leaking coolant from behind harmonic balancer
#1
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Model: Cherokee(SJ)
leaking coolant from behind harmonic balancer
Bought a 97 Cherokee from my boss took a while to get it running when I did it did wonders but recently my radiator crack put some jb weld just to get me by. After that I have a major leak of coolant from behind the harmonic balancer but i have no idea where to start fixing it or what should I do first
#2
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Look above.....
#3
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Year: 1995
Model: Cherokee(XJ)
Engine: I6 4.0L
x2 on what Cruiser said.
If you weren't aware, a failing water pump will start to leak coolant out the weep hole and that coolant will run south. You can get a pressure testing loaner tool from Autozone and pressurize the system - it will make any external leaks very obvious as to where they're coming from. It could be a simple as tightening up the hose clamp seen in Cruiser's photo.
On a side note, I wouldn't put off replacing the radiator properly. A lot of folks on here have had good luck with the Autozone special cheapos.
If you weren't aware, a failing water pump will start to leak coolant out the weep hole and that coolant will run south. You can get a pressure testing loaner tool from Autozone and pressurize the system - it will make any external leaks very obvious as to where they're coming from. It could be a simple as tightening up the hose clamp seen in Cruiser's photo.
On a side note, I wouldn't put off replacing the radiator properly. A lot of folks on here have had good luck with the Autozone special cheapos.
#5
If it's behind the harmonic balancer it is most likely the water pump weep hole like PAtHenry suggested. I bought one of the spectra premium radiators from advance for my YJ. It has been great. If anything, it cools off too quickly when I park in the winter. I would not mess with JB weld on a radiator on a cherokee (or any car). When coolant goes, bad things happen quickly.
I bought a '98 cherokee with a blown motor. When I pulled it apart to see what happened, the thermostat had rusted shut. the PO had used well water. It overheated and blew a hole in 2 pistons and destroyed the cylinder walls.
A radiator replacement on a cherokee is really simple. Burping the cooling system is a pain. Replacing the water pump at the same time is not much more effort. Change the thermostat while there too.
I bought a '98 cherokee with a blown motor. When I pulled it apart to see what happened, the thermostat had rusted shut. the PO had used well water. It overheated and blew a hole in 2 pistons and destroyed the cylinder walls.
A radiator replacement on a cherokee is really simple. Burping the cooling system is a pain. Replacing the water pump at the same time is not much more effort. Change the thermostat while there too.
#6
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Year: 1998 Classic (I'll get it running soon....) and 02 Grand
Model: Cherokee (XJ)
Engine: 4.0
X2. Do it right. Radiator, water pump, hoses, and thermostat. On the t-stat, spend the extra money and get a Mopar.
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#8
Old fart with a wrench
On the t/stat, I've used Stant Superstats my entire life and never had one fail. Good value from the price. They open gradually so you don't get that rush of cold coolant into a hot motor.
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