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Old 08-20-2018, 12:36 PM   #1
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Cooling System Hoses - areas to check

On the Barrancas del Cobre aka Copper Canyon trip earlier this year I had an issue where the top radiator hose got to close the fan. The blades cut a notch in the hose and it started leaking.



I built a plug out of layers of rescue tape and wrapped the area with more rescue tape.



The fix held till I got home and replaced the hose with a new one.

A couple of weeks ago I pulled in the driveway after getting gas and smelled coolant. I looked under the van and it was raining coolant. Put a couple of buckets under the van to collect it. After it stopped leaking I drained the rest. Got everything dried off and found that one of the hoses to the oil cooler had come in contact with the pulley on the bottom right of the engine.



My 2002 service manual showed a part number for the oil cooler hoses. Unfortunately no one had them. The only way to get them was to purchase a complete new hose setup, under a different part number, from the dealer, $105.00. This is a photo of the old hose assembly. The new one looks the same only cleaner.



Here is what I think happened. The hose that goes to the coolant reservoir has a plastic clip that is suppose to hold it in place in the fan shroud. At some time in the past that clip pulled out allowing the entire hose assembly to drop pushing the oiler cooler hose into the pulley. With the clip in place the hose are close but not touching the pulley.



Am going to add some tie wraps to the help support the weight of the hoses incase the clip pops out again. The good news is that I now have all new cooling hoses in the van.
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Old 08-21-2018, 08:14 AM   #2
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Cooling System Hoses - areas to check

I thought about replacing that big “octopus” hose when I had everything apart to do my harmonic balancer and waterpump last year. I did the upper hose but not that lower one. Still regret not doing it, but at the the time I was rushed and it looked like a hassle to do. How much work was it?
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Old 08-21-2018, 08:58 AM   #3
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I just did mine as well, but used a $45 Gates unit from RockAuto with success. The install is fairly simple with the proper spring clamp compression tool. I replaced all the engine connections with Constant Torque clamps so I don't have to carry the special spring tool in the spares box.

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Old 08-21-2018, 09:08 AM   #4
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It was actually pretty easy. On my rig the radiator, coolant tank, and oil cooler hoses had stainless steel band clamps on the ends that just unscrew. The factory spring clamps do not need to be removed. There is also a clamp that holds the two oil cooler hoses to the body that is a bit difficult to get to, it is a long reach from the top. The hose assembly just lifts out with some tugging and pulling. The hardest part was getting the large hose at the engine to pull free. It was stuck on. Finely got it loose with a pick tool.
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Old 08-21-2018, 10:11 AM   #5
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Having learned the hard way about proper hose and wire routing preventing bad events I'm sure we've all endured has become a top priority when I'm doing something on a vehicle these days. Its not always the easiest or least expensive way but the thought breaking down due what could be an easily preventable leak or short motivates me highly.

I keep a few feet of heater hose, clamps and hose plugs just in case something were to leak. I had one of the factory quick disconnect heater core connectors break (mostly my fault) and without a few repair items I'd have been stranded along side the freeway on a Sunday afternoon. It was naturally frustrating since I was just a few miles from home but close enough to Speedway gas station where repairs were made, the coolant refilled with tap water and on my way. (The coolant was later refreshed and tested to the typical -20*F freezing point.)

Glad everyone in this thread didn't deal with too much crap but I'm impressed with the creativity of getting back on the road!
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Old 08-21-2018, 12:10 PM   #6
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Quote:
Originally Posted by larrie View Post
I built a plug out of layers of rescue tape and wrapped the area with more rescue tape...

The fix held till I got home and replaced the hose with a new one.
Ive seen reference to this "rescue tape" on several different threads now, but your account (with supporting pic's) impresses the-hell-out-of-me...now see it as invaluable addition to my arsenal of gotta-haves. Ordered two rolls.
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Old 08-21-2018, 04:38 PM   #7
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Great repair with the Rescue tape, I would never have thought to make a plug, despite carrying a roll on board.
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Old 08-21-2018, 06:22 PM   #8
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Rescue tape only adhears to itself when stretched. To make the plug I cut a bunch of one inch long pieces. Then stretched the firs and second pieces so they would bond. Then added the third piece and stretched the three pieces. Then four on up adding one piece at a time and stretching each time. Once it was thick enough to fill the gap top to bottom I trimmed and contoured it with scissors till it fit the gouge. Then wrapped the hose with more tape. The patch held for about 4,500 miles.
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Old 08-21-2018, 06:59 PM   #9
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larrie; Certainly a "MacGyver" move, & adding the Pic's definitely helps put the magnitude of the issue in perspective. Its this kind of stuff that makes reading through different threads so interesting - It was great of you to share
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Old 08-21-2018, 07:47 PM   #10
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Speaking of MacGyver, here's a tool I picked up years ago at a gun show. It's a great tool to make your own temporary or permanent clamps (single use clamps).



https://clamptitetools.com/



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