Does the Water Flow when the thermostat opens? It occurs to me that a blockage at a crucial point in the Water Jacket or Cross Over would cause the Overheating even
though the T’stat was open.
IS the engine actually Overheating? Or are you depending on the Gauge? I know you said you had tried 2 Gauges but, Is it possible to trap water or block the Water
Temp Sensor, with a wrong Gasket maybe, so that it’s not reading actual Engine Water Temperature?
As a V8 owner I’m not conversant with the 6 Cylinder. Just trying to think outside the box.
I’m sure you’ll figure it out.
From: Forward Look Mopar Discussion List [mailto:L-FORWARDLOOK@xxxxxxxxxxxxx]
On Behalf Of Jesus Jimenez
Sent: Wednesday, March 21, 2012 6:51 PM
To: L-FORWARDLOOK@xxxxxxxxxxxxx
Subject: [FWDLK] help again
I am completely dumbfounded and I have hit a dead end on my cooling problem with my '55 Ply 6 cyl. Essentially, the motor overheats as
indicated by the meter. The meter hits the highest temperature even before the thermostat opens. Consequently, I have worked as systematically as I was able to try to eliminate possible problems but still, the meter indicates overheating before the thermostat
opens:
These are things I have done or observed:
1. changed the thermostat three times from 180 to 160 (tested both thermostats separately in hot water and both open)
3. replaced the radiator with another one
4. replaced the water distribution tube with a brass type
5. replaced the water pump with a NAPA brand
6. replaced the temp gauge
7. replaced the temp sensor twice-the current one is brand new from a '57 Chrysler
8. replaced the wire sending unit twice with wires of different gauges (#14 and #16)
9. checked oil pressure --normal
11. done reverse flushing
12. checked the water temperature with a glass and metallic thermometers and both indicate 180 degrees as the water circulates when the thermostat
opens.
As the motors runs, water circulates and both hoses are hot but by this time the meter indicator is out of range and have to turn the
engine off.
Hope someone has some other ideas or maybe knows what's going on.
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