Intermittent sticking valve

[Mark's 37]

Thanks Pete.

[Ggmac]

If you still need to find the cyl . Remove one plug wire at a time and run , if it's not that cyl it'll drop even more when the bad one acts up . Yes it's time consuming but it'll find it usually . It works best when the bad cyl acts up on a regular occurrence.

[VeryTangled]

Originally Posted by Ggmac

If you still need to find the cyl . Remove one plug wire at a time and run , if it's not that cyl it'll drop even more when the bad one acts up . Yes it's time consuming but it'll find it usually . It works best when the bad cyl acts up on a regular occurrence.

To do the same test, I've taken a long stout screwdriver (with a good insulated handle) and placed it between the top of the plug and the head. This shorts the plug and the cylinder will drop out.

For those smarter than I am. Am I doing anything bad with this test?