David;  Do you know any real old mechanics. The ole timers here always used
a product called water glass, available from the Drug Store.  I wouldn't
want to put in more than a 1/2 teaspoon in the coolant to start with, as
this stuff can be really nasty if you get to much in.  I have seen it seal 6
inch cracks in iron blocks.  One fellow I worked with dumped a pint in his
old ford tractor, ( a little is good, a lot is better theory) needless to
say he had to replace the water pump, as it set up.  JohnD
----- Original Message -----
From: "David Leonard" <Daveleonard@cox.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Thursday, March 11, 2004 3:00 AM
Subject: [FlyRotary] Pin Hole Coolant Leak


Today I discovered several pin-hole leaks in my cooling system (one drop
every several minutes).  They are coming from a weld on the water pump
housing.

Please tell me someone knows a good way to seal such leaks.  A re-weld would
probably require removing the entire engine  :<

I also made the first attempted start today.  Turns out I have no spark...
Guess I won`t be the first to go down that road.  I connected the signal
from the CAS in parallel with the engine monitor.  That connection will be
the first to go.

Dave Leonard


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