Hello gentlemen. I own a 2008 KW T660 with integrated 144 inch sleeper and the blue coolant lines that run just about everywhere need to be replaced. I've patched a couple holes recently. The blue lines are, of course, in the engine, but also run the entire length of the sleeper back to the hot water heat exchanger for the sleeper. My question is: have any of you done this? How much heater hose should I buy? My initial thoughts were start with 50 ft and buy an additional 50 feet as I need? I'm planning on doing the work myself (this girl gets her hands dirty!) Thanks for any suggestions gentlemen.
144 inch sleeper blu4 heater hose replacement
Discussion in 'Ask An Owner Operator' started by SophiaWYO, Nov 22, 2020.
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I have on my Volvo. It's not biggie. Just get good quality clamps from a dealer
Rideandrepair Thanks this. -
No, but at some stage I’ll need to.
Tedious job, I would over wrap anywhere the brackets are, and any rub points. You’ll have to dig out the insulation where it comes up into the hot water heater and reseal.
Consider replacing the hot water unit while you’re at it.Rideandrepair and Tug Toy Thank this. -
Thats silicone line comes in a roll, lowes has stainless clamps
Rideandrepair and GreenPete359 Thank this. -
I did this recently on mine after I blew one of the hoses back to my APU right in the middle of I40 in Charlotte. It wasn't a fun night. I was able to cap the system, refill the engine side with water and get to my destination.
I just replaced with high quality heater hose but did have to buy like 40' of it. I figured if it happened once I better replace every inch of it.
After the fix I added some 6" sections of aluminum tubing and clamps to my tool box. If I ever have a blowout like that again I can patch it and roll on, at least if I have enough coolant/water on board.
This is a messy job but not awful.Rideandrepair Thanks this. -
My worry is why would you have holes in the lines in the first place?
Are they chafing or just too old?
a good quality hose is what you need, Goodyear makes a hose that I use, hy-miler.Rideandrepair, 86scotty and Tug Toy Thank this. -
That is one interesting looking sleeper. Who built it?
Rideandrepair and Tug Toy Thank this. -
I recently replaced all of the heater hoses in my truck along with the bunk heater hose. I used the blue silicone hose because I see it being used alot and figured it is the latest and greatest thing and last longer. If I had to do it over again I would go back to rubber heater hose. The silicone doesn't seem to seal good at the connections for me no matter what clamps I use and there is nothing I hate more than the smell of coolant. After digging into it a bit I find others with the same problem as me. Just my experience with it.
86scotty and Rideandrepair Thank this. -
That silicone line is crap IMO. Could never get it to seal either. I prefer the Goodyear blue Hi-Miler hose myself.
Derailed and Rideandrepair Thank this. -
I've replumbed several of my school buses with silicone hoses. When the bus dissolves there will be nothing but blue hoses sitting on the ground. Have to use the double wrap spring loaded clamps. Once a year I tweak all the clamps. The blue hi miler hose is good as well. A little less temperamental..
Any hose made with EPDM rubber is miles ahead of cheap hose.Rideandrepair and AModelCat Thank this.
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