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>Anything tricky/different doing about a 230 water pump, other than paying >$100 for one?
$100 is way too much for a waterpump for that car. You should be able to get a new GMB (not rebuilt) for under $40. Nothing tricky about them other than being careful not to pinch the rubber ring on the heater pipe and getting a good seal between the pump and the head. A little silicone on the rubber ring acts as a lubricant as well as a sealer. A coating of silicone on the face of the rubber seal between the pump and the head also insures a good seal. Allow it to sit after assembly long enough for the silicone to cure before adding coolant and bringing up to temperature. You will see that several of the bolt holes are oblong. This allows you to apply pressure with a hammer handle (or some other lever) to insure a good seal between the head and the pump. Continue to apply this pressure as you tighten the other fasteners.
Randy
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