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Old 04-04-2013, 11:09 PM   #1
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1989 29' Excella
1982 31' Airstream 310
Monroe , Georgia
Join Date: Jan 2012
Posts: 5
310 diesel brakes

Just thought I would post a question over about brakes on the 310.I have one that I just started really going over.I got the MoHo about 2 years ago and it has always had a soft brake pedal when braking.I am familiar with the workings of the hydro boost on other GM vehicles that I have restored.I am use to a hard pedal when braking on those.
The brakes have had new pads front and rear,calipers,and hoses.I bled the brakes last week and drove it.The MoHo will stop okay but it would never lock the wheels for sure.This is my first with MoHos and just not sure if it ever had a good hard pedal for braking.
I have thought about replacing the hydra boost and the master cylinder just for safety sake due to it's age.
Power steering is okay so there should be proper pressure for Hydra boost.
Also is the parking brake suppose to hold the camper well or is it just enough to hold?Mine is spun all the way up on handle adjustment and camper still will roll.
MoHo has only 51000 miles
thanks
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Old 04-04-2013, 11:30 PM   #2
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1982 28' Airstream 280
Port Angeles , Washington
Join Date: Aug 2008
Posts: 1,372
Quote:
Originally Posted by turbonut View Post
Just thought I would post a question over about brakes on the 310.I have one that I just started really going over.I got the MoHo about 2 years ago and it has always had a soft brake pedal when braking.I am familiar with the workings of the hydro boost on other GM vehicles that I have restored.I am use to a hard pedal when braking on those.
The brakes have had new pads front and rear,calipers,and hoses.I bled the brakes last week and drove it.The MoHo will stop okay but it would never lock the wheels for sure.This is my first with MoHos and just not sure if it ever had a good hard pedal for braking.
I have thought about replacing the hydra boost and the master cylinder just for safety sake due to it's age.
Power steering is okay so there should be proper pressure for Hydra boost.
Also is the parking brake suppose to hold the camper well or is it just enough to hold?Mine is spun all the way up on handle adjustment and camper still will roll.
MoHo has only 51000 miles
thanks
Welcome to the Forum. This is a quote from the GM P-30 Service Manual

"Customers have expressed concern with their ability to
push the brake pedal to the floor with the vehicle stationary
and the engine running . If the Hydro-Boost brake pedal
is forced to the floor, as can be done, and the motion
stopping function and effectiveness of the brake system
is still considered normal, then the pedal travel action of
the Hydro-Boost brake system is also considered to be
normal . (See Pedal Travel Check in this section of the
manual.)
Figure 6-"

Everybody complains about the pedal feel but it's just what you have to live with.

Pictures of your coach are appreciated by everybody here.
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Old 04-05-2013, 09:50 AM   #3
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1984 31' Airstream310
Honokaa , Hawaii
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The first adjustment for the parking brake is at the drum on the driveline just behind the trans. It has shoes inside, the adjust with a screwdriver via an access hole in the drum. The p30 service manual has the procedure, will post it when I get home this weekend if still needed.
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Old 04-05-2013, 10:33 PM   #4
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1989 29' Excella
1982 31' Airstream 310
Monroe , Georgia
Join Date: Jan 2012
Posts: 5
Wink MOHO Brakes

Thanks for the info on the brake questions.I will monitor the overall braking ability.I will also when I get a chance, spin the adjuster a couple of rounds with a flat tip screw driver for the emergency brake.I take it that I need to jack up a rear wheel to make sure parking brake is not to tight by spinning a wheel.
Thanks again
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Old 04-08-2013, 02:10 AM   #5
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1984 31' Airstream310
Honokaa , Hawaii
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Here's the stuff from the manual:
Attached Files
File Type: pdf parking brake adjustment.pdf (820.2 KB, 37 views)
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