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On 4 Jun 2006 at 21:21, John Jaranson wrote: > I suggest filing a slot in the end of the pivot shaft for the cooling > flaps. That way you can visually check the rotation of the cooling > flaps from the top of the engine. I do this on every engine I rebuild. VW should have done it. It lets you see what's happening up top, and also lets you stick a screwdriver in there to see if everything is free to wiggle, as opposed to seized up. You can see what the thermostat bellows is doing by just looking under the car when it's warm. You may need a flashlight. You can test the thermostat in hot water on a stove, but leave it in the little bracket that holds it. This keeps it from over-expanding and destroying itself. When you put everything back together in the engine, remove the thermostat fixing bolt and adjust the bell crank so that the flaps are horizontal when the top of the thermostat is resting against the top of its bracket, pulled up by the spring. Once adjusted, install the fixing bolt, pulling the thermostat down and the flaps closed. -- ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~