View Single Post
Old 04-06-2020, 11:00 AM   #25
katy
Senior Member
 
katy's Avatar
 
Join Date: Jun 2015
Location: Red Deer, Alberta
Posts: 5,047
Default Re: Comments on these leak-down test results

Quote:
when someone says "sticky valve" does that mean the valve is stuck closed, or open, or both?
Usually means that the valve is slow in seating because the stem and/or guide are carboned up or rusty, also may be caused by a weak or broken spring. The valve may close fully during cranking but when running it doesn't close fast enough.
__________________
If you don't hear a rumor by 10 AM, start one!.
Got my education out behind the barn!
katy is offline   Reply With Quote