Possibly a sticking T-stat not opening, or a blockage in the hoses or rad not letting enough water through.

Andrew
1984 Westy "Speed Bump"
1996 VW Jetta Trek  "Little Beep" (the wife's car)
The Basket Bus  http://www.creativegifts2go.com/vw.html

--- Jeff Emrick <jemrick@WOH.RR.COM> wrote:
>I tried the bike pump method for purging air from the cooling system.  Seem=
>ed to work great.  I tried it because my 84 still runs hot unless the heate=
>r is on full blast.  Everyone says air in the cooling system.  It's getting=
> too hot outside to be hot inside!  I have felt the radiator when the van i=
>s running hot and it seems cool and the electric fan doesn't come on. I tho=
>ught I may have a plugged radiator but coolant came out of the radiator fro=
>m the bleeder valve with a slight pump.  Does this leave the water pump as =
>the prime suspect for overheating?  Thanks Jeff

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