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Im doing my head gaskets right now and the cam journals look pretty worn. theres 113k on it now and I bought it with 90. any ideas why they would be so bad so soon. Ive always had good oil pressure. thanks
Nope, not on these engines. Here's a pic of a 4.6L that ran out of oil for less than 90 sec while my niece pulled off of the road. (Oil pressure switch broke and pumped all of the oil into the street) It's a little blurry, but you can see the scarring and the aluminum the rolled over the oil feed hole.
Dover cylinder heads actually can repair heads like those,and has a cam bearing available for the head after the repair that can be replaced if damaged.They use a tri-metal type bearing like rod and main bearings.I know of a few performance guys that use them even if the heads are perfect-it's insurance against the heads being ruined after they've spent $2000-4000 in portwork and valvetrain if they have a failure of oil starvation issue.
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
04-11-2004 10:09 AM
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