“OCTOBER STAND ALREADY AT THE YARD”
For decades, the classic Zhiguli and Niva heater has remained almost unchanged, and with it its birth defects. One of them can also be considered classic: the opposite squeal of a fan motor. Imagine a cool companion in a cool evening in your car, a conversation begins, but then you make an irreparable mistake - turn on the heater fan. From the harrowing screech, the girl turns pale. What can I talk about next?
What only experienced did not offer - from periodic lubrication of motor bearings to its radical alteration! But half measures are ineffective, and the manufacturer is silent. What to do?
It seemed to us an attractive idea to build another fan, the “eight”, into the car (photo 1). Autumn is in full swing, and the motor of the heater of our "Niva" VAZ 2121 4 is already screeching - it’s easy to imagine what will happen in cold weather! The remnants of the grease have dried up, and in the winter they will become numb …
We place the new fan in the engine compartment. The most suitable place is the plastic air intake. It is not difficult to process it, but so that the plus does not turn into a minus, we immediately warn: before you start sawing or cutting, very carefully figure out what and how you will install, fasten, etc. The rush can only hurt.
So, to the point. We remove the plastic grill and visor, and then calmly, prudently prepare the place for installing the fan, cut out a groove under it, carefully adjust it in place. The Samara fan case is slightly larger than we would like. How to squeeze it? We remove the standard brackets of fastening (all the same, they will not be needed!), And we slightly precipitate the iron shield on which our unit will lie down with hammer blows.
Here we recall that the installed fan should not touch the car engine or the ribs of the air inlet of the hood (otherwise noise, wear, breakage are inevitable), impede the operation of the air supply shutter to the heater, etc. Fitting is a painstaking task.
Well, how to connect the fan to the heater? Through the adapter shown in the figure. (We do not specify the sizes - do it locally, just like we do.) Adapter material?.. No, not anything! Ordinary plywood, for example, will not work - it will get wet pretty soon. A metal sheet? On a thin fan, it can vibrate unpleasantly, while a thick one is heavy. Our solution is a 5 mm thick PCB sheet.
The fan must be correctly oriented - with the output of the “snail” from below, so it must be fixed to the adapter, and the latter must be firmly connected to the heater body (see. Fig.). But how? For this we used cunningly (L-shaped) curved M3 screws 15 mm long. Four attachment points are enough.