Thanks, but I don't think that is it. I believe the flakes to be the
anti-scuff coating from the piston skirts. There is little doubt about that
now. My big question is, Should I worry about this? (clogging oil pickup
or an oil prot somewhere and causing oil starvation). Two different dealers
said it was normal. I went back to my regular dealer and tried to get
something in writing. They wouldn't do anything unless I left the truck in
the shop for them to look at. I made an appointment, but about thirty
minutes later they called and said DC would not authorize them to take of
the pan and look at the pistons as "nothing was wrong". I have the 7/100 $0
deduct warranty and they basicall told me, Don't worry, drive the truck, if
something does happen the warranty will cover it. I am afraid of "issues"
if a problem occurs because of oil startvation.
Thanks again,
Wxman
<Anthony_Gonatas@ars.aon.com> wrote in message
news:86256AC6.004EA24D.00@usmtacst02.aon.com...
>
> This piston crown has an ash color, which shows that the engine has run
hot.
> The ash color is actually piston material that has started to flash (melt)
and
> turned to tiny flakes.
> If this engine was run any longer, it probably would,ve developed a hot
spot and
> hole near the exhaust side and failed.
> The main causes of this problem are too lean carb jetting, too hot spark
plug
> range, too far advanced ignition timing,
> too much compression for the fuel's octane, or a general overheating
problem.
>
> http://ericgorr.com/twostktech/pistondiaguide_2t.html
>
> Not sure if this is the cause of your flakes, but I thought I'll pass this
info
> to you.
>
>
>
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 12:02:47 EDT