Jeff,

Without knowing more I would say that it sounds like it. When you
reinstalled, did you bleed the cooling system with the heater valve on
maximum hot? If you didn't there would be a big bubble trapped in the
highest part of the heating system.

Jim

On Sun, Sep 14, 2014 at 7:28 AM, J Stewart <fonman4277@comcast.net> wrote:

> 1985 Westy, 1.9 with new right side cylinder head. Driving back from my
> apartment last night it was actually getting a bit chilly so I turned on
> the heat. When I did the cylinder head I replaced the water pump,
> thermostat, and temp sensors. Prior to that the van had always run cool and
> heater output was on the weak side. Now the temp needle sits just a little
> north of the LED, still touching the LED, but just a little high. Anyway,
> last night the heater output was very hot, but for about 10-15 seconds it
> turned cool then hot again. Does this mean I still have a bit of air in the
> cooling system? I'm thinking maybe yes.
>
> Jeff Stewart
>