Engine Block Coolant Drain Cock Location

[tmontague]

What you were looking at in the diagram wasnt the intake manifold, it was the exhaust manifold.

It's on the back of the block under the exhaust manifold.

FWIW you only end up removing an extra 100mls or so when you use the block drain valve compared 5o the radiator pet cock

[SirDigby]

Originally Posted by tmontague

It's on the back of the block under the exhaust manifold.

FWIW you only end up removing an extra 100mls or so when you use the block drain valve compared 5o the radiator pet cock

this is true. it's not really a "drain." more of a "bleeder" for when you are filling the system. air can become trapped it that area and it's good practice to crack it open when filling... (of course close it when coolant flows out)

also, what does "FWIW" mean?