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w
Former Member
Send PMsand springs, OK - USA
Joined: 5/15/2007
Posts: 97
Vette(s): 1978 white w/blue interior it has 80-82 front & rear clips on it
guys, i need a little assistance. my '78 seems to run a little warm. temp gauge goes up to about 200 while i am driving it, even on the interstate. now, this car has 80-82 front and rear bumpers and also the hood. there are no holes in the hood for ventilation. do i need to purchase a new hood for it or ???????
i am so confused
thanks
karen
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g
Lifetime Member
Send PMIrving, TX - USA
Joined: 8/21/2004
Posts: 4286
Vette(s): #1 -1969 Corvette Coupe Riverside Gold, black interior,MN,A/C,350/350,PS,PB,window cranks.
#2 -2000 C5, black/black, 6 sp, Bose system & lots of buttons.
Is that "in traffic temp" or what? 
What temp were you getting previously? Need more info. 
What temp were you getting previously? Need more info. 
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MICK - C3VR Lifetime Member #113
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Free Member
Send PMFrederick, MD - USA
Joined: 9/8/2003
Posts: 3398
Vette(s): 1969 convertible L71 427/435 4-speed black interior
200 degrees is about normal. When I had my '78 it would stay anywhere between 190-210 degrees.
Just to make sure you don't have a problem, make sure the belts are tight, the hoses are good, the coolant level is at the proper level and the proper ratio of water to coolant, the radiator cap is good and the system holds pressure.
It wouldn't hurt to add a bottle of Water Wetter to the system as well.
Just to make sure you don't have a problem, make sure the belts are tight, the hoses are good, the coolant level is at the proper level and the proper ratio of water to coolant, the radiator cap is good and the system holds pressure.
It wouldn't hurt to add a bottle of Water Wetter to the system as well.
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w
Former Member
Send PMsand springs, OK - USA
Joined: 5/15/2007
Posts: 97
Vette(s): 1978 white w/blue interior it has 80-82 front & rear clips on it
that temp is in traffic or on the interstate. since i have had the car, it will get up to that temp as i drive it
karen
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w
Former Member
Send PMsand springs, OK - USA
Joined: 5/15/2007
Posts: 97
Vette(s): 1978 white w/blue interior it has 80-82 front & rear clips on it
ok, cool what is water wetter? also, if i sit in traffic or a drive thru, the car
wants to die on me
karen
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Free Member
Send PMFrederick, MD - USA
Joined: 9/8/2003
Posts: 3398
Vette(s): 1969 convertible L71 427/435 4-speed black interior
Water Wetter is a coolant additive you can buy at Pep Boys, Auto Zone, Advance Auto, etc. It chemically coats the metals in the system to transfer heat faster to the coolant.
Is your problem recent...like since the weather has been so hot and humid? If so, your car may be suffering from vapor lock and fuel percolation, boiling off before it gets down into the carburetor. Since you're saying it occurs when sitting, there's little airflow going through the radiator.
If it's vapor lock or percolation, I'm not sure of what your answer may be. Maybe someone else here can be of more help on that.
Is your problem recent...like since the weather has been so hot and humid? If so, your car may be suffering from vapor lock and fuel percolation, boiling off before it gets down into the carburetor. Since you're saying it occurs when sitting, there's little airflow going through the radiator.
If it's vapor lock or percolation, I'm not sure of what your answer may be. Maybe someone else here can be of more help on that.
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w
Former Member
Send PMsand springs, OK - USA
Joined: 5/15/2007
Posts: 97
Vette(s): 1978 white w/blue interior it has 80-82 front & rear clips on it
ok, thank you very much for the info. i will purchase some of that. why would they produce a hood with no ventilation? sounds kind of silly.
karen
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g
Lifetime Member
Send PMIrving, TX - USA
Joined: 8/21/2004
Posts: 4286
Vette(s): #1 -1969 Corvette Coupe Riverside Gold, black interior,MN,A/C,350/350,PS,PB,window cranks.
#2 -2000 C5, black/black, 6 sp, Bose system & lots of buttons.
Gunslinger's right. 200 is fine, heck it's darn good in traffic! That's what mine runs in traffic, but I've never had an overheating issue with it. I just wondered if there were temp changes. Your car gets enough air through the air filter if it's hooked up correctly. You don't need to put holes in your hood.
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MICK - C3VR Lifetime Member #113
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w
Former Member
Send PMsand springs, OK - USA
Joined: 5/15/2007
Posts: 97
Vette(s): 1978 white w/blue interior it has 80-82 front & rear clips on it
it is an aftermarket air cleaner. i do not have the original. will that make a
difference???
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B
Mine was running a high temperature until I replaced the heads. Also, adding an electric fan to pull some outside air into the radiator will help when sitting in traffic and not getting the airflo .
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in Forum: C3 HVAC, Fuel, Emissions, and Exhaust
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