Its the 1/8" diameter hole below the thermostat housing....I put a new head on the MO last weekend and the hole appears to be damp and it looks like antifreeze is seeping out of the hole.

Its a very small amount and I only have about 15 minutes of run time on it. I looked in my service manual and didn't see any info on where the passage goes.

Thanks guys
Jeff

 

if its a clear or green color its antifreeze if its a brownish color its where you drain the oil

 

it's a weep hole for water that goes down by the spark plug...i noticed that when i pressure washed it and water came back at me from the hole when i sprayed the spark plug

 

rolsmojave

Thanks for the info...I feel like such a pin head since I have 2 other heads sitting here and could have just followed the hole to see where it went.

The sight of antifreeze scared me alittle but now that I think of it, I had to take out a thermostat bolt to put the clutch cable 'tin holder' back on and I had already filled the radiator so some did seep out and what I didn't get wiped off must have just gathered around that weep hole.

Thanks for putting my mind at ease(just can't believe I didn't look at my other heads and had to post such a dumb question..lol)

Jeff