TJ radiator fan upgrade info.......2000-2006 TJ - Page 29 - JeepForum.com

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post #421 of 620 Old 08-05-2011, 09:59 PM
fish4life
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i've only seen my jeep creep past 210 a little bit when running hard up a steep hill. It did so even on steep highway hills at 60mph, so i figured it wasn't my fan. I gave my system a complete flush and new thermostat and it helped somewhat, though it will still creep a little past 210 ocassionaly, 215 perhaps. Not enough to be worried about it. It would probably go back to below 210 if i replace the crap Radiator Barn rad with an O.E.M one.

However, for kicks and giggles, i tried the towel test just now. This is a stock 5 blade metal fan and stock 14 year old fan clutch.



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post #422 of 620 Old 08-06-2011, 06:09 PM
dbbd1
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Quote:
Originally Posted by fish4life View Post
i've only seen my jeep creep past 210 a little bit when running hard up a steep hill. It did so even on steep highway hills at 60mph, so i figured it wasn't my fan. I gave my system a complete flush and new thermostat and it helped somewhat, though it will still creep a little past 210 ocassionaly, 215 perhaps. Not enough to be worried about it. It would probably go back to below 210 if i replace the crap Radiator Barn rad with an O.E.M one.

However, for kicks and giggles, i tried the towel test just now. This is a stock 5 blade metal fan and stock 14 year old fan clutch.
Nice! Thanks for doing that test. I am sticking with stock for now too.

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post #423 of 620 Old 08-06-2011, 06:37 PM Thread Starter
chris142
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Ya your fan and clutch seem to be working well. My stock fan wouldn't do that even after I drilled a hole through the clutch and bolted the clutch solid.
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post #424 of 620 Old 08-06-2011, 06:53 PM
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Quote:
Originally Posted by fish4life View Post
i've only seen my jeep creep past 210 a little bit when running hard up a steep hill. It did so even on steep highway hills at 60mph, so i figured it wasn't my fan. I gave my system a complete flush and new thermostat and it helped somewhat, though it will still creep a little past 210 ocassionaly, 215 perhaps. Not enough to be worried about it. It would probably go back to below 210 if i replace the crap Radiator Barn rad with an O.E.M one.

However, for kicks and giggles, i tried the towel test just now. This is a stock 5 blade metal fan and stock 14 year old fan clutch.

In looking at your pic one thing you might want to check into is sealing the area between the top of the radiator and the grill. You're losing a lot of air flow through that gap that should be passing through the radiator core. Every little bit helps......
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post #425 of 620 Old 08-07-2011, 01:10 AM
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Originally Posted by sduncan View Post
In looking at your pic one thing you might want to check into is sealing the area between the top of the radiator and the grill. You're losing a lot of air flow through that gap that should be passing through the radiator core. Every little bit helps......
the radiator is in exactly the same spot that the original oem one was. I think you are mistaking the effect of the gap between the radiator and fan shroud for the gap between radiator and grille.
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post #426 of 620 Old 08-07-2011, 07:03 PM
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Nope...I am referring to the gap between the front edge of the top radiator tank and the top rear edge of the grill. The shroud and mounting of the radiator itself are not what I am talking about.
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post #427 of 620 Old 08-08-2011, 11:21 PM
fish4life
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Originally Posted by sduncan
Nope...I am referring to the gap between the front edge of the top radiator tank and the top rear edge of the grill. The shroud and mounting of the radiator itself are not what I am talking about.
Well then you are mistaken if you think there is something there worty of attention. The position on the two in relation to each other is the same as every other rad/grille combo I have seen on any other tj ... And nobody has attempted to improve it in any way, neither shall I
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post #428 of 620 Old 08-09-2011, 07:26 AM
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There is a foam seal that is oem that seals the ac condensor and radiator, my after market condensor doesn't set up as high and I have a gap that I filled with foam pipe insulation. It might not make a lot of difference, but mine was sealed from the factory.
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post #429 of 620 Old 08-09-2011, 08:41 AM
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My 05 looks nothing like that.

05 Electric Lime Green LJ with a 4spd Auto, 2.5inch Suspension Lift, OME Shocks, OME Steering Stabilizer, 32inch BFG M/T's on 17inch Moab's using Spidertrax Spacers, UCF Aluminum TC Skid, Novak Cable Shifter, Brown Dog MML, Rokmen 1/2 BL, Banks CAI, Diehard Platinum Marine Battery, JW Speaker 8700 LED Head Lights, Safari Nets, G.E.A.R Overhead Console/G.E.A.R Tailgate Storage, Rugged Ridge XHD Front Bumper, Warn Gas Tank Skid, Mopar Rock Crawler Rear Bumper, Warn XD9000i Winch with Warn Wireless Remote, and a Uniden 880 CB Radio
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post #430 of 620 Old 08-09-2011, 06:55 PM Thread Starter
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Originally Posted by jr03 View Post
There is a foam seal that is oem that seals the ac condensor and radiator, my after market condensor doesn't set up as high and I have a gap that I filled with foam pipe insulation. It might not make a lot of difference, but mine was sealed from the factory.
Yup mine had that also. It's long gone. I should replace it
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post #431 of 620 Old 08-09-2011, 08:08 PM
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post #432 of 620 Old 08-09-2011, 08:30 PM
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Does this fan upgrade work on 2.5L 4-Cylinders?

Beep Beep, who got da keys to the JEEP???
Red Jeep Club #556 - "DA 4-$LANGER"
1997 Flame Red TJ 4-Banger (2.5L) 4.0 TB 62mm Bored w/ Spacer -- 31x10.50 D. Cepek "Crushers" -- 15" Black Rock Crawlers -- AEM DryFlow -- Dynomax Super Turbo Cat-Back -- EBC Brake System -- Rough Country 2.5" Lift w/ Discos -- RC Adj Track Bars -- Currie HD Steering -- Rugged Ridge Diff Covers - DDM 6000K HID
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post #433 of 620 Old 08-09-2011, 08:52 PM
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Quote:
Originally Posted by Hendrix View Post
Just picked up the 86 mustang hd clutch and explorer 9 blade fan to test out. Everything bolts up great on my 97 TJ. Hope it works well.
Do you think it will work on the 2.5L?

Beep Beep, who got da keys to the JEEP???
Red Jeep Club #556 - "DA 4-$LANGER"
1997 Flame Red TJ 4-Banger (2.5L) 4.0 TB 62mm Bored w/ Spacer -- 31x10.50 D. Cepek "Crushers" -- 15" Black Rock Crawlers -- AEM DryFlow -- Dynomax Super Turbo Cat-Back -- EBC Brake System -- Rough Country 2.5" Lift w/ Discos -- RC Adj Track Bars -- Currie HD Steering -- Rugged Ridge Diff Covers - DDM 6000K HID
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post #434 of 620 Old 08-09-2011, 08:54 PM
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92-2737 Early model TJ "Heavy Duty" (no Severe Duty listed)

Will this work on a 2.5L?

Beep Beep, who got da keys to the JEEP???
Red Jeep Club #556 - "DA 4-$LANGER"
1997 Flame Red TJ 4-Banger (2.5L) 4.0 TB 62mm Bored w/ Spacer -- 31x10.50 D. Cepek "Crushers" -- 15" Black Rock Crawlers -- AEM DryFlow -- Dynomax Super Turbo Cat-Back -- EBC Brake System -- Rough Country 2.5" Lift w/ Discos -- RC Adj Track Bars -- Currie HD Steering -- Rugged Ridge Diff Covers - DDM 6000K HID
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post #435 of 620 Old 08-09-2011, 09:14 PM
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Quote:
Originally Posted by chris142 View Post
no. The 4cyl uses a much smaller fan and shroud. The 18inch fan won't fit in the shroud.
The shroud is bigger on a 4cyl.

Beep Beep, who got da keys to the JEEP???
Red Jeep Club #556 - "DA 4-$LANGER"
1997 Flame Red TJ 4-Banger (2.5L) 4.0 TB 62mm Bored w/ Spacer -- 31x10.50 D. Cepek "Crushers" -- 15" Black Rock Crawlers -- AEM DryFlow -- Dynomax Super Turbo Cat-Back -- EBC Brake System -- Rough Country 2.5" Lift w/ Discos -- RC Adj Track Bars -- Currie HD Steering -- Rugged Ridge Diff Covers - DDM 6000K HID
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10 blade , 5 blade , 9 blade , cooling , explorer , fan blade , Fan clutch , ford , upgrade

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