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Old 06-25-2011, 04:24 PM   #1
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Question 1976 Minnie Winnie 20RG on a Dodge Chassis

Sure could use some help. I can not find where I fill my water storage tank. Also, any idea if there is an outlet with a GFCI, my plugs on the passenger side are not working and all the fuses are fine. There are no manuals available through Winnebago and I have looked everywhere on-line. I'm new to the RV world, so far I really like it.
Thanks, any info will help.
Retro Mama

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Old 06-27-2011, 06:03 PM   #2
Join Date: Jun 2011
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What a cool old motorhome. I love the old Dodge chassis. They are easy to repair. I don't know where the water fill is but, if you can see the tank you can follow the fill hose. It's gotta be right above it. I'm not sure that there will be a GFCI on a motorhome that old. Make sure there is no power on your rig and follow those wires backwards. You should find your problem.

I had a 1977 Class B. We camped our butts off in that thing and loved every minute of it. One word of caution. Those old Dodges can be a bit cold natured. When starting it cold, especially in winter, don't get in a rush and start revving the engine. Just keep at a reasonably god idle speed for a few minutes till it's warm enough to drive. Avoid funky oil additives. Just keep her serviced right. Some Dodges don't like Dextron/Mercon transmission fluid. They like ATF+4 (or 3 or whatever).

Our old 1977 had a 318ci engine. It had plenty of power and we drove it all over the place never having any issues. My wife has a Dodge van now that has a 360ci engine. Lots of good power but, a gas hog in town. Make sure you have good tires and have fun.

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Old 06-27-2011, 06:42 PM   #3
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The 76 Winnebago Minnie Winne brochure indicates that you have a pressurized fresh water system not a on demand pump.

This means you have a steel tank under one of the bunks or a bench seat. Find the tank and follow the pipes to the outside fill and vent ports. Normally there are access panels under the bench seats or bunks. A pressurized system uses a 12VDC air pump to pressurize the system rather than an on demand water pump. You have to vent the pressure off the system in order to fill the tank. Only information I have ever seen for the pressurized system is in the 74 and earlier Winnebago Service Manual (Section 60-40-01). The manual is available through the store at http://www.classicwinnebagos.com/forum/index.phpe

House parts reference information is available at:
http://www.winnebagoind.com/service/.../76wmw20rg.pdf and

For the Dodge chassis portion you need a MB300 chassis Service Manual.
dodge mb300 | eBay

The are no GFCI circuits unless someone added them. You most likely have a bad connection somewhere. AC is routed through the bins and overhead. Check for a junction box in the rear passenger side closet.

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Old 07-27-2011, 07:49 PM   #4
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I have a 74 minnie and have alot of the manuals let me know if you need any info. My water fill is on the left/ drivers side the tank is on the right, still trying to figure that one out.
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Old 07-27-2011, 11:52 PM   #5
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Thanks so much for the information. I hooked the hose up to the only place that said water and it filled the tank so apparently they both go in the same place.
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