Date: Sat, 30 Aug 2008 20:15:54 -0400
Reply-To: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Subject: Re: Heater core and airbox Q.& A
In-Reply-To: <0b1701c90af2$74253a50$0b00a8c0@mike2d93581d7f>
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You will be surprised how much heat you will have with a new core. They
clog internally and get coated with road dirt on the outside.
All the air going through the air box is unheated outside air. You need
contact time with the core and to direct the air through the core. That is
the job of this plate. Do not remove or modify. You will not make things
better.
Many folks immediately turn the fan speed to #3 and open the vents fully
when they want heat. If you look at the pictogram on the right of the
heater controls, they show the lever settings for full defrost. Note there
is a number 2 there also. Yes, max heat effectiveness will occur at a fan
speed of 2. Also note the floor lever picture has that little zig zag. The
is the position for best heat at your feet.
Dennis
-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Mike
Sent: Saturday, August 30, 2008 6:48 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Heater core and airbox Q.& A
Maybe you should add some extra holes to increase the airflow for added
heat, if yours is inadequate now. If you remove it completely, you may be
sorry later; it's probably there to add a needed restriction, or to stop
whistling sounds, or some other equally good reason. Maybe it's part of a
hot-fotwell fix. I've never heard of it or seen it in the manual; I've
never had my airbox out and apart (yet!). I'd re-install it if I was in
your shoes; after all, it's such a PITA to get to it again.
Anyone else care to add an explanation or recomendation?
Mike B.
But one of the puzzling items I found inside is a large plate that blocks
off airflow thru about 2/3 of the heater core. It is perforated with one
row
of ~1/4" holes along the bottom edge, and three staggered rows of ~1/4"
holes across the top edge. Is this normal? it was sealed in, against the
core, as if it belonged there, but I have never heard mention of it. (And
I
am one of those goofs who reads the Bentley for fun, just to see what is
in
it, and what I will be in for, when a job comes due.)
>
> Any clues? My heater never seemed very strong, maybe this is why? The
> only clues in the archives were some unanswered questions about this
same
> item, from 2006, in an airbox transplant of a 1985 into an '80.
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