Quote:
Originally Posted by martureo
I'm with MxFrank on this one. But as a check I'd want to see a flow meter or temp gauge on this additional line. My guess is that the line is flowing from the rear cylinders into the mixing area rather than providing cooler water to the rear cylinders.
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The water pump is pushing water directly into that tapped line coming off the thermostat housing and pushing water to the rear cylinders. I've read it's supposed to help avoid hot spots on the rear cylinders and since it's pushing water through from the cold side I'm sure that helps as well. I didn't come up with this mod but it has been put to use for many years with the Super Diesel guys and multiple company across the pond sell it for god reason. It's been tested so I don't really need to question or wonder if it works.