Overheating and waterworks
#1
Junior Member
Thread Starter
Overheating and waterworks
hello rx7 friends!
Newbie here trying to diagnose an overheating issue...
Was driving and felt a pop, further down the road the buzzer started, eventually the dash showed that the engine was overheating and after I opened the hood the engine was steaming and there was blue-ish green liquid everywhere. especially the rear-right side of the engine bay.
Think it's a thermostat or water pump issue?
Newbie here trying to diagnose an overheating issue...
Was driving and felt a pop, further down the road the buzzer started, eventually the dash showed that the engine was overheating and after I opened the hood the engine was steaming and there was blue-ish green liquid everywhere. especially the rear-right side of the engine bay.
Think it's a thermostat or water pump issue?
#4
Junior Member
Thread Starter
Testing
So…
1. Coolant res is bone dry
2. no pressure in top hose leading from radiator
Radiator hoses look okay
EDIT: I'm thinking it's a Heater Core hose on the driver's side...
1. Coolant res is bone dry
2. no pressure in top hose leading from radiator
Radiator hoses look okay
EDIT: I'm thinking it's a Heater Core hose on the driver's side...
Last edited by NAFCVERT; 08-23-22 at 02:53 PM.
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Akagis_white_comet (08-24-22)
#5
Have RX-7, will restore
iTrader: (91)
Likely the coolant hose directly under the oil filter pedestal. Filling the cooling system with water is a good idea if you do not have a cooling system pressure tester. When you replace the leaking hose, you will want to use a cooling system pressure tester to pressurize the system to cap pressure and ensure you did not destroy a coolant seal. Very easy to do if the engine is overheated.
The following users liked this post:
Akagis_white_comet (08-24-22)
#6
Junior Member
Thread Starter
fixed
Likely the coolant hose directly under the oil filter pedestal. Filling the cooling system with water is a good idea if you do not have a cooling system pressure tester. When you replace the leaking hose, you will want to use a cooling system pressure tester to pressurize the system to cap pressure and ensure you did not destroy a coolant seal. Very easy to do if the engine is overheated.
I've attached some 3/4 tubing and clamps as a temporary fix while I wait for a more permanent fix (silicone shaped tubing).
Thank you!!!
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