Should 85 Jeep CJ 7 have a coolant overflow? - Page 2 - JeepForum.com

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post #16 of 19 Old 01-03-2010, 09:08 AM
nitor
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1985 CJ7 
 
Join Date: Dec 2008
Location: Morrow, OH
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My '85 doesn't have one, but the engine was replaced by the PO and they probably left it off. I'll get one when it warms up in the spring.


Thanks,

Jim

1985 CJ7
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post #17 of 19 Old 01-03-2010, 09:44 AM
IdahoJeeper
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1995 ZJ 
 
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Location: Pocatello, Idaho
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Replacement - Expansion Tank - Auto Parts Warehouse

should be a link to the correct replacement expansion tank for an '84.

'95 ZJ Laredo, 4.0L, Auto, 225K, Forest Grn
'98 ZJ Laredo, 4.0L, Auto, 210K, White
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post #18 of 19 Old 01-03-2010, 02:11 PM
Twistedper
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1979 CJ7 
 
Join Date: Jul 2009
Location: Wisconsin
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Of course the 79 didn't have one but I happed to have a tank from a Dodge Avenger so I made a bracket on the fender and hooked up the hose and now I have a tank.

79 CJ 7, 258 I6 TR, T 150, Dana 20, Dana 30, AMC 20 and 31" Uniroyal A/T Tires
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post #19 of 19 Old 01-03-2010, 02:34 PM
86cj74.2L
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2004 WJ 
 
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Location: Stouchsburg, PA
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The cap to use with an expansion tank (vented cap) has a small button in the center of the gasket portion.

That button is loose fitting until hot coolant causes it to pull tight agianst the gasket. That is how it vents the air/ excess coolant from thermal expansion back to the tank....When it cools down and the coolant shrinks in volume it draws some of the coolant from the tank back into the rad through that button.
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