[Shotimes] Lets play a game what happened to my 3.0

[George Fourchy]

On Sun, 8 Aug 2004 15:09:37 -0400, Ron Porter wrote:

>Not sure I buy the "fried motor" deal. The rad went while the other stuff
>was happening, and the car still runs strong.

Me either.  The piston/cylinder combination in these engines has been top notch in
construction and durability.  Engines with over 200k miles still show their factory
honing marks when cylinder walls are inspected.  How does it sound when you crank it
over?  That's a cheap compression test.  If it is pretty much the same as a known
good engine, the compression rings (and head gaskets)  are 'probably' good....if
they are, the oil ring is also probably good.  There are no cases I know of with a
SHO engine where rings have failed with no other problems. 

My Boss 302 blew oil smoke like a destroyer laying a smoke screen one time when the
intake manifold to head gasket...a cheap aftermarket version....split in two and
partially worked its way out from between the manifold and the heads.  Oil was going
into the intake ports and then to the cylinders from the valley pan where the gasket
wasn't sealing.  It was totally embarrassing and funny to see it go down the freeway
with this big blue cloud billowing out behind it.  Compression and cranking were
normal.

I'd almost bet there is a big leak where oil can get into the intake from somewhere.
 Maybe the crankcase vent tube is too oily for some reason ?  Are the plugs tight?

A head gasket failure where oil gets into the combustion chamber should be obvious,
since compression will be low in that cylinder, causing an uneven crank, and also
the combustion noise and smoke will come out the same failure, causing high pressure
in the crankcase which would be obvious with the oil cap off when the engine was
running.

George