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 08-09-2011, 04:18 PM | #1 |
SoIlBoy Winnebago Camper
Join Date: Oct 2009 Posts: 25 | Belt change I have an '05 model 36G, with the Cummins 300 ISB. I have decided to change the serpentine belt, just because. You can't even SEE the belt from underneath, so I assume it all is done from up top. There are 3 access hatches under the bed, and it looks to me that I will need to use the rearmost hatch. To use that hatch do you have to partially take the bed frame apart? And if that is the hatch, do you have fairly good access to to front of the engine? Anyone change the belt on the 36G? |
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| 08-10-2011, 06:21 AM | #2 |
Smitty3509 Winnebago Camper
Join Date: Dec 2010 Location: Ft Worth, TX Posts: 12 | My wife and I changed the belt in our '08 Tour in about an hour. It's definitely a two person job, one working from the top hatch and one wedged below the engine. I would try the access hatch at the rear of your coach first, that's where we could look straight down on to the belt. You need a 1/2 socket bar to move the belt tensioner to loosen the belt, then it's just a matter of working the belt off and over the fan blades. Be sure you note how the belt is routed around the pulleys! I thought I kept my engine pretty clean, but I was covered in grease and grime when done........ We had to remove a bracket and sensor wire at the top of the engine to get the belt off, no big deal, but I found the pins pushed in at the water proof connector. After I put it all back together my engine Temp gauge started fluctuating quite a bit. It use to read half way and never move. I think the oil temp and water temp are in the same gauge and I was only reading oil temp. Now it is reading what I would expect. Watch those pins in that connector. (Mine is a ISL 400 engine) __________________ |
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| 08-10-2011, 08:11 AM | #3 |
indiana journey Winnebago Owner
Join Date: May 2007 Location: Indiana Posts: 64 | We have a 2004 36G winnebago with the 300 ISB Cummins also. I changed the serpentine belt last fall, after the temperature had cooled down. |
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| 08-10-2011, 03:08 PM | #4 |
pine tree Winnebago Owner
Join Date: Dec 2009 Posts: 92 | How often Hi All, How often in terms of miles and/or time do we need to change this serpitine belt? Mine is ten years old with 50K miles on a CAT engine. The place [CAT/Freightliner] I get service has never said a word about the belt. Pine Tree |
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| 08-10-2011, 03:15 PM | #5 |
Gary - K7GLD Winnebago Camper
Join Date: Aug 2009 Posts: 43 | Quote: Originally Posted by pine tree Hi All, How often in terms of miles and/or time do we need to change this serpitine belt? Mine is ten years old with 50K miles on a CAT engine. The place [CAT/Freightliner] I get service has never said a word about the belt. Pine Tree I'd say you were about due - better to put on a new one now in your driveway, than later out along some lonely stretch of road - especially if it takes you 10 hours like the guy further above... __________________ John Day....|'88 Winnebago Super Chief 27ft. Class A Eastern .....|'88 KIT model 240 24 ft. 5er Oregon ......|'02 Dodge/Cummins 2500 Quad Cab |
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| 08-10-2011, 03:30 PM | #6 |
Sammie Winnie-Wise
Join Date: Jun 2006 Location: Southern California Posts: 489 | Quote: Originally Posted by pine tree Hi All, How often in terms of miles and/or time do we need to change this serpitine belt? Mine is ten years old with 50K miles on a CAT engine. The place [CAT/Freightliner] I get service has never said a word about the belt. Pine Tree Pinetree, Do it now! Mine went without any warning at 16000 miles. I had just started my normal early June trip and after only 90 miles from my house, this was the result. Oh well, lesson learned. Sammie __________________ |
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| 08-16-2011, 12:03 AM | #7 |
FIRE UP Winnebago Master
Join Date: Dec 2009 Location: Out there, somewhere Posts: 1,745 | Quote: Originally Posted by indiana journey We have a 2004 36G winnebago with the 300 ISB Cummins also. I changed the serpentine belt last fall, after the temperature had cooled down. I have to applaud this kind of effort. Many of us would be right along with you. Cuts, scrapes, bruises, cussing (sometimes) etc. I've been in that same situation a zillion times. While I've not changed the Serpentine and the v-belt in our newly purchased '04 Itasca Horizon with the 330 CAT, it looks to be a bit of a job. I just removed my right front tire to do a brake inspection and, those lug nuts are a bit of chore. I'll jump in there and do the belts in short order too. Glad you stuck it out. You now know what's involved and you know youre coach better. __________________ |
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| 08-16-2011, 01:20 AM | #8 |
Conquest102 Winnebago Camper Join Date: Jun 2011 Posts: 6 | I agree change the belt at home in the driveway is a lot easier than doing it on the side of the road. I have done it both ways and a cool engine in the driveway was way better than the side of the road with a hot engine and the whole family. __________________ |
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| 08-16-2011, 06:54 PM | #9 |
SoIlBoy Winnebago Camper
Join Date: Oct 2009 Posts: 25 | I finally worked up the nerve and changed the belt today. Took about 1/2 hour to remove the mattress and bed platform. There are 2 hatches in the 36G to remove. Winnebago could have made it 1 big hatch and it would have been better. Found out that I could do all the change from above. I released the tension on the old belt so I could spin the fan to feed the new belt thru, while leaving the old belt in place (just in case). The fan has very close tolerance to the shroud, so it is a little difficult to feed thru. Pulled the old belt out of the way and started putting the new belt into place. I did find it easier to get under the coach to start the belt on the crankshaft pulley, wasted 20 minutes trying from up on top before I wised up. First attempt to route the belt scared me because it appeared the belt was the wrong one and was 6 inches too long, then I routed it the right way and it fit Success!!!! The only tools needed are a screwdriver to remove the bed platform, a 1/2 drive breaker bar for the tensioner and a 3/8 wrench for the engine covers. Took about 3 hours total, I think I could now do it in 2 hours. The scariest part is when you pull the engine covers and look at what you are about to do, very little space to work in. Most of the time I sat on the engine with my feet on the frame. Got dirty. Tomorrow I will wash the engine and clean the radiator. |
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| 08-16-2011, 07:18 PM | #10 |
Sammie Winnie-Wise
Join Date: Jun 2006 Location: Southern California Posts: 489 | Quote: Originally Posted by SoIlBoy I finally worked up the nerve and changed the belt today. Took about 1/2 hour to remove the mattress and bed platform. There are 2 hatches in the 36G to remove. Winnebago could have made it 1 big hatch and it would have been better. Found out that I could do all the change from above. I released the tension on the old belt so I could spin the fan to feed the new belt thru, while leaving the old belt in place (just in case). The fan has very close tolerance to the shroud, so it is a little difficult to feed thru. Pulled the old belt out of the way and started putting the new belt into place. I did find it easier to get under the coach to start the belt on the crankshaft pulley, wasted 20 minutes trying from up on top before I wised up. First attempt to route the belt scared me because it appeared the belt was the wrong one and was 6 inches too long, then I routed it the right way and it fit Success!!!! The only tools needed are a screwdriver to remove the bed platform, a 1/2 drive breaker bar for the tensioner and a 3/8 wrench for the engine covers. Took about 3 hours total, I think I could now do it in 2 hours. The scariest part is when you pull the engine covers and look at what you are about to do, very little space to work in. Most of the time I sat on the engine with my feet on the frame. Got dirty. Tomorrow I will wash the engine and clean the radiator. Did mine about a year ago. Next time I will wash off the engine first. Sammie __________________ |
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| 09-26-2011, 06:08 PM | #11 |
gewilli Itasca Meridian 36G
Join Date: Feb 2011 Location: Chelan, WA Posts: 47 | My buddies 2005 Journey with a c7 just lost his serp. Belt this last weekend along I90, had to be towed. He got it fixed Saturday once he found the right belt and a truck stop mechanic. I am changing mine very soon. Less than 50,000 miles, but like tires, it's that age thing again .... Thanks for the pics, tips and tricks. Garth __________________ |
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