Alright, I'm trying to figure out why I had temp spikes (on the highway, not around town) and mebbe figure if that's what killed my headgasket (it went between #1&2 cyls).
I've got a heater hose from the waterpump going up to the heater core, the other side of the core goes into a nipple I put @ the thermostat housing section of the head - out the top where a portedvac swtich used to live.
The bottom of the thermostat housing has a reducer to #6AN @ a 45' for the braided line to the turbo, coming out the turbo is another section of #6 that goes into the water jacket below/behind the PS pump & bracket.
My question is am I messing with the flow of things? I read (after a search for heater hose routing) that the 5/8 line off the wp is a suction line - if so I should be pulling coolant from the motor BEFORE the thermostat.
I have not run the drilled thermostat - but I've got it ready to go in once the headgasket/bolts get here.
A Dakota doesn't use a heater control valve...... Should I re-route the turbo's coolant line from the Tstat to the other side of the heater core?