How bout the Distributor Drive Gear Pin? Pull the Distributor and check the
gear at the bottom... if Half that pin is gone it might still run for a
while before it lost timing.
Keep in mind that gear is also driving the shaft for the Oil pump.... and if
the gear shears the oil pump will quit spinning as well.... not that it will
matter.... as the timing goes wacky the motor is going to Stall....
Just my guess.... Keith
----- Original Message -----
From: "ghalvorson:First ghalvorson:Last" <ghalvorson@earthlink.net>
To: <land-speed@autox.team.net>
Sent: Tuesday, November 07, 2000 1:04 AM
Subject: Whatizit and Whereizitfrom?
> List,
> Sorry about the last message, used wrong address.
> I have this weeks $10,000 question. What is it from?
> After about a thousand mile break in I decided to reset the valve
clearances
> on my big block cheby motor, just to check things out. Under the cover,
> laying next to the valve cover rail, on the lower side, between cyl #6 and
> cyl #8 is a piece of metal. It is something that has clearly broken off
> from something. It is a cylindrical shaped solid steel pin, .310" in
> diameter with the good end having the edge just slightly beveled. Just
> enough to take away the sharp corner and being flat on the end. The other
> end has a diagonal break with the long side of the pin having a total
lenght
> of .580". The short side is about .430" long. The break is clean and
> pretty flat. It looks like a dowel pin of some kind that has sheared off.
> There is a definate wear mark on about .480" of the pin. As if it were
> inserted into something. When I first saw it I thought of the locating
pin
> on the end of the camshaft. It may be. I can't think of anything else in
> the motor that has a round pin like this. The engine runs fine, is really
> strong throughout the RPM range. How would it get up under the valvle
> cover? Any thoughts out there on where it's from and how will it affect
the
> longevity of the motor?
> Gene H
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