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Old 09-04-2013, 05:36 PM   #1
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Heat from Diesel pusher and Toad

What effect does the heat generated at the rear radiator of a diesel pusher have on the Toad. Does all that hot air going through the radiator and engine of the toad cause problems short or long term. Thanks

2003 Forest River Cardinal Platinum 37' 5th Wheel
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Old 09-04-2013, 05:54 PM   #2
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It's certainly not a very nice environment back there, but after 50,000 miles of towing, I've not noticed a single indication that the heat is an issue at all.

Now, stone chips, road debris, etc is a different matter.


Rick, Nancy, Peanut & Lola our Westie Dogs & Bailey the Sheltie.

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Old 09-04-2013, 05:56 PM   #3
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Towed for 4 years. No heat, stone, or debris damage.
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Old 09-04-2013, 07:59 PM   #4
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Towed over 40,000 miles, no damage whatsoever. The only thing I've noted on my walk arounds with the IR Thermometer is the left front tire on the toad runs hotter than the right because of the coach exhaust - but not enough to be an issue.
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Old 09-04-2013, 08:11 PM   #5
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Yup!! I agree with the above post. But my heat is on my RH side as is my exhaust pipe.
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Old 09-04-2013, 09:27 PM   #6
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RV cooling air is lower temperature than what exits the Toad's radiator........
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Old 09-04-2013, 09:44 PM   #7
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Toad heat

My kids get really hot in the toad when I lock them inside, but the Cummins engine is loud so I can't hear them....just kidding.

Towed a Toad over 75000 mi and no heat affects I can tell. Sometimes the towbar pins and chains are too hot to handle without gloves when I roll into parking after a long hot day on the road.
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Old 09-05-2013, 03:55 PM   #8
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Originally Posted by adonh View Post
What effect does the heat generated at the rear radiator of a diesel pusher have on the Toad. Does all that hot air going through the radiator and engine of the toad cause problems short or long term. Thanks
Well Sir, to answer your question, I was a bit concerned too when I set our '04 Itasca Horizon 36GD with the 330 CAT and rear radiator, with our Honda Goldwing GL1800 hanging about 2' from the grill at about chest height. It was on a motorcycle lift/carrier that road very close to the back of the coach. During the first few miles of the trip, I stopped once in a while to feel the plastic, rubber and metal parts of the bike. While seriously "warm", they were not too hot to touch. There is also the seat too. That was of major concern. Well, again, warm, but, not in any form of danger of damage.

Well, that was the "cool" part of the travels for that trip. On the Baker grade, on the way to Vegas on CA I-15N, the engine climbed to 213 and a notification was displayed on the dash that I was approaching the heat threshold. So, I was approaching the Hallorin Summit Rd off ramp. I pulled off there and, let the monster cool down some. The outside temperature was 104. So, naturally I was really concerned about the bike and all it's components. I walked around back while the engine was in a cool down stage and felt all the components. Yep, outstandingly hot. EVERYTHING

But, no damage. No melting of any portion of the "Tupperware" plastics which, make up about 75% of what's seen on the bike. The seat cover was really pliable but, that was about it.

So, to answer your question, yep, there's heat back there but, based on my first hand, VERY CLOSE UP experience, it's not intense enough to cause any harm. And, a toad is at least twice as far from the exiting warm/hot air as our Goldwing was. So, that would cut down on the intensity of the heat as it approached the front of the toad.
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Old 09-05-2013, 04:18 PM   #9
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Should not be a problem ... no worse than tailgating in traffic.

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Old 09-05-2013, 04:32 PM   #10
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Thanks for the responses

Thanks everyone for the responses. Its always comforting to get feedback you can depend on from the iRV2 forum members.
2003 Forest River Cardinal Platinum 37' 5th Wheel
1976 31' Airstream
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Old 09-05-2013, 04:39 PM   #11
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Had a problem with mine. Before I bought my TPMS I lost my front tires on my toad. If one goes and you don't know it only takes a minute to lose the other. I noticed my diesel exhaust was facing aft toward the toad. So I bought two tires and a TPMS and found the temps of the left front toad tire was about 20 degrees hotter than the right. So I adjusted the exhaust to point straight down to solve my problem. Now the left runs a little hotter but not like before.

So make sure your exhaust does not point aft.

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diesel, toad

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