[F500] A little history on cold seizing

[Cindy and Dean]

That's an interesting cold seize scenario. It seems that plugging the bypass
circuit and running no thermostat(or altering the thermostat to never run
the bypass circuit) would fix that though, but of course it's illegal. A
cold seize fixed by removing the device causing the cold seize, but wasn't
designed to prevent them.

The problem with the heat soak plan is when you don't have crew, you don't
have a reliable electric start, and something the session before causes you
to sit on false grid. Now it's over heat time or you miss most or all of the
session because you had to shut her down to prevent the over heat for a
while. 

Have a good one.....DeanO

-----Original Message-----
From: f500-bounces+cdoakes=bellsouth.net at f500.org
[mailto:f500-bounces+cdoakes=bellsouth.net at f500.org] On Behalf Of
jdmurphy47 at aol.com
Sent: Friday, October 21, 2005 2:22 PM
To: f500 at f500.org
Subject: [F500] A little history on cold seizing

Back in the mid 1980's, Ray Little cold seized a Kawi at least once (or
more) at Road Atlanta.  He would crank up his car in grid with a stone cold
Kawi and jump out on the course for a practice/qualifying session flat out
to get away from everyone else and he would make it as far as the long back
straight dip before the bridge; by this time, the 120 degree thermostat had
opened allowing cold water to hit the hot coated wall aluminum cylinders and
- bingo - seize the piston and rings.  The rest of us would see him parked
on the side of the course as we came by.  His water temp gauge would show
130 degrees but Ray had to replace both the piston and the cylinder,
sometimes both sets of them.  This experience confirmed the need to briefly
heat soak your motor before each session and look at ways to keep the
thermostat from suddenly dumping cold water into a hot motor while at top
speed.
 
Jim Murphy
Grizzled old veteran
_______________________________________________
F500 mailing list - F500 at f500.org
To unsubscribe or change options please visit:
http://f500.org/mailman/listinfo/f500
*** Please, DO NOT send unsubscribe requests to the mailing list! ***