Hi all.
I am about to remove the hoses that runs into and from my heater box.
My switch is stuck in the close position and I cannot find a replacement.Ute one's are totally different.
I also do not want to butcher my airbox to fit something else.
I now want to remove the heater usage by running a water hose from the back of my cylinder head to the front where the radiator pipe is.
This will be asif the heater is turned on but actually the water will not flow through the heater but through the hose back to the normal water flow.

Is this OK?
I know there was a discussion that one must not block off the pipes as it will cause cylinder head to over heat.This is why I want to do this.
Any information is appreciated as I want to finish with this problem as soon as possible.
Thanks

Quote:It's OK. In some countries 1200s were available without heaters!

The previous discussion pointed out that when the heater switch is on the blue/cold side, the valve is blocking flow through the hose anyways.

1200GXman, what years were Datsun 1200s (B110, body style like in your photo and in my photo) built or sold in South Africa? In Japan, North America and Australia they stopped making them during 1973 when the B210 became available.

Hi ddgonzal

My GX is a 1977 model.
I think they stopped making them here in 1978.
Although our GX's did'nt get a special bonnet like in your countries.

So you say that in some countries the sedan's did'nt have heaters.
That is interesting.
I am then going to remove the hoses and just clean out everything in the radiator, but not connect it up again when putting it back.
Then I am just to be safe going to run a pipe from the cylinder head back to the radiator pipe as I have mentioned in my previous post.
Thanks for the help.

I would connect the heater outlet from the back of the motor to the bottom main radiator hose. If your area in SA has the same summers as we do in AUS, then it would be wise to ensure that the water flows throughout the whole system. Especially if youre giving your engine a hard time, it will cause a hot spot in the back of the engine and crack the head.

just run a hose or radiator pipe from the heater outlet back to where it re connects, i was thinking of adding a smaller radiator to my set up now, just for the summer months (similar idea to an oil cooler)

converted

You put 100% into words what I plan to do. Thanks

In South Africa we also get roughly the same summer temp as in Australia.
Between 30 - 34 degrees celsius.

ive done exactly that just recently and had no problems with it