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Unread 10-03-2013, 09:13 AM   #1
Ruke400
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1990 YJ Wrangler 
 
Join Date: Jul 2009
Location: NC
Posts: 42
While I have the Radiator off.....

Guys-

I am in the middle of replacing the Radiator on my 4.2. While I have that and the fan shroud off, what else should I work on?

The jeep is not moving anytime soon while I work on a new cj style dash.

Its a 1990 with 150k miles. Water pump? Thermostat? Belts?

Thanks.

-Ruke

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Unread 10-03-2013, 09:29 AM   #2
Que89YJ
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1989 YJ Wrangler 
 
Join Date: Apr 2008
Location: Detroit, Michigan
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Look at the ford taurus electric fan mod, upgrade the alternator to the cs-144, normal maintenance for wear parts like the thermostat, belts, water pump, hoses, etc.

You might want to consider the nutter Bypass, Team Rush mods too.
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Unread 10-03-2013, 09:46 AM   #3
Ruke400
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1990 YJ Wrangler 
 
Join Date: Jul 2009
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Already Nuttered. Put a MC2100 from the ebay guy on last year.

Does the alternator swap work with the radiator in? I may wait until the current alt dies.

-Ruke
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Unread 10-03-2013, 09:52 AM   #4
Old4X
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1990 CJ7 
 
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Check your timing chain for slack. Much over 6 degrees at the crankshaft is time to replace chain and both gears.

The OEM cooling system is near bullet proof, stay with it by using a good radiator, OEM pump, shroud, fan , fan clutch and thermostat.
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Unread 10-03-2013, 09:57 AM   #5
jbolty
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1990 YJ Wrangler 
 
Join Date: Jun 2007
Location: San Diego, CA
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definitely flush the cooling system, including the heater core. Belts, hoses and water pump are all pretty cheap and it's nice to know everything is in good working order.
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Unread 10-03-2013, 09:59 AM   #6
dancytron
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1990 YJ Wrangler 
 
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Location: st. louis
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Upgrade the electrical.

Bigger battery cables. I went with 1 gauge welding cable for the starter and main grounds and 4 gauge for the 8 gauge wire running to the starter relay.

"Big 3 upgrade." This is an upgrade that kids with obnoxious stereos do. Right now, the link between the alternator and the battery is a 8 gauge wire that goes through the starter relay, a fusible link, and then a 10 gauge wire to the alternator. This is a weak point. Bypassing that and grounding the alternator and chassis better are the "Big 3"

Dedicated grounds. Best thing I did. If I had to go completely back to like it was when I bought it except one thing, I'd keep the dedicated grounds. Silly electrical problems just went away and when I do have an electrical problem, I know it isn't the grounds. http://www.jeepforum.com/forum/f8/be...1/#post7724128

Fuse for big 3 upgrade - http://www.donrowe.com/accessories/fuse_anl.html

Replace every hose (vacuum or otherwise) that looks like it was original with the jeep.
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Unread 12-23-2013, 09:17 AM   #7
fishadventure
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1991 YJ Wrangler 
 
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Location: Morrisville, VT
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Quote:
Originally Posted by Ruke400 View Post
...While I have that and the fan shroud off, what else should I work on? The jeep is not moving anytime soon while I work on a new cj style dash....Its a 1990 with 150k miles. Water pump? Thermostat? Belts?
Belts and thermostat are a good idea if they are unknown age or belt looks bad. I wouldn't replace anything else unless they look old/worn/cracked or otherwise 'bad'.

However, I would like to see pics of the CJ dash
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