Bought HF $20 testor with 4 different sized screw in leads.
None seem to work.
Anyone have these?
Am I just not patient enough to screw it in?
Full Version: Harbour Freight Compresson Testor
I have one and it worked fine...it does have to screw in a ways for it to work if I remember correctly
Me too. Harbor freight, and it works fine. Is it possible your heads have had work and the plug holes have been tapped for a different size thread?
Compare the threads on the adpators to the threads on the spark plug you pulled out. That's an easy way to match them.
--DD
--DD
QUOTE(Dave_Darling @ Sep 8 2012, 10:16 PM) 
Compare the threads on the adpators to the threads on the spark plug you pulled out. That's an easy way to match them.
--DD
DOH!
This is a "lo-fi" version of our main content. To view the full version with more information, formatting and images, please click here.