[Shotimes] Overheated car

[kerbyh@netzero.net]

I had good oil pressure, after the bearing spun and it sounded like a threshing machine under the hood!  Then again I had good oil pressure after the crankshaft broke, not sure what the oil pressure was like when it dropped the valve.

Kerby

--- "Carl Prochilo" <gr8sho@prochilo.myserver.org> wrote:

Ouch.  Mike, I just posted recently on my experiences here too.  In there
I said that when I heard the knocking noise, I felt no perceived loss of
power.  If the noise really is coming from the bottom-end, you should be
able to put a scope near there to have a listen.
So the net of this is that you can have a damaged connecting rod bearing
and still have visibly good oil pressure?

Carl Prochilo
92 Ultra Red Crimson

> That is what killed my first engine.  It took several months before the
> bearing spun, but that was the result.  I'd bet on a rod bearing knocking.
>
> Kerby
>
> --- "Midwest SHO Specialists" <SHOtimes@midwestsho.com> wrote:
>
> I picked up a SHO for my personal use as a winter car.  It is a 93' ATX
> Red/
> black in pretty much like new condition.  The catch is that the motor was
> overheated.  The heater core hose sheered and the owner didn't know that
> and
> proceeded to drive the car.
>
> Long story short, it wouldn't idle well and ran like it was on 5
> cylinders.
> Yesterday I pulled the intake and replaced the plugs and wires and fixed
> the
> coolant hose.  So I filled it up, let it bleed the air for awhile and took
> it
> out.  It runs a lot better.  It pulls as much as it ever did.  The only
> problem is a slight knock.  It happens under load as well as under no
> load.
> The oil pressure is fine though and it almost sounds like it's a top end
> noise, although it is more of a solid noise than an upper end typically
> makes.
>
> I guess, before I delve deeper into trying to save this engine, I'm
> curious if
> the extended overheating could have possibly broken down the oil and my
> fix
> might be as simple as an oil change.  As far as the head gasket goes, the
> car
> doesn't seem to be burning coolant, the oil is very clean on the dipstick
> with
> no foaminess or discoloration, and the motor feels like it's running on
> all 6
> cylinders.
>
> Any thoughts or experience here, keeping in mind that this is only the
> winter
> beater. :-)
>
> Mike Kopstain
> Midwest SHO Specialists
> 827 North Chestnut Avenue
> Arlington Heights, IL 60004
> www.MidwestSHO.com
> Sales@midwestsho.com
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