heater core

joe fremeau · Post by **joe fremeau** » Fri Oct 04, 2019 9:46 pm

Hi Just removed my heater core from my 67 1/2 1600. Can someone tell me what the electrical componet is in the heater box all so is there any way of testing it if not where can i pick one up.

Nissanman · Post by **Nissanman** » Fri Oct 04, 2019 10:22 pm

That would be the blower fan speed control resistor component.
It gives you the various speed settings of the blower fan for the heater.
You can measure the resistance of the device with a DMM.
I actually used one from a modern car since my SP310 wasn't fitted with a heater originally.
The reason that they are placed inside the heater box is to reduce the likelihood of getting coated with fluff/dust and thus becoming a fire bomb.
Plus the air flow in the 'box helps to cool the wire wound resistor coils.

1967_5 heater blower motor speed control.jpg

Curtis · Post by **Curtis** » Sat Oct 05, 2019 12:35 am

Try this drawing.

http://www.kendo-usa.org/datsun/datsun_ ... -Model.pdf

Nissanman · Post by **Nissanman** » Sat Oct 05, 2019 3:59 am

If you click on my pic. it looks much better: don't know why it gets distorted like that !!!!!

Curtis · Post by **Curtis** » Sat Oct 05, 2019 10:40 am

Nissanman wrote: ↑Sat Oct 05, 2019 3:59 am If you click on my pic. it looks much better: don't know why it gets distorted like that !!!!!

Drawing doesn't show the splice which is why I made mine. When I first pulled mine out I thought what is going on here?

Ya, posting them sometimes does that.

Datsun Roadster Forum-311s.org

heater core

heater core

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