im have some major cooling probs..can any one help???
07-14-03, 11:36 PM
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im have some major cooling probs..can any one help???
ok..heres the laydown i just got my first rx-7 and its over heating. i have changed the water pump, radiator and the thermostat ...i dont know what to do...and im on a time line...i need it fixed before school starts...ahhhh...please someone help
by the way do any of ya'll know of any good body kits?
by the way do any of ya'll know of any good body kits?
Last edited by phantomfreak; 07-14-03 at 11:47 PM.
07-14-03, 11:46 PM
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What kind of mixture you running in the fluid? Also might think about buying an electric fan to blow some cold air on the radiator. I know a lot of people run about 70-80% water in the coolant who have rx's, helps a lot.
07-15-03, 07:01 AM
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Check the timing (too far advance will over heat).
Make sure there is no air in the system and that it is full.
Check the Fan clutch to make sure it operates properly.
Check around the radiator. Is the foam that fills the gaps around it still there.
Is the water pump belt slipping?
Just some Ideas.
By the way everyone knocks the aftermarket thermostat. I just replaced my thermostat after having the car 9 years. The one I pulled out looked to be aftermarket. If you ask me 9+ years isn't bad. Don't know what brand it was though.
Make sure there is no air in the system and that it is full.
Check the Fan clutch to make sure it operates properly.
Check around the radiator. Is the foam that fills the gaps around it still there.
Is the water pump belt slipping?
Just some Ideas.
By the way everyone knocks the aftermarket thermostat. I just replaced my thermostat after having the car 9 years. The one I pulled out looked to be aftermarket. If you ask me 9+ years isn't bad. Don't know what brand it was though.
07-15-03, 07:04 AM
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Banzai's Coolant SYSTEM rant:
What brand therosatat and waterpump. It is recommended; based on hard earned experience; NOT TO USE AFTERMARKET THERMOSTATS and WATERPUMPS.
now,
A. Have you had a cooling system pressure test done. You need to to see if you have another leak or a blown coolant seal .
B. Is the stock cooling fan functiong properly? Sureshot interjects:
"For step B: The fan should pull really hard up to about 4k when the motor is hot. It should maintain about 4k as the motor revs higher. Sometimes you can get more life from it by bending outward the bi-metal strip on the front of the fan clutch. The cut-in for the series 4 fan clutch is gradual – it pulls some even when cold. If yours slips at 2.5k, that won't cool it.
The fan clutch will sneak up on you after 100,000 miles. It wears out very gradually."
C. Are all the cooling shrouds and underbelly trays intact and installed properly?
D. Are your Radiator and oil cooler fins clean and unobstructed? You don'e have a dead cat stuck in there do you?
E. How old are your hoses, your suction hose could be collapsing.
F. When you replaced the waterpump did you inspect the housing surfaces?
Over time with bad coolant the housing can erode causing a reduction in coolant flow.
G.Belt tension proper?
Also beg/borrow/steal/buy an infrared temp gun and check the temps of the hoses going in and out of the rad.
What brand therosatat and waterpump. It is recommended; based on hard earned experience; NOT TO USE AFTERMARKET THERMOSTATS and WATERPUMPS.
now,
A. Have you had a cooling system pressure test done. You need to to see if you have another leak or a blown coolant seal .
B. Is the stock cooling fan functiong properly? Sureshot interjects:
"For step B: The fan should pull really hard up to about 4k when the motor is hot. It should maintain about 4k as the motor revs higher. Sometimes you can get more life from it by bending outward the bi-metal strip on the front of the fan clutch. The cut-in for the series 4 fan clutch is gradual – it pulls some even when cold. If yours slips at 2.5k, that won't cool it.
The fan clutch will sneak up on you after 100,000 miles. It wears out very gradually."
C. Are all the cooling shrouds and underbelly trays intact and installed properly?
D. Are your Radiator and oil cooler fins clean and unobstructed? You don'e have a dead cat stuck in there do you?
E. How old are your hoses, your suction hose could be collapsing.
F. When you replaced the waterpump did you inspect the housing surfaces?
Over time with bad coolant the housing can erode causing a reduction in coolant flow.
G.Belt tension proper?
Also beg/borrow/steal/buy an infrared temp gun and check the temps of the hoses going in and out of the rad.