Forum Discussion
BenK
Oct 31, 2012Explorer
If you get another chance to see the parts, could you take some pictures?
Am mainly interested in the pump innards and on that, the piston bottom/cam follower/cam face.
Is this one with the DLC only on one side? Anyone know if cam face or follower?
Can someone post a cross section of this pump? IIRC, there is a roller in the
cam follower, or am I mixing it up with something else?
Such a low miles and hours makes your components extremely valuable for diagnostics/forensics
Now that there is more info, albeit still a small sample size, am now convinced
it is inside the pump cam cavity.
What mechanism(s) of failure is/are still up in the air for me
Trail telltales for me are: The addition of DLC to both surfaces, the
change to only one sided DLC, the ever constant H2O warnings or that
they look for that first (is that just a ploy, or real), that this
is across many badges and engine sizes.
Also, if you can either scan or type in the work order info. *ALL* of
the parts listed might be telling. So will be EACH task. Maybe the
order/sequence important
Will they give you the parts? If so, are you into photography? If not
would you send me the part(s) and I'll take some high res close-ups
and post for forum discussion.
Did that for the GMT800 receiver where one forum member had it actually
break off. Most thought pieces were gone, but after taking a few
hundred high res pictures, was able to put it back together and
actually sequence the stages during the failure that eventually
lead to the part tearing off. Only had the receiver pin box and
only images of the receiver cross tube 'hole' vacated by his pin
box, but it all went back together visually after taking closeups
of mating separation edges (bent & mangled at that)
Am mainly interested in the pump innards and on that, the piston bottom/cam follower/cam face.
Is this one with the DLC only on one side? Anyone know if cam face or follower?
Can someone post a cross section of this pump? IIRC, there is a roller in the
cam follower, or am I mixing it up with something else?
Such a low miles and hours makes your components extremely valuable for diagnostics/forensics
Now that there is more info, albeit still a small sample size, am now convinced
it is inside the pump cam cavity.
What mechanism(s) of failure is/are still up in the air for me
Trail telltales for me are: The addition of DLC to both surfaces, the
change to only one sided DLC, the ever constant H2O warnings or that
they look for that first (is that just a ploy, or real), that this
is across many badges and engine sizes.
Also, if you can either scan or type in the work order info. *ALL* of
the parts listed might be telling. So will be EACH task. Maybe the
order/sequence important
Will they give you the parts? If so, are you into photography? If not
would you send me the part(s) and I'll take some high res close-ups
and post for forum discussion.
Did that for the GMT800 receiver where one forum member had it actually
break off. Most thought pieces were gone, but after taking a few
hundred high res pictures, was able to put it back together and
actually sequence the stages during the failure that eventually
lead to the part tearing off. Only had the receiver pin box and
only images of the receiver cross tube 'hole' vacated by his pin
box, but it all went back together visually after taking closeups
of mating separation edges (bent & mangled at that)
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