Quote:
Originally Posted by dredgeguy
I just purchased a DeWitt radiator and a set of new hoses from Jerry's. Looking forward to getting it installed. Last week in 92 degree heat got stuck in traffic and temp was pegged before I noticed it. Almost had a stroke......checked the digital gauge and it was 258! Turned off the A/C, turned on the heater and good luck was with me. Traffic opened up and I got to 70 MPH and it cooled down to 202 in a couple of minutes. Then I went home, cleaned my pants and ordered a the same radiator recommended by fellow Wazoo, SecondChance.
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Well..........that is the issue......the ZR-1 in traffic even with a clean stock radiator does get HOT.....let us know just how clean your stock (if it is stock) radiator was when you remove it (also .....clean the AC Condenser and Oil Cooler when you are there). That will be interesting.
You do not have to cut or modify the Radiator Housing when you remove the radiator but let the engine sit overnight and remove the Oil Cooler Adapter setting the hoses and adapter off to the side (do not disconnect them from Oil Filter Adapter). That will allow you to lift the Radiator Housing up on the Drivers side followed by lifting (bending the tab a bit) the Radiator Housing on the Passenger side last. Reverse for Installation of the Radiator Housing after New Radiator installed.
It is easiest to separate the Thermostat Housing so you can remove the Bottom Radiator Hose (may take a razor blade to cut hose lengthwise to get it off stock radiator). Remove Thermostat and may want to install new thermostat when you are at it. I remove the two (13mm head) bolts holding the thermostat housing to the frame before I remove the three (13mm heads) thermostat Housing Bolts.
One short bolt holding the thermostat housing to the bracket and one long bolt holding the thermostat housing to the bracket also and holding the thermostat housing halves together with the third long bolt. It is a bit tricky holding the thermostat in place when assembling (use a putty knife). the new or old thermostat making sure the rubber thermostat gasket is not misplaced.
There is a bit of a science to refill with coolant but if water pump is not drained you should be fine when refilling the reservoir in front of the Passenger Side windshield with coolant (slowly as air should bubble back from vent hose at top of radiator).
Make sure the two Injector Housing Coolant Manifolds are getting warm within one minute after firing up the engine. Before the radiator pressure rises, turn the engine off several times and add coolant to the Coolant reservoir on passenger side just in front of windshield.