View single post by Mark Rosenbaum
 Posted: 01-10-2007 12:50 am
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Mark Rosenbaum



Joined: 03-12-2005
Location: Kingman, Arizona USA
Posts: 532
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It's my understanding that Lotus engines with the coolant port in the head at the #4 cylinder use a different water pump with two additional ports.  I presume the second port would be for the car's heater.  However, I've never actually seen one of these water pumps, and have no idea how the two additional ports connect internally, which of course is vital with a double-acting thermostat.

For whatever it's worth, I've attached a picture of one such pump.

Attachment: water pump lotus late #1.jpg (Downloaded 131 times)