Posted by gmharris [71.105.36.40] on Friday, February 17, 2012 at 21:37:36 :
In Reply to: cooling system flow diagram posted by wayneh [68.55.55.71] on Friday, February 17, 2012 at 20:19:12 :
The small hole is evidently a bypass hole and allows the water pump to work with both bypass and non-bypass engines.
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