Hey guys, I want to do a leakdown test to determine where the compression is
going on cyl #3
on my 1.9L WBX.   I already have the tool that screws into the spark plug
hole that you attatch to an air line.
Do I look for air coming out of the exhaust for bad exhaust valve?
Air coming into the crankcase indicates bad rings/valve guides?
leaking intake valve would show air coming out of the air distributor?

How do the pros do this?

Thanks for any tips.

Malibu Tony  85' Westy 1.9L  5 degrees BTDC.....compression:  #1 100lbs, #2
135lbs, #3 60 lbs, #4 150 lbs
                   still hums at 70 on the flats, it's the hills that make
it feel like a diesel.....