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Old 06-19-2014, 10:53 PM   #1
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Join Date: Jun 2014
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Help.... New RV owner & No power Steering?

Good Evening Everyone...

We just acquired a 1992 Silver Eagle 32' Diesel Pusher Class A motorhome from my father in law. It is based on an OSHKOSH chassis and has a Cummins 5.9B 190 motor in it with an Allison transmission.

Driving it home I noticed that I have NO (ZERO) power steering (Every once in a while the steering gave a little "wow" like a pump kicked in? and I must step on the brakes VERY hard in order for them to really work. (4 wheel disc).

I mentioned this too him and he said it worked fine the last time he was out... BUT... here's the kicker... It's been sitting for 2 years...

I am mechanically inclined, but a little stumped here as it's the first big rig we've owned.

So my questions are as follows:

1. Where would the power steering pump and or resovoir be on this setup?

2. Would the Brake system share the same pump system?

3. Is this a belt driven system? Maybe I am missing a belt? or blew it off ?

4. Any suggestions where I could locate a chassis manual for this rig?

I've tried searching the web, but it appears Silver Eagle only manufactured motorhomes for a couple years... they are big on manufacturing big buss style rigs...

Any help will be greatly appreciated!!!!

We're hoping to take the kids for a campout next week!!! See how it goes!



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Old 06-20-2014, 04:02 AM   #2
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Posts: 4,510
Rear or side radiator?

You have pump that supplies power for steering and brakes and maybe fan if side.

Could be low on fluid or a shuttle valve could be stuck.

Ours is air brake side radiatior and steering overides fan.

In your case brakes maybe overide steering.

Open hood where engine is located and look for tank and check fluids.

Tony & Lori
1989 Country Coach Savannah SE
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Old 06-20-2014, 04:21 AM   #3
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I lost my power steering too, I looked and found that the belt had come loose, it was kinda difficult to reach but I was able to put the belt back on it's pulleys and then tighten them with a wrench and the problem was solved. However, mine has a gas engine in the front, I'm not sure if it's set up the same for a pusher but you might check the belts.
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Old 06-20-2014, 05:55 PM   #4
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I am hoping that befor you "take the kids camping" you have the brakes inspected. After sitting 2 years they will need a good inspection for everything from water in the brake fluid to siezed pistons in the calipers.
Don and Nancy
[2014 40QBH Phaeton, 2015 Buick Enclave, 2yr old sisters Sara n Kaycee, Havanese, Two Segways
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Old 06-20-2014, 07:00 PM   #5
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Thanks for the suggestions...

After further inspection, it's a rear radiator with a reservoir that is shared for Steering and Brakes.

Got it all exposed today from the back, found the reservoir for the Power Steering/Brake Hydroboost system. Reservoir was low on fluid.

Topped up reservoir, checked for leaks, followed the system lines and finding nothing, decided to give er a try down the road... WOW... amazing difference... I have power steering AND proper braking now!!!

Took it back home, re-inspected and found no leaks and everything seems good. Greased and lubed the chassis while I was under there, changed the oil and filter as well. So far so good...

Wheels have been off, 4 Wheel disc's inspected and in good working order, all caliper slides greased and pistons checked for movement. Pads are at 80 to 90 % so very few miles since brake job.

Thank goodness for large tools, heavy duty air jacks and large jackstands!!! turns out it's not that intimidating after all... A whole lot bigger... but mechanically almost the same...

Couple more things to go through and we'll shoot for a short trip down the road to test everything out...

Thanks again for all the suggestions...
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Old 06-21-2014, 05:59 PM   #6
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Be sure to check the DOT date of your tires and their condition. Many threads on tire failures due to the age of the tires even when tread looks good.

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Old 06-21-2014, 07:32 PM   #7
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[QUOTE=B D HOWie;2104759]Be sure to check the DOT date of your tires and their condition. Many threads on tire failures due to the age of the tires even when tread looks good.

I'll second that recommendation.

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2000 LEXUS RX300 FWD 22MPG 4020 LBS

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