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1

The two main things that would happen to engine with results as you describe. Easiest to check is the thermostat. The thermostat has a pin coming out of it which locates into the thermostat housing. The location of the pin breaks off and allows the thermostat to float, causing erratic temperature control. The second item is the water pump impeller. They are ...


2

Historically the water pump was at the front of the engine in close proximity to the vehicle radiator, when vehicles were mostly rear wheel drive. There is no real advantage with todays vehicles but they continue to be at the front of the engine. Using the timing belt to drive the water pump lends itself to compactness at the front end of the engine. Some ...


5

Engine safety. If you lose an accessory belt driven water pump, you're likely to keep driving, thinking the "oh, I just don't have an alternator" while you're busy cooking your engine beyond repair (normally with no temperature notification/change, if anything it'll read cold). When the water pump is on with the timing belt (or geared to crankshaft as is ...


5

I think the main reason for this is convenience. It's an easy place to run the water pump. If you ran it out to a fan belt, it would be in the way of the timing belt while doing it, or it would be a really awkward mess trying to work around it. The second reason is for compactness. With the water pump stuck out of the way, it physically makes the engine ...



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