A Mystery of history
the round punch mark with white-out for clarity. This was the mark I remember being told to use back in the mid '90s on the earlier Camry. My problem was that I couldn't find any information anywhere to verify my experience. Everybody I spoke to and everything I read said the 12 o'clock punch mark was the one to use.
Notice how beautifully this little round mark matches up with the hole through the gear. Looking straight in, it's dead in the center of the reference hole.
This worn out bearing was typical of the other four. Applying shop air to the oil gallery, we had seen a large volume of air hissing out between the cam bearings and the journals, particularly the third one back.
Reinstalling the lifters in their bores to plug that oil passage, we reapplied the air to verify good oil galley flow to the cam journal bores. And while it didn't appear that any of the cam bearings had spun, we carefully inspected each bearing bore for signs that they might have.Under PRESSUREDVEHICLE: 2000 Jeep Cherokee
MILEAGE: 39,257 miles
DRIVETRAIN: 4.0L engine, automatic transmission
COMPLAINT: Low oil pressureFlying blind can be costly, not to mention annoying, and it can take several different forms. Some of the stupidest mistakes I
MILEAGE: 39,257 miles
DRIVETRAIN: 4.0L engine, automatic transmission
COMPLAINT: Low oil pressureFlying blind can be costly, not to mention annoying, and it can take several different forms. Some of the stupidest mistakes I
