Water pump/thermostat question

[Jim Buck <vwpride@mixi.net>]

I read somewhere that drilling a pilot hole in the flange of the
thermostat will help eliminate air in the cooling system, and assure
constant flow to all components.  My question is, can I drill a small
hole in both the upper AND lower flange without impairing function? 
Also, I discovered that the ball fitting that holds the thermostat in
the water pump has warped (plastic fitting) and caused leakage.  


-- 
Jim Buck,
ES #99
1997 Solo II Points Champion,
E-Stock Champion,
Fort Wayne Region, SCCA 
1987 Scirocco 16 valve
1982 Rabbit Convertible
1996 Jetta GLS
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