[T2] [VB] Heater controls?

[Kevin Guarnotta]

Hi John,

Thanks for the info. When I checked the heater cables - I think they were adjusted as tight as they could be (is the holding bolt was at the edge of the point where it could contact the wire. I'll double check that. 

The fan is working - got one from Avocado Tom (original kept blowing fuses). It works, a bit loud, but it works. I am wondering about these one way flappers. Is there a diagram that shows where these are?

-Kevin Guarnotta
Jamaica Plain, MA

’78 Westy
'69 Singlecab
'65 Ez-camper


-----Original Message-----
From: John Anderson [mailto:wvukidsdoc at yahoo.com] 
Subject: Re: [T2] [VB] Heater controls?

oh no Kevin, heater box controls massively affect airflow, if not fully open to the front (hard wired like I mentioned before if cables have stretched) they are just dumping airflow and heat under your gas tank there up by the tranny.  It doesn’t adjust temp by blending, rather just dumps total heated airflow.

Bulk of flow is from the electric fan engagement as well, if it isn’t contacting at the controls but you know when/if it comes on (squeaky squealy).   Often the gaskets sealing the heater boxes to the cooling fan shroud (again originally asbestos, replacements were molded something else) are gone so little flow until the electric engages, those being gone are a big leak as well of course.  And of course if the one way flappers aren’t present in the shroud to heater box junctions, when the electric kicks in it is just fighting and blowing back into the engine cooling fan shroud instead of to the front.  The flappers like the gaskets often disappear in warm climates.

John

Sent from my iPad