Tech:Engine/A Series/Cooling Guide
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Comparison
Water Pump:
A front wheel drive (FWD) 4A-GE water pump off either an AE82 or AE92/3 is fundamentally different from a rear wheel drive (RWD) 4A-GE pump from a JDM AE86. To begin with, the RWD pump is taller than the FWD pump (i.e. Sticks out further from the engine block). The RWD pump also has better bearings in order to support the weight of a pump mounted radiator fan. Note: If you attach a fan to the front of a FWD pump it will soon fail and no longer function. Interestingly, a RWD 4A-C water pump is almost identical to that of a RWD 4A-GE pump. The only difference is the position of the little ridge on which the cam cover sits.
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See also
- http://www.rollaclub.com/board/index.php?showtopic=19896 (Discussion On 16V 4AGE Cooling On Forum).
Article by Golberg
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