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kaiser · 24th February 2009, 10:23

The temperature of the housing will be around 100 degrees. The water temperature goes up to 105 in traffic, under normal conditions, and there is no reason to expect much less through the plastic.
There can be no doubt that this is hot for many plastics, also the endless heating/cooling fatigues the plastic; the reason we see these types of failures more frequently is, that we are getting to the end of the useful lifespan, about 5 years I guess under such pressure and temperature conditions.
I am doing the costing for the metal unit at the moment.
If we go ahead we are looking at about 2 weeks.

24th February 2009, 10:23	#24
kaiser This is my second home 75 Tourer 2.5 Auto, 1.8T, 75V8ZT Join Date: Jun 2007 Location: Johannesburg ZA Posts: 6,200 Thanks: 1 Thanked 859 Times in 613 Posts	The temperature of the housing will be around 100 degrees. The water temperature goes up to 105 in traffic, under normal conditions, and there is no reason to expect much less through the plastic. There can be no doubt that this is hot for many plastics, also the endless heating/cooling fatigues the plastic; the reason we see these types of failures more frequently is, that we are getting to the end of the useful lifespan, about 5 years I guess under such pressure and temperature conditions. I am doing the costing for the metal unit at the moment. If we go ahead we are looking at about 2 weeks. Last edited by kaiser; 23rd June 2009 at 03:02..