[T2] Heater controls?

[Kevin Guarnotta]

In for a penny in for a pound...here is an update:

I started going through the duct work in the back of the bus. At the booster fan - removed these ducts - great airflow through here. Shoved my vacuum through where ducts go into engine tin to see if anything came up -but all seemed clear.

Next stop heater control flap boxes. The driver side heater cable appeared to be adjusted as tight as possible - i.e. the end of the cable was pulled as far through the barrel nut as possible. The other side looked like I could possibly adjust a little bit. Maybe 1/8". But I figured I should give it a try. Of course the bolt snapped when removing. That was fun trying to drill out. Hopefully I have an extra barrel nut clamp thing in my part stash. Found one.

I ended up removing the top of the heater box - I think this is called the heater box control flap - I decided to do this on both sides while at it. This took a bit of work, but figured it was a good time to take it apart, address any leaks, put some anti-seize on this stuff, throw some paint on any rusty parts. Everything was relatively solid - but some surface rust.

On the passenger side the seal was the original asbestos seal, on the passenger side it was replaced with an orange silicone boot. Both in good shape - but while I've got this apart, I think I'll replace that asbestos seal. The PO gave me a box of parts - and I found a grey version of the orange seal. Part number 111-819-945, or 819-945-73 74. This is going to go on - now what to do with old asbestos seal?

I've done a quick cleanup of these boxes, and some master series silver primer, and black chassis undercoat.

I've checked airflow at forward end of heater box - and it feels pretty good. Not as strong as at booster fan, but there must be some loss right?

Ok - just waiting for paint to dry on heat control flapper boxes, then I'll re-assemble and see what I get for air flow at each junction.

Thanks for listening, and for all your tips.

-Kevin Guarnotta
Jamaica Plain, MA

'78 Westy
'69 Singlecab
'65 Ez-camper