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Unread 01-02-2010, 11:41 AM   #1
macg1777
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Should 85 Jeep CJ 7 have a coolant overflow?

I recently purchased this CJ 7 with straight 6 and was wondering if this should have a coolant overflow reservoir as I do not see one under the hood. Thanks

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Unread 01-02-2010, 12:06 PM   #2
John Strenk
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yes it should and it should be on the rear of the driver side fender. Next to the washer fluid bottle
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Unread 01-02-2010, 12:40 PM   #3
macg1777
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Thanks... I guess that is something else that I need to do.
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Unread 01-02-2010, 02:13 PM   #4
wellmax
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mine had one but leaked so i took it off and just run hose down side of radiator as old machines did years ago, seams to work ok. But I check fluid often, at least twice a year and add as necessary, am sure if i had a recovery tank I would never have to add any fluid.

While working on radiator i would install a new 14psi cap, having a radiator cap in good working order makes a difference as a weak cap will let fluid out when pressure builds up.
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Unread 01-02-2010, 02:20 PM   #5
keith460
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My 84' with a 258 didn't come with one from the factory, only had a drain hose that ran down along the side of the radiator and emptied onto the driveway for all your household pets to lap up. I'll be adding one when the body gets back onto the frame though.
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Unread 01-02-2010, 03:35 PM   #6
wellmax
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keith,

got me to thinking maybe my 84 did not have a coolant expansion tank, I knew I took off the windshield washer tank because it leaked. That maybe that was the tank I was thinking about.

So I went to the barn and checked, yes mine had a coolant tank and it is still down at the barn.

Looks like this one.
Expansion Tank - Auto Parts Warehouse Replacement

Someday I may order a replacement coolant tank, but I use my jeep mostly on the farm, it hardly ever gets to go to town.
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Unread 01-02-2010, 04:53 PM   #7
Bubba Ray
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My 84 has one on the drivers side fender.
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Unread 01-02-2010, 09:27 PM   #8
trillobite
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My 85 CJ7 (2.5) had no coolant overflow, just the hose draped over the side of the radiator. It has one now, however, a cleaned-out gas tank from a snowblower, with vented lid.

My washer reservoir leaked, also. The washer reservoir from a mid-80's Nissan Pathfinder fits the spot above the ignition module, almost too perfectly. Hey, it's what I had at hand.
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Unread 01-02-2010, 10:20 PM   #9
JCJ
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Quote:
Originally Posted by trillobite View Post

My washer reservoir leaked, also. The washer reservoir from a mid-80's Nissan Pathfinder fits the spot above the ignition module, almost too perfectly. Hey, it's what I had at hand.
You could have been an engineer with AMC,


Although I am a stickler for OEM with most things, I absolutely love finding stuff from other makes that fits and or functions better than stock. I feel sorry for whoever ends up with with my crap, I'm not leaving the decoder ring.


My 85 had one at some point, but was removed by the PO. Replacing it was one of the first things I did to it.

Keep in mind that the rad caps are different for expansion and non expansion systems.
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Unread 01-02-2010, 10:37 PM   #10
poppatello
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My jeep didn't come with one either...
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Unread 01-03-2010, 01:03 AM   #11
trillobite
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Quote:
Originally Posted by JCJ View Post
Keep in mind that the rad caps are different for expansion and non expansion systems.
Well, crap, what's the difference? Pressure rating?
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Unread 01-03-2010, 01:10 AM   #12
JCJ
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Quote:
Originally Posted by trillobite View Post
Well, crap, what's the difference? Pressure rating?

No, the cap for the expansion set up has a seal that contacts the top flange of the rad neck, the non recovery style will only have the "gasket".

.

Not sure if this picture will link or not..
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Unread 01-03-2010, 02:25 AM   #13
kyle1228
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Mine's a 78, & it didn't, hah. Had to put one in. Took me about 5 minutes.
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Unread 01-03-2010, 03:21 AM   #14
Viencent
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lol this tread made me go look at the new jeep, doesnt have one, added to the list of item to move over from my old jeep
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Unread 01-03-2010, 08:39 AM   #15
trillobite
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Quote:
Originally Posted by JCJ View Post
No, the cap for the expansion set up has a seal that contacts the top flange of the rad neck, the non recovery style will only have the "gasket".

.

Not sure if this picture will link or not..
I've got the right one, then. Maybe mine was supposed to have a tank, and someone put in a older radiator. It wouldn't surprise me.
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