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Old 08-06-2013, 07:29 PM   #1
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Talking Newbe with a 1992 32 'Allegro bay no brakes!

Hello Don't really know what I got Just bought a 1992 Tiffin Allegro Bay 32' P30 Chassis 454 engine. Nothing worked when I got it and it looked camo painted with all the mold. 3 hours of pressure washing and cleaning two new batteries and fuel system cleaning finally got engine running sounds good small exhaust leak, manifold, . Onto onan generator checked oil , ok , gas not getting to carb disconnected fuel line ran external fuel can fired up purs like a kitten,. have to figure out why no gas flow.
1 Main Question What is the best fix for the hydra brake system?
2 Does the onan use the main fuel tank for fuel?
3 Hydraulic pump froze up any ideas. I hope it is just the electric drive motor locked. all jacks in place and move freely.
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Old 08-06-2013, 10:24 PM   #2
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Generator runs off of main fuel tank, so if below 1/4 tank it won't run. The carb is probably gummed up. Exhaust leak on 454 is common because of excessive heat. Good set of headers should work. Can't help with leveling system. Be sure when you are ready to do a complete tune up, all belts and hoses, all fluids, and check code dates on tires. I would also do all roof seams and side seams. Check for leaks or signs inside. Had an 87 Allegro and loved it. Only sold it because we wanted to go smaller and newer.
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Old 08-08-2013, 04:39 PM   #3
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Flush the power steering system and brake system before changing out the hydro. I just put on a new hydro, master cylinder, two rotors and 4 new calipers on my 91 Southwind. The brake system needs to be flushed every two years I believe, someone correct me if I'm wrong on that. Brake fluid attracts water.
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Old 08-08-2013, 09:11 PM   #4
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I think GM's hydro-boost brakes work off the power steering pump for the power brake part, still have a brake fluid reservoir. When you push the brake pedal and see bubbles or fluid movement in the reservoir the master cylinder is bad. This system works differently, and only uses what pressure is needed. You can push the brake pedal to the floor if you continue to push hard enough, doesn't necessarily mean the brakes are not working though.
I agree with the recommendation to have the entire fluid system flushed and new brake fluid installed. If you have disc brakes, quite often the caliper piston will seize in-place when unused for a very long time. Rotors will rust, often resulting in frozen brakes because either or both pistons and rotors are rusted. Rotors may be cleaned up to work, caliper pistons must be replaced when rusted.
Those are my thoughts, and $2 more will buy you a cup of coffee.
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