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I would be more concerned with the damaged bearing journal. A fixed cam in a bad journal will result in another bad cam. Were the caps on correctly? Good catch on the teeth, looks like the one two to the left wasn't far behind
Looks like some level of oil starvation took place at one point. Might possibly have had issues with cracked oil pickup tube from misaligned balance shafts.
Cam chains should be at max be an 80k item if not 60k item. You should see the amount of wear the tensioner pads show in some cases. This was never shown as a service item but should definitely be considered one. You are on borrowed time and will end up paying dearly in the end.
I have seen cam chains snap at around 60k from broken/failed tensioner pads. Not typically but has happened. Took both cams with it when it failed as well as lots of bent valves.
Looks like some level of oil starvation took place at one point. Might possibly have had issues with cracked oil pickup tube from misaligned balance shafts.
Cam chains should be at max be an 80k item if not 60k item. You should see the amount of wear the tensioner pads show in some cases. This was never shown as a service item but should definitely be considered one. You are on borrowed time and will end up paying dearly in the end.
I have seen cam chains snap at around 60k from broken/failed tensioner pads. Not typically but has happened. Took both cams with it when it failed as well as lots of bent valves.
Thanks, PO had the pads replaced, current inspection and recomendation for the scoring is a polish.
I would be more concerned with the damaged bearing journal. A fixed cam in a bad journal will result in another bad cam. Were the caps on correctly? Good catch on the teeth, looks like the one two to the left wasn't far behind
As far as I was told yes, caps on correct, and they are are aware that they must go on a certain way too.
I however am not familiar with this. Can you explain?
The pickup tube has a screen so it wont get picked up. Also, they pytically settle at the bottom and can be found when you drop the pan. Another option would be to switch to a 951 style magnetic drain plug and hope it picks it up. Lastly, you can also try fishing a magnetic stick in through the drain hole to see if it sticks. There are baffles in the pan so the likelyhood of it sticking is low.
As far as I was told yes, caps on correct, and they are are aware that they must go on a certain way too.
I however am not familiar with this. Can you explain?
The front cap is stamped with a 5.xx number, while the rear cap is stamped with a 8.xx number. They might have been mixed up when the pads were done last
11-30-2016, 12:57 PM
Cam Shaft Missing teeth, pics and options?
