[ermax]

Originally Posted by humfrz

Yep, valve clearance.



Let's see, you have one hand trying to hold the compression gauge in the spark plug hole tight - then with the other hand you are trying to turn over a cold, dry engine.



Now, HOW could you get a false reading?? -



Back in the day, it took me both hands to hold a compression gauge in a spark plug hole (on a 8:1 compression ratio engine) -



(hesh up, @Tcoat , I was NOT a 98 pound weakling - I just weighed 98 pounds)





humfrz

I have threaded fittings on my compression and leak down gauges so that helps.