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Power Strokes
6.4 Tech
Angry midgets in motor after startup!!!
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[QUOTE="Strokersace, post: 1045855, member: 622"] Did a compression test last night. Numbers were all low but not exactly sure what normal is for a 6.4. Used a harbor freight kit with a modified glow plug and used the starter to spin it over. #'s 1,2,5,7,8 all registered 260psi. #3 showed the lowest at 200psi. #'s 4,6 were around 230 to 240psi. Mind you this motor has not ran more than a few seconds since late February. All cylinders holding pressure tells me no holes in pistons. I did start it and let it run for 30 seconds or so to check for blow by. The vapor coming from the oil fill opening isn't chugging but it putting a healthy strong steady stream. As it ran longer the deep growling midget with hammer noise lessened but till ran horribly rough an sounded like metal on metal squelching. It wasn't constant though. Also when I was running the compression test, I pulled the air filer to gain better access. When turning over with the starter, I could hear a "ticking or knocking" sound while cranking. It was very slight, but there. Going to pull valve covers as soon as I can. Unfortunately its going to be a few weeks as I go in for sinus surgery Monday morning and have to get the 7.3 back on the road this weekend. Sent from my XT1080 using Tapatalk [/QUOTE]
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Angry midgets in motor after startup!!!
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