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Heat ah at least warmth.

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Russ Austin

Russ Austin

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After doing my dash and having my facia restored, I put the heater in. Wasn't easy (all the hoses and bits) so after getting engine bay hose for the left-hand side. I fired it up and let it run for awhile and turned the heater fan on, its medium hot to warm and blows pretty good. I'm happy!
 
OK Ok It was a little difficult because my hardtop is on but here's how it looks now. A couple of things of notice are the coiled spring wire for my horn (rack and Pinion) and the polished aluimium tab to help open the glovebox.
 

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One other thing I did was fabricate an auxilliary switch panel for my driving light and fog light as well as my turn signals and then finished in crinkle paint.
 

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I did the same thing with the horn wire on my TR3 as shown in this thread.

For the directionals, I bit the bullet and installed the MGA switch with the canceling timer in it.
 
Russ,

My heater rheostat has a slight detent in the off position. If I don't get it all the way in the off position, it drains the battery. So be aware of this. I now check.

Lookin' good.

Peter & Cathy
 
PeterK said:
Russ,

My heater rheostat has a slight detent in the off position. If I don't get it all the way in the off position, it drains the battery. So be aware of this. I now check.

Lookin' good.

Peter & Cathy
Click to expand...

You can easily fix this. The heater taps off the back of the center instrument panel...just move the tap point to a switched (with the key) lug. I know the wiring diagram shows it coming off an always hot post, but most don't, for obvious reasons of battery drain.

John
 
The heater motor on my TR3A is the only thing on the car that's noisier than the exhaust! But it keeps the top of my left knee warm (it's RHD)
 
CJD said:
I know the wiring diagram shows it coming off an always hot post,
Click to expand...

Where is that, John?

The workshop manual specifies that the heater motor should get power from the "hot side of the wiper switch", (which is the "green" circuit, switched and fused), but obviously that is for early cars without self-parking wipers. It is my belief that the factory wired the heater motor to the hot terminal on the fuel gauge on the later cars; which of course is still the "green" circuit (and hence not hot with the key off).
 
I don't think that the po that rewired my 3A in all red wire paid much attention to details like that. But everything works ao I can't complain too much.
 
TR3driver said:
Where is that, John?
Click to expand...

You're right once again, Randall! I re-studied the diagram, and the heater is, in fact, supposed to be switched. So, if the heater blower works with the ignition off, it is always mis-wired.

John
 
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