Alfa Romeo Forum - View Single Post - Ah well, at least it's not the stepper motors! 164 heat...

Avocet · 29-05-2008

I'm slightly confused here. You mention the temperature control flap but then talk about taking the distribution drum out???

As far as I can remember, the temperature is controled by a flap with an arm on it as you describe. It shouldn't have any appreciable resistance to it at all.

The distribution is controlled by a drum and there is a "T" shaped drive to it from the stepper motor which just pushes into a "T" shaped hole in the end of the drum. I've had the plastic split on one of those before and if you can retrieve the broken bit, you can do a good fix by epoxying a bit of copper central heating tube round the broken plastic bits to hold them together.

29-05-2008	#5 (Post Link)
Avocet AO Member Join Date: Oct 2006 Posts: 349 Member car: 1990 164 Lusso V6	Re: Ah well, at least it's not the stepper motors! 164 heat... I'm slightly confused here. You mention the temperature control flap but then talk about taking the distribution drum out??? As far as I can remember, the temperature is controled by a flap with an arm on it as you describe. It shouldn't have any appreciable resistance to it at all. The distribution is controlled by a drum and there is a "T" shaped drive to it from the stepper motor which just pushes into a "T" shaped hole in the end of the drum. I've had the plastic split on one of those before and if you can retrieve the broken bit, you can do a good fix by epoxying a bit of copper central heating tube round the broken plastic bits to hold them together.