broke college student, cracked radiator. - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum

Join Wrangler Forum Today


Like Tree27Likes
Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 08-19-2019, 09:56 PM
Thread Starter
  #1
Jeeper
 
Join Date: May 2019
Posts: 21
Unhappy broke college student, cracked radiator.

Hey guys,

have had my 2000 4.0L with 150k for about a month and temps started to run dangerously high all of a sudden caused because of a crack in the radiator. the rad seems like it has never been replaced, but while i save the money for a new radiator i'm wondering if i can just jb weld it? i know it's sketchy but the crack is very small and right on top of the radiator about 3-4 inches to the left of the rad cap.

thanks

tbb58 is offline   Quote
Old 08-19-2019, 10:54 PM   #2
Jeeper
 
Gottagofast's Avatar
 
Join Date: May 2017
Posts: 7,385
No way no how... not worth the risk of blowing your engine

__________________
I come in peace.... I mean you no harm
Currently in the stable: .....97 tj 2.5 5 speed stock... 97 tj 4.0 5 speed stock....04 tj 4.0 auto 4" and 33's... 98 tj roller for future build... 94 yj sahara 4.5" RE and 33's... 92 yj sbc 3/4 ton axles and 38's... Cj5,7,yj,xj,ex mud dragster project

TJ dash speakers that actually rock! Kicker sub and amp in center console
Gottagofast is offline   Quote
Old 08-19-2019, 11:30 PM   #3
Supporting Member

5-Year WF Supporting Member
 
Join Date: Feb 2012
Location: L.A.
Posts: 524
I have a radiator you can have for the price of shipping or if you are in so cal, pick up.

It's used, was leak free when removed a few years ago.

Sent from my SM-G973U using Tapatalk
__________________
98 Jeep Wrangler w/ a few mods
NRA Life Member
superduty is offline   Quote
Sponsored Links
Advertisement
 
Old 08-20-2019, 12:45 AM
Thread Starter
  #4
Jeeper
 
Join Date: May 2019
Posts: 21
LOL it's weird though bc im not leaking a huge amount of coolant just steam when it idles.i know it's risky but it's my daily driver and based on how tiny the crack is i think the risk/reward is a fair trade off. also the engine runs hot but not past the red, it just kinda wavers for a bit and then drops to slightly over the middle.
tbb58 is offline   Quote
Old 08-20-2019, 12:49 AM
Thread Starter
  #5
Jeeper
 
Join Date: May 2019
Posts: 21
i appreciate the offer but i live all the way on the east coast so shipping would just not be worth it. the price of a new rad is not terrible, i just have no job right now bc of college so money is going to more important issues..
tbb58 is offline   Quote
Old 08-20-2019, 08:10 AM   #6
Commercial Member

5-Year WF Supporting Member
 
Shark_13's Avatar
 
Join Date: Dec 2012
Location: Idaho
Posts: 6,739
Find a free bike on Craigslist
__________________
One-of-a-kind wood shift knobs for sale

https://www.wranglerforum.com/f37/han...s-1175625.html
Shark_13 is offline   Quote
Old 08-20-2019, 09:23 AM   #7
Jeeper
 
tworley's Avatar
 
Join Date: Jun 2014
Location: Morrison, CO
Posts: 4,523
The JB weld will only work until it doesnt.



I know one guy who patched his with some fabric and a jb weld like material. I think it lasted him just a couple of days is all.
__________________
97' 4.0L - AX-15 - 4.56 D30/Rubi44 - Currie 4" SL -1.25" BL - 1" MML - 35s - XRC Rear Bumper/Carrier - JB SSYE - MC F/R CAs - MC F/R TBs - Currie Currectlync - Currie AR - Savvy GTS - Savvy UA - Savvy Shift Cable - ARB RD100/116 - RG&A 4340 Axle Shafts - Currie Mini Skids - Superwinch LP8500 - Poison Spyder Rocker Knockers - Poison Spyder Defender XCs - BMB Brakes - Fox 12" Resi 2.0 Shocks -
Colorado Jeep
tworley is offline   Quote
Old 08-20-2019, 10:43 AM   #8
Jeeper
 
jjvw's Avatar
 
Join Date: Oct 2013
Location: Denver, CO
Posts: 4,589
When mine split, I used a patch made of a couple tubes of the flexible epoxy for plastic mixed with some short fuzz cut from a nylon ratchet strap. Sand and clean the split and the surrounding area. Slather the epoxy on thick and wide. Let it cure for as long as you can before running the engine. Mine sat for at least 8 hours in the hot sun.

I ran this for a full week of daily driving until the new radiator arrived. The patch area looked fine and likely had plenty of life left in it. But during my daily inspections, I finally noticed all the other little weeping cracks scattered throughout the radiator. The old radiator was still a ticking time bomb until the next weak spot failed. It's surprising how much the radiator expands once fully heated.

The overheating may be another problem in the cooling system and may be the thing that makes the patch or the next weak spot fail sooner rather than later.
__________________
2003 Rubicon
jjvw is offline   Quote
Old 08-20-2019, 10:53 AM   #9
Jeeper
 
jjvw's Avatar
 
Join Date: Oct 2013
Location: Denver, CO
Posts: 4,589
Click image for larger version

Name:	20170615_110856_1566316414767.jpg
Views:	24
Size:	156.2 KB
ID:	4170521
__________________
2003 Rubicon
jjvw is offline   Quote
Old 08-20-2019, 11:03 AM   #10
Jeeper
 
screwlose's Avatar
 
Join Date: Jun 2017
Posts: 616
The cracked radiator may be because of the overheating issue, not the other way around.
I'd pull the water pump and the heat exchanger in the cab and do a good cleaning before just replacing a radiator.
Unless its rusted or something punctured it radiators don't usually just crack open on their own.
So do a bit of prep work before the radiator replacement to help save yourself a ton more money later down the line.
screwlose is offline   Quote
Old 08-20-2019, 11:13 AM   #11
Jeeper
 
ztman's Avatar
 
Join Date: Nov 2012
Location: central pa mountains
Posts: 2,252
I was a poor college kid with a Jeep once. As much as I liked jeeps, I had to get rid of it. Got a Corolla until I had a few dollars in my pocket and able to afford the Jeep I wanted

Once the nickle and dimes start, time to part company.
__________________
I don't mind spending money, I mind wasting money.

Sold Jeeps -68 CJ, 73 CJ, 80 CJ, 88 YJ, 95 YJ, 11 JK

Current Jeep 16 JKUWW
ztman is offline   Quote
Old 08-20-2019, 02:44 PM   #12
Jeeper
 
Gottagofast's Avatar
 
Join Date: May 2017
Posts: 7,385
Quote:
Originally Posted by tbb58 View Post
LOL it's weird though bc im not leaking a huge amount of coolant just steam when it idles.i know it's risky but it's my daily driver and based on how tiny the crack is i think the risk/reward is a fair trade off. also the engine runs hot but not past the red, it just kinda wavers for a bit and then drops to slightly over the middle.
If you already have your mind made up, then why ask?

It's your money.... gamble a $3000 engine repair against a $120 radiator and let the dice roll.
__________________
I come in peace.... I mean you no harm
Currently in the stable: .....97 tj 2.5 5 speed stock... 97 tj 4.0 5 speed stock....04 tj 4.0 auto 4" and 33's... 98 tj roller for future build... 94 yj sahara 4.5" RE and 33's... 92 yj sbc 3/4 ton axles and 38's... Cj5,7,yj,xj,ex mud dragster project

TJ dash speakers that actually rock! Kicker sub and amp in center console
Gottagofast is offline   Quote
Old 08-20-2019, 09:04 PM
Thread Starter
  #13
Jeeper
 
Join Date: May 2019
Posts: 21
thanks screw, did not think about that. it may also have been caused by the fact that it had little to no coolant left due to a leak in one of the hoses near the bottom, causing it to overheat. i also opened the rad cap and found it covered in muck.

which do you guys think is the most likely culprit? low coolant
old rad?
Attached Thumbnails
Click image for larger version

Name:	Screen Shot 2019-08-20 at 10.02.51 PM.jpg
Views:	25
Size:	135.8 KB
ID:	4170737  
tbb58 is offline   Quote
Old 08-20-2019, 09:08 PM
Thread Starter
  #14
Jeeper
 
Join Date: May 2019
Posts: 21
Quote:
Originally Posted by Gottagofast View Post


If you already have your mind made up, then why ask?

It's your money.... gamble a $3000 engine repair against a $120 radiator and let the dice roll.
its not that i don't like the idea of a new rad, i literally don't have the money to buy it.

does anyone know if an upgraded aluminum rad is better than the stock one on tj's? i know from some friends that it's not a good idea to "upgrade" to racing rads since they can preform worse than stock, but if there is a non racing upgrade for my rad, it wouldn't be a bad idea.
tbb58 is offline   Quote
Old 08-20-2019, 09:13 PM
Thread Starter
  #15
Jeeper
 
Join Date: May 2019
Posts: 21
Quote:
Originally Posted by jjvw View Post
When mine split, I used a patch made of a couple tubes of the flexible epoxy for plastic mixed with some short fuzz cut from a nylon ratchet strap. Sand and clean the split and the surrounding area. Slather the epoxy on thick and wide. Let it cure for as long as you can before running the engine. Mine sat for at least 8 hours in the hot sun.

I ran this for a full week of daily driving until the new radiator arrived. The patch area looked fine and likely had plenty of life left in it. But during my daily inspections, I finally noticed all the other little weeping cracks scattered throughout the radiator. The old radiator was still a ticking time bomb until the next weak spot failed. It's surprising how much the radiator expands once fully heated.

The overheating may be another problem in the cooling system and may be the thing that makes the patch or the next weak spot fail sooner rather than later.
ended up buying the permatex kit specific for plastic rads/fuel tanks and im letting it set overnight. also bought some K-seal since i've heard good things. will keep u updated on the results for future reference.
tbb58 is offline   Quote
Old 08-21-2019, 12:04 AM   #16
Commercial Member

5-Year WF Supporting Member
 
Shark_13's Avatar
 
Join Date: Dec 2012
Location: Idaho
Posts: 6,739
Good luck!
__________________
One-of-a-kind wood shift knobs for sale

https://www.wranglerforum.com/f37/han...s-1175625.html
Shark_13 is offline   Quote
Old 08-21-2019, 08:22 AM   #17
Jeeper
 
jjvw's Avatar
 
Join Date: Oct 2013
Location: Denver, CO
Posts: 4,589
A stock Mopar radiator is the best option. Your's lasted as long as it did, which was a pretty long time.

I am not aware of an upgrade over stock, unless you are calling anything different than stock an "upgrade".
ChuffHugginLoognat likes this.
__________________
2003 Rubicon
jjvw is offline   Quote
Old 08-21-2019, 09:43 AM   #18
Jeeper
 
Join Date: Oct 2011
Posts: 3,928
Quote:
Originally Posted by screwlose View Post
Unless its rusted or something punctured it radiators don't usually just crack open on their own.
I have seen plenty of split plastic radiator tanks. And not a single one of them was rusted.
tangofox007 is offline   Quote
Old 08-21-2019, 09:51 AM   #19
Jeeper
 
tworley's Avatar
 
Join Date: Jun 2014
Location: Morrison, CO
Posts: 4,523
Gross. Looks like someone mixed coolant in the past and did a poor job maintaining it. Agree with above, stick with stock and use G05 coolant (after flushing of course)
__________________
97' 4.0L - AX-15 - 4.56 D30/Rubi44 - Currie 4" SL -1.25" BL - 1" MML - 35s - XRC Rear Bumper/Carrier - JB SSYE - MC F/R CAs - MC F/R TBs - Currie Currectlync - Currie AR - Savvy GTS - Savvy UA - Savvy Shift Cable - ARB RD100/116 - RG&A 4340 Axle Shafts - Currie Mini Skids - Superwinch LP8500 - Poison Spyder Rocker Knockers - Poison Spyder Defender XCs - BMB Brakes - Fox 12" Resi 2.0 Shocks -
Colorado Jeep
tworley is offline   Quote
Old 08-21-2019, 11:34 AM   #20
Jeeper
 
screwlose's Avatar
 
Join Date: Jun 2017
Posts: 616
Quote:
Originally Posted by tangofox007 View Post
I have seen plenty of split plastic radiator tanks. And not a single one of them was rusted.

The plastic tank is not a radiator, thats the overflow tank, completely different subject
screwlose is offline   Quote
Old 08-21-2019, 01:23 PM   #21
Jeeper
 
jjvw's Avatar
 
Join Date: Oct 2013
Location: Denver, CO
Posts: 4,589
Quote:
Originally Posted by screwlose View Post
The plastic tank is not a radiator, thats the overflow tank, completely different subject
The top and bottom of the Mopar radiator is capped with plastic "tanks". Except for one guy who sees them split often, they seem to last about 120k miles and they do a very good job of keeping the engine within its operating temps.
__________________
2003 Rubicon
jjvw is offline   Quote
Old 08-21-2019, 02:02 PM   #22
bp1
Supporting Member

5-Year WF Supporting Member
 
Join Date: Apr 2019
Posts: 424
Quote:
Originally Posted by screwlose View Post
The plastic tank is not a radiator, thats the overflow tank, completely different subject
My friend in highschool had 2 of them in his car. One was the radiator overflow and the other was Vodka that ran through a hose under the dash and toggle switch to control it. I DO NOT recommend doing this. The 70's were a much different time.

As far as JB Weld no. Many have tried. Too much pressure my friend.
bp1 is offline   Quote
Old 08-21-2019, 04:35 PM   #23
Jeeper
 
TheBoogieman's Avatar
 
Join Date: Jul 2016
Location: CharlottesHELL, Va
Posts: 2,176
Quote:
Originally Posted by tbb58 View Post
thanks screw, did not think about that. it may also have been caused by the fact that it had little to no coolant left due to a leak in one of the hoses near the bottom, causing it to overheat. i also opened the rad cap and found it covered in muck.

which do you guys think is the most likely culprit? low coolant
old rad?
What the F! Looks like someone took a dump in your radiator. I'd flush the whole system when you replace the radiator. If you're broke, you can buy a cheapo for $78 at Radiator Express. I put one in the GF's Jeep KJ and never had any problems with it.
Attached Thumbnails
Click image for larger version

Name:	DW (2017_11_20 00_38_12 UTC).jpg
Views:	14
Size:	15.6 KB
ID:	4170921  
__________________
03' Rubicon/Zone 4.25" combo lift/Rancho 9000XL shocks/5.13 gears-35" MTZs/LoD bumpers/Black Magic brakes
99' XJ under construction/ 5" BDS lift/ HP30-8.25/ 33" DC MTs. (JEEP #18).
TheBoogieman is online now   Quote
Old 08-21-2019, 06:58 PM   #24
Commercial Member

5-Year WF Supporting Member
 
Shark_13's Avatar
 
Join Date: Dec 2012
Location: Idaho
Posts: 6,739
Find a local u pull it auto parts junkyard, that is the cheapest way to keep a vehicle running.
bp1 likes this.
__________________
One-of-a-kind wood shift knobs for sale

https://www.wranglerforum.com/f37/han...s-1175625.html
Shark_13 is offline   Quote
Old 08-21-2019, 08:30 PM   #25
Jeeper
 
Join Date: Oct 2011
Posts: 3,928
Quote:
Originally Posted by screwlose View Post
The plastic tank is not a radiator, thats the overflow tank, completely different subject
But that isn't the plastic tank that I am talking about. There is a difference between a radiator tank and an overflow bottle.

Quote:
Originally Posted by jjvw View Post
Except for one guy who sees them split often, they seem to last about 120k miles...
I was referring to radiators generally, the the TJ specifically. By far, the most common reason that I have replaced radiators is that the tanks split or crack. For vertical flow, it's usually the top tank; for horizontal flow it tends to be the cold side where the oil cooler lines attach.
tangofox007 is offline   Quote
Old 08-21-2019, 10:33 PM
Thread Starter
  #26
Jeeper
 
Join Date: May 2019
Posts: 21
boggieman your not wrong. after replacing the rad (and water pump for good measure) i will most definitely flush the cooling system and add the correct coolant. 1aauto.com has a rad for half the price of the stock with a lim. lifetime warranty and good reviews, so i'm going with their rad and the water pump has a limited lifetime warranty at advance auto.

I have not attempted to start the car yet bc the fender flares i ordered a month ago finally came in so i spent my time installing/ stalling(figuratively). tomorrow i will definitely start it and give you guys another update.
tbb58 is offline   Quote
Old 08-22-2019, 07:14 AM   #27
Jeeper
 
Gottagofast's Avatar
 
Join Date: May 2017
Posts: 7,385
Your jeep dies a little every time you call it a car....
Shark_13 and Cameraman like this.
__________________
I come in peace.... I mean you no harm
Currently in the stable: .....97 tj 2.5 5 speed stock... 97 tj 4.0 5 speed stock....04 tj 4.0 auto 4" and 33's... 98 tj roller for future build... 94 yj sahara 4.5" RE and 33's... 92 yj sbc 3/4 ton axles and 38's... Cj5,7,yj,xj,ex mud dragster project

TJ dash speakers that actually rock! Kicker sub and amp in center console
Gottagofast is offline   Quote
Old 08-22-2019, 08:04 AM   #28
Moderator

WF Lifetime Member
WF Supporting Member
::WF Moderator::
 
Sinister6's Avatar
 
Join Date: Jan 2013
Location: Colorado Springs
Posts: 9,567
Quote:
Originally Posted by tbb58 View Post
boggieman your not wrong. after replacing the rad (and water pump for good measure) i will most definitely flush the cooling system and add the correct coolant. 1aauto.com has a rad for half the price of the stock with a lim. lifetime warranty and good reviews, so i'm going with their rad and the water pump has a limited lifetime warranty at advance auto.

I have not attempted to start the car yet bc the fender flares i ordered a month ago finally came in so i spent my time installing/ stalling(figuratively). tomorrow i will definitely start it and give you guys another update.
You flush your cooling system BEFORE NOT AFTER the new radiator! Use the old radiator to do the flush then install the new radiator! Why would you contaminate your new radiator with all the crap in your system???
Gold Miner likes this.
__________________
John
The Wolf is not concerned with the opinion of sheep.
MY BUILD: :
https://www.wranglerforum.com/f322/s...ad-235526.html
Sinister6 is offline   Quote
Old 08-22-2019, 09:36 PM
Thread Starter
  #29
Jeeper
 
Join Date: May 2019
Posts: 21
started her up today and she idled for about 15 minutes before bursting again. got a 25% off discount at advance so i'm getting the rad, water pump and thermostat there along with new hoses. gonna do it myself since youtube made it seem like a breeze. I WILL NOT ACCEPT FAILURE!!
tbb58 is offline   Quote
Old 08-23-2019, 12:06 AM   #30
Jeeper
 
ChuffHugginLoognat's Avatar
 
Join Date: Mar 2016
Location: Back in St. Louis
Posts: 1,521
Looking at the gunk in your radiator...most of my cars before I moved to the USA looked exactly like that. Going back to the late 80s and after. God, one of them was full of oil. Seems the dopey bastard that I bought it from added engine oil to the coolant. Guess he wasn't mechanically minded. Took me a couple of hours to flush it.

__________________
Why would I pay a pro to do something, when I can screw it up just as bad, for less?

2018 JKU Golden Eagle. M/T. Picked up 7.8.19
2018 JKUR white, M/T. Picked up 5.25.18. Sold Feb 19 big mistake.
2016 JKUWW Blue manual. Picked up 5.24.16. Sold 10.2.17
ChuffHugginLoognat is offline   Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off






All times are GMT -5. The time now is 05:27 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.1
User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC