[TR] TR6 heat '70

[Bob Danielson]

The '75 manual states....."the swiveling vents can be adjusted to admit cold
air only.......air flow may be boosted by use of the blower motor." 

And that's how mine work..... Blower assisted cold air (or hot air in the
summer) but never a hint of heated air......and my heater works great. Maybe
a '70 with that outside scuttle flap works differently but I thought they
were the same.


Bob Danielson
1975 TR6 CF38503U
Running w/ Throttle Body Injection
Toyota 5 Speed & Nissan LSD
http://tr6.danielsonfamily.org 

-----Original Message-----
From: triumphs-bounces at autox.team.net
[mailto:triumphs-bounces at autox.team.net] On Behalf Of Chris Kantarjiev
Sent: Wednesday, January 07, 2009 2:14 PM
To: pethier at comcast.net; triumphs at autox.team.net
Subject: Re: [TR] TR6 heat '70

> The important thing is not whether the side-vent air source is before 
> the heater core, but if it is bofore the blower fan.

> So you are telling me that air does not come out of the side vents 
> with the blower?

I really don't remember, but I think so.

I *think* that the blower is at the bottom of the plenum stack above the
gear box, just before the flap that controls up/down air control. But ...
ok, that's not consistent, so now you've made me go and try to figure this
out.

Ah. Right. Thank goodness for the spare parts catalog. The blower is at the
top of the large heater body. The heater body does not connect to the side
vents; just to the vents at the base of the windscreen. The blower draws air
from the plenum in the body that connects the scuttle vent and ... the fresh
air vents at the dashboard ends.

If you look at the owner's manual for the TR4 or TR4A, you will see that the
factory called those vents *fresh air* vents. And the very first paragraph
about HEATING AND VENTILATION says:

	The heater is designed to heat and distribute incoming fresh air,
	or if dust and exhaust fumes are being admitted, the heater may be
	used to recirculate air already in the vehicle.

and goes on to explain just what I've been talking about.

My memory is getting worse in many areas, but for some reason I continue to
remember this sort of nonsense :-)
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