land-speed
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Re: Whatizit and Whereizitfrom?

To: Keith Turk <kturk@ala.net>
Subject: Re: Whatizit and Whereizitfrom?
From: Dave <ddahlgren@snet.net>
Date: Tue, 07 Nov 2000 04:44:47 -0500
If this thing has roller rockers I would start looking at them...
Dave

Keith Turk wrote:
> 
> 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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