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Old 01-17-2011, 08:32 AM   #1
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serpentine belt replacement

I have a 1995 Winnebago Luxor on a Oshkosh chassis wit a 300 cummins.Does anyone know if radiator swings out to access front of engine.


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Old 01-17-2011, 10:48 AM   #2
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Welcome Texas Jim to irv2.
You want it to easy, most front engine fan belt replacements required long skinney arms that I have had, but you maybe in luck we'll wait and see.
Your rear engine Luxor may be different. Nice coach by the way enjoy and safe travels.
Enjoy the forums and do post often.

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Old 01-17-2011, 06:23 PM   #3
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Does it have a CAC behind it?
Or between the engine and radiator?

They fixed that problem with the side radiator models.
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Old 01-18-2011, 07:21 AM   #4
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What the heck is a CAC?? I guess I'm a dummy.Looks like the radiator may swing out after a lot of stuff is taken off including the rear bumper.That's my question is it made to swing out??????

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Old 01-18-2011, 08:07 AM   #5
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Jim, I don't know your chassis but would be surprised if the radiator swings out.

The Charge Air Cooler (CAC) is typically the first layer in the "sandwich" that includes the radiator and is closest to the fan. It's purpose is to cool the air somewhat between the output of the turbocharger and the intake on the engine. Because it can be pressurized to 28lbs by the turbo, it is important to keep all of the joints in the CAC tight. Flexing them would not be a good thing. You can trace your CAC piping starting at the turbo.

Belt replacement on my Cummins 5.9 (ISB) is a lot less daunting that it initially looked. The biggest problem was the A/C compressor belt which at least must be loosened and removed from the compressor pulley. On mine the serpentine belt is closer to the engine block. I worked from the top to loosen and remove the A/C belt from the A/C pulley.

The most important thing to have before attempting a serpentine belt replacement is an exact diagram of the belt's path. I've had more than one person contact me for a copy of my diagram when then failed to make their own first. Trust me, you won't remember.

On mine, I needed a 3/8" adapter to allow me to use my long handle breaker bar in the belt tensioner. I could reach this from underneath. I put the breaker bar and adapter into the tensioner, used one hand to shove it hard and the other hand to flip the belt off the back of the tensioner. If you properly position everything, it takes less than 10 seconds. With a long breaker bar and proper leverage, it isn't that hard to do.

With A/C belt out of the way and the serpentine belt off the back of the tensioner, it only takes flipping that belt a couple of times to make it fall off all the pulleys but the fan. The belt is more than long enough to flip over the fan blade but it does taking reaching up pretty high to do it.

Putting the new belt on is just the reverse: flip the belt over the fan, use the diagram to route the belt around all of the pulleys except the tensioner and then use the breaker bar and free hand to take loosen the tensioner and put the belt on the back of it. I've had to try this 2-3 times before I get it.

Yes, it is a fairly tight space between the engine and the front surface of the CAC but my Ford Econoline van was much worse. I'll put sepentine belts on the Cummins all day long before I want to tackle the one on the Ford.
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Old 01-18-2011, 04:22 PM   #6
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Thanks for your reply! When it gets a little warmer I will take another look see.I think I will get hold of Winnebago and see if they can help if not it may be a job for Mr. Goodwrench HA!

Thanks again

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