Exhaust Lowered -- And Coolant Leak!
#11
05-20-2008, 01:24 AM
RE: Exhaust Lowered -- And Coolant Leak!
Here is an easy way to get the fan off, I was going to post this but than my internet went wack for a day or two.... First off get a 1 inch crescent wrench, open it up all the way it just barely fits. Next is grab, a pair larger vise grips but with a more square front... (Not the rounded inside, but ones with some flat surface... maybe il get some pictures) Next just use the vise grips and hammer the nut off, after that it should move fairly easy and just spin it off. (You can remove the belt, and I would to avoid damaging it... )
#13
05-20-2008, 07:32 AM
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RE: Exhaust Lowered -- And Coolant Leak!
I've heard mixed opinions on running the 195 t-stat with a basically stock engine but mostly related to heating for the winter.
I'm going to have to check out the fan on mine again. I never paid attention to the number of blades. I've never heard anything regarding a larger fan...it could be part of the tow package. Do you have an external trans cooler besides the one in the radiator?
Reverse Rotation Severe Duty Thermal Fan Clutch; w/ Thread-On Fan Clutch
Optional Reverse Rotation Heavy Duty Thermal Fan Clutch; w/ Thread-On Fan Clutch
Mine is most definitely the "Severe Duty" one they have listed. The clutch case is at least 1" thick, rather than "tapered" like the smaller unit.
#15
05-20-2008, 11:45 AM
RE: Exhaust Lowered -- And Coolant Leak!
ORIGINAL: JasonA
Yeah, and I'm not sure why (there are mixed opinions on the 195*F thermostat). That's the OE spec, and the one that came in the truck from the factory. It should work just fine. Even with the A/C on and sitting in traffic, the temperature gauge on mine never moves past the "2" in the "210" label. In other words, it never goes above the 11:00 position on the gauge. I see no evidence showing the benefit of a colder thermostat -- and in fact, besides emissions, engine wear increases as the engine temperature decreases. NASCAR guys run their engines in the 200-250*F range also (and they're not concerned with emissions).
I don't think mine has the tow package. The only transmission cooler is integral to the radiator. No external coolers, for transmission or engine oil. There may have been a HD engine cooling package back then. When you look up the fan clutch on rockauto.com, you can see a "standard" (thinner) clutch, and a "heavy duty" (thicker) clutch. On rockauto.com, they list these fan clutches for the 1997 Dakota:
Reverse Rotation Severe Duty Thermal Fan Clutch; w/ Thread-On Fan Clutch
Optional Reverse Rotation Heavy Duty Thermal Fan Clutch; w/ Thread-On Fan Clutch
Mine is most definitely the "Severe Duty" one they have listed. The clutch case is at least 1" thick, rather than "tapered" like the smaller unit.
I've heard mixed opinions on running the 195 t-stat with a basically stock engine but mostly related to heating for the winter.
I'm going to have to check out the fan on mine again. I never paid attention to the number of blades. I've never heard anything regarding a larger fan...it could be part of the tow package. Do you have an external trans cooler besides the one in the radiator?
Reverse Rotation Severe Duty Thermal Fan Clutch; w/ Thread-On Fan Clutch
Optional Reverse Rotation Heavy Duty Thermal Fan Clutch; w/ Thread-On Fan Clutch
Mine is most definitely the "Severe Duty" one they have listed. The clutch case is at least 1" thick, rather than "tapered" like the smaller unit.
Seems odd that they would offer a upgraded cooling fan without a tow package/trans cooler...maybe it is intended for warmer climates.
varsis- I figured that is where the vise grips go. I'm guessing it just holds the pulley against the housing while you loosen the fan nut. We were going to try that but since we had the air hammer laying around we just took the easier route.
