normal temp for '84??
Thread Starter
Drifting
Joined: Jan 2007
Posts: 1,908
Likes: 3
From: Supreme Soviet Peace-Loving Pipple's Kollektive of Seattle Wa
normal temp for '84??
My '84 runs 201 to 205 degrees at freeway speeds, but in traffic crawl fan kicks on at 232 and turns off when "cooled" down to 221 degrees.
Is this too hot for crossfire or is there a faulty switch/sensor that is operating in a higher range than should be? Using full synthetic oil and 50/50 mix of green coolant. Any help would be appreciated. It's run like this for the three years I've had it before and after water pump replacement. thanks in advance!
sincerely,ledfeets
Is this too hot for crossfire or is there a faulty switch/sensor that is operating in a higher range than should be? Using full synthetic oil and 50/50 mix of green coolant. Any help would be appreciated. It's run like this for the three years I've had it before and after water pump replacement. thanks in advance!
sincerely,ledfeets
Safety Car
Joined: Oct 2007
Posts: 4,426
Likes: 229
From: Pennsylvania
It's operating perfectly if you have a 195 t'stat in it. I believe that's what was put in it originally at the factory. You should probably stay away from the synthetic oil in your 84. First of all it's a waste of money in an engine that did not require it. Stick with 10W30 conventional oil. I tried synthetic oil once in my 85 and it soon started to leak around the valve covers. I know it sounds strange but I immediately put conventional oil back in it and the leaks stopped and have not returned. I would not have believed it if I didn't see it for myself. If you do try a lower temperature t'stat don't go any lower than a 180.
Safety Car
Joined: Apr 2008
Posts: 4,284
Likes: 1
From: Whitehall Pa.
That's about what mine runs.they do tend to run hot. You can always check the radiator. They sometimes try to be vacuums and suck up all sorts of debris. Check that if you haven't because it could be a problem.
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
The radiators also plug up with tons of tiny pebbles and bits of leaves, you wont be able to see it until you pull it out and hold it up to light. Spend some time flushing ALL of it out, youll see a night and day difference in cooling temps.
Racer
Joined: Jul 2008
Posts: 272
Likes: 0
From: LA
Your temps are normal for the stock set up. I put in a 180 degree thermostat and it runs about 186 at 70 mph. In stop and go trafic it will climb to 210. I found that temps under 190 will stop that pinging under max throttle. Temps under 180 will cut gas milage and cause the car to run too rich. The cooling system was optimized for 200 degrees.
Burning Brakes
Joined: May 2008
Posts: 1,057
Likes: 2
From: Ohio
I've read where those temps are fine. Seems hot to me. 230* for coolant and probably 230* for oil is hot. Synthetic is nice, if you can run it. On our older cars, synthetic can leak out. It has a uniform smaller molecule size. That's why it lubricates better. In addition to that, it can handle the higher temps. Conventional oil cokes around 260*. Synthetic won't breakdown as fast from heat cycles.
Clean the area between the radiator and condenser.
Consider a 180* thermostat.
Consider a lower temp switch to turn the fan on around 210*.
Clean the area between the radiator and condenser.
Consider a 180* thermostat.
Consider a lower temp switch to turn the fan on around 210*.
Thread Starter
Drifting
Joined: Jan 2007
Posts: 1,908
Likes: 3
From: Supreme Soviet Peace-Loving Pipple's Kollektive of Seattle Wa
What a great forum!
Thanks to all who have so kindly responded! You've given me a lot to consider and to check as well. First is to pull the radiator and clean the airways and fins and also flush/backflush too. Clean out airway of the condensor of course too.
Yup! Have definitely started dribbling oil since I went synthetic. Have heard about the smaller molecular structure as the culprit. Picked up front/rear main seals as well as the one-piece pan gasket as I had planned to change timing chain and sprockets (139k miles). Napa had chain and steel sprocket set-made in U.S.A.!!
thanks again for the feedback!
Yup! Have definitely started dribbling oil since I went synthetic. Have heard about the smaller molecular structure as the culprit. Picked up front/rear main seals as well as the one-piece pan gasket as I had planned to change timing chain and sprockets (139k miles). Napa had chain and steel sprocket set-made in U.S.A.!!
thanks again for the feedback!
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Melting Slicks
Joined: Sep 2006
Posts: 3,194
Likes: 27
From: Monroe Twp, NJ
Mine stays at 190 or in the 180s. The cooling fan kicks it at 200+. The previous owner my cousin had a radiator put in that was near $1,000. Whatever it was it keep the car cool. It was a Florida car and he was always nervous about keeping the car cool for performance reasons.