Coolant drain plug on center iron housing of block
 

went through a gallon of coolant before i noticed it was draining out through the coolant drain plug from the block. anyone know where i can buy one or the thread/pitch?

If you have an m8 bolt(1.25 pitch) and 10 in 1.25 and 1.5 to test, that's pretty much all the possibilities! Bolt is about 12~15mm long, with alloy crush washer...a dowty seal or similar would do as well.

Checked one, 10x1.5, 9mm long, 14 hex.

^Thanks for checking and posting that up :icon_tup:

any idea what it would be for the fc or is it the same?

Can't imagine it would be different. Almost sure to be the same.

Dunno, no engine mounting intermediate plates here to check. I'd suspect diameter and pitch wouldn't have changed....doubt length is hugely critical, unless the fastener bottoms and you keep turning...best to ask in the 2nd gen section probably.

Fc bolt has a proprietary head to make it easier to access due to the motor mount being there.