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Unread 03-11-2013, 09:33 AM   #1
Tom4369
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1983 CJ7 
 
Join Date: Mar 2013
Location: Tuckerton, NJ
Posts: 9
Bleeding a Radiator

I have a 1983 Jeep CJ7 with a 258 six. I just put a new radiator in it along with a new water pump and T Stat. When it heats up I get a loud banging noise coming from the coolant system. I've been told to bleed it with the cap off but this does not seem to work. Anyone know the proper way to bleed the Rad. or is there a different problem?

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Unread 03-11-2013, 09:35 AM   #2
sherlocktk
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1984 CJ7 
 
Join Date: Aug 2009
Location: Lake Forest, CA
Posts: 318
I usually pull off the heater hose that plugs into the thermostat housing then fill up the coolant until it comes out the top. This way the system is "pre birped" and should not have any significant air locked up in the system.
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Unread 03-11-2013, 09:40 AM   #3
Tom4369
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1983 CJ7 
 
Join Date: Mar 2013
Location: Tuckerton, NJ
Posts: 9
Thanks for the info, I'll give it a try
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Unread 03-11-2013, 09:43 AM   #4
LumpyGrits
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1985 CJ7 
 
Join Date: Jul 2010
Location: The Mojave Desert Palmdale Ca. U.S.A.
Posts: 4,485
First, confirm your WP is turning the correct rotation for your engine. IF your Jeep uses a serpintine belt, the WP is a reverse-rotation WP.
Also make sure the T'stat is facing the correct way.
Open the heater control valve also while run'n the engine.
You have air trapped.
Did you replace the cap??
LG
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Unread 03-11-2013, 10:02 AM   #5
Tom4369
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1983 CJ7 
 
Join Date: Mar 2013
Location: Tuckerton, NJ
Posts: 9
I checked the Stat, it's in correctly, and I ordered the pump for V belt application. Is there a way to confirm or ID the correct pump after installation. I'd hate to have to pull the pump to check it.

T
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Unread 03-11-2013, 10:32 AM   #6
LumpyGrits
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1985 CJ7 
 
Join Date: Jul 2010
Location: The Mojave Desert Palmdale Ca. U.S.A.
Posts: 4,485
You should have done the 'compare', BEFORE the install.
Take your old pump to the parts house you got the new one from, have'm pull the PN you bought. Then do a side-by-side to compare.
LG
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