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87 XJ overheat


 
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el_dubya
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Joined: 20 Sep 2005

PostPosted: Fri Dec 09, 2005 7:03 am    Post subject: 87 XJ overheat Reply with quote

My friend got a dirt cheap 87 XJ with a 4.0L to play in. When he got it it was overheating. That weird pressurized bottle thing was cracked so he replaced it. And he replaced the radiator and put a thermostat in it. Problem is it still overheats. It was snowing last night and we went out to play and it over heated. When it does, that bottle peuks antifreeze all over the place.

He only has one fan on the radiator, and he says there should be 2? I'm not sure the one he has works right either. So my only guess is he needs a new fan, or 2. But he says it will do it just driving down the highway, when there should be enough air flow.

I also thought maybe he had a clog somewhere, but his heater works well so I would guess the water is circulating. Any ideas? I want him to get it fixed so we can trail ride together. Thanks.
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Dub

'98 TJ SE
15x7 ProComp Series 51 Rock Crawler Wheels
31x10.50 General Grabber AT2's
Taurus Fan
Uniden PC68 Elite CB
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ThePhantum
Pissed-Off Admin
Pissed-Off Admin


Joined: 23 Jan 2004
Location: I knew it...I'm surrounded by Assholes!

PostPosted: Fri Dec 09, 2005 9:48 am    Post subject: Reply with quote

The 87's have a closed cooling system, so anytime you lose or drain coolant, you need to bleed the system of all air when you fill it.

This is a pretty good writeup on doing it: http://www.olypen.com/craigh/cooling.htm

Good luck.
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el_dubya
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Joined: 20 Sep 2005

PostPosted: Tue Dec 13, 2005 8:21 am    Post subject: Reply with quote

Thanks, worked like a charm! Had plenty of fun in the snow with it.
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Dub

'98 TJ SE
15x7 ProComp Series 51 Rock Crawler Wheels
31x10.50 General Grabber AT2's
Taurus Fan
Uniden PC68 Elite CB
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