Did a compression check today, and noticed plug 4 had more carbon than others. Also plug 2 seemed to have a little moisture on it. I switched the plugs around. Buttoned her back up, and ran it on the muffs for a few minutes. Checked the plugs again, and plug 4 was still more carboned than others, but no moisture on #2.
Does cylinder #4 run richer normally? Is there a tell tale there? Compression was OK. All were ~155 to 165.
Does cylinder #4 run richer normally? Is there a tell tale there? Compression was OK. All were ~155 to 165.
Last edited: