manual it's "above the oil filter". I just can't figure this out without a visual aid.

 

[light24bulbs]

Oh shoot, I think mine has been replaced with a bolt

 

[light24bulbs]

If anybody else stumbles upon this, I ended up just taking off hoses in low points and draining the coolant that way, I seemed to get almost all of it. I had to anyway.

Messy but physically possible.

 

[Jaybee]

My M18 had a pet cock just below the injection pump

 

[Second Star]

You appear to have an Oberdorfer raw water pump; my M18 has a discontinued Sherwood M5. Do you know the model of pump you have?

 

[bigd14]

Should be easy enough, but messy, to install a short length of pipe with a quarter turn valve where that plug is to make future coolant changes simple. I added a two foot long piece of hose after the petcock to make draining into a container easier.