| [GMCnet] Replacing air bag system [message #248846] |
Tue, 29 April 2014 19:55  |
glwgmc
Messages: 1014
Registered: June 2004
Karma: 10
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Many posters have quested after a way to measure and/or adjust air bag pressure for even minute changes in ride height. The idea of simply setting the air bag pressure that results in proper ride height for the most common case and then, if you want to, compensating for the very unusual case has not received much traction. I am fine with my systems the way they are, but for those interested, Wixey makes a whole range of precise height measuring instruments, some with remote read outs. Look for those designed around routers mounted in tables and those for planers. It would be very easy to mount these to the existing ride height controllers and then run the remote read out up to the dash. That would allow you to set the air pressure in your bags to produce the exact ride height for whatever weight you happen to have in the coach at the moment and zero the instrument. Now you can see even fraction of a millimeter changes in ride height from the drivers seat and make whatev
er compensations you wish. The whole thing would be less than $150 (WR525 Remote router readout is $70 each for example) , take less than three hours to do and you would be able to keep your coach as close as you wish to the exact ride height you want. You can set the read out to be in imperial (fractions of an inch) or metric and can zero anywhere within the range.
Here is the link to the Wixey site:
http://www.wixey.com/
Jerry
Jerry Work
The Dovetail Joint
Fine furniture designed and hand crafted in the 1907 former Masonic Temple building in historic Kerby, OR
Visitors always welcome!
glwork@mac.com
http://jerrywork.com
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> Dang if only there was some sort of way to automatically adjust the
> pressure based on ride height.....
++++++++++++++++
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Jerry & Sharon Work
78 Royale
Kerby, OR
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| Re: [GMCnet] Replacing air bag system [message #248849 is a reply to message #248846] |
Tue, 29 April 2014 20:21  |
Keith V
Messages: 2337
Registered: March 2008
Location: Mounds View,MN
Karma: 0
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Senior Member |
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I don't see those working.
Interfacing them to anything else will be a trick, and they would last about a week on the road.
Mid 2000 year caddys and buicks have nice analog sensors that are extremely accurate.
There are also aftermarket versions by dakota digital and others.
Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
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| Re: [GMCnet] Replacing air bag system [message #248867 is a reply to message #248846] |
Wed, 30 April 2014 02:40 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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| glwgmc wrote on Tue, 29 April 2014 19:55 |
Many posters have quested after a way to measure and/or adjust air bag pressure for even minute changes in ride height. The idea of simply setting the air bag pressure that results in proper ride height for the most common case and then, if you want to, compensating for the very unusual case has not received much traction. I am fine with my systems the way they are, but for those interested, Wixey makes a whole range of precise height measuring instruments, some with remote read outs. Look for those designed around routers mounted in tables and those for planers. It would be very easy to mount these to the existing ride height controllers and then run the remote read out up to the dash. That would allow you to set the air pressure in your bags to produce the exact ride height for whatever weight you happen to have in the coach at the moment and zero the instrument. Now you can see even fraction of a millimeter changes in ride height from the drivers seat and make whatev
er compensations you wish. The whole thing would be less than $150 (WR525 Remote router readout is $70 each for example) , take less than three hours to do and you would be able to keep your coach as close as you wish to the exact ride height you want. You can set the read out to be in imperial (fractions of an inch) or metric and can zero anywhere within the range.
Here is the link to the Wixey site:
http://www.wixey.com/
Jerry
Jerry Work
The Dovetail Joint
Fine furniture designed and hand crafted in the 1907 former Masonic Temple building in historic Kerby, OR
Visitors always welcome!
glwork@mac.com
http://jerrywork.com
++++++++++++++++
> Dang if only there was some sort of way to automatically adjust the
> pressure based on ride height.....
++++++++++++++++
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I fail to understand the problem you attempting to fix. Aren't the normal GM level sensors close enough? Mine sense less than 200 hundred pounds of loading change and are accurate within 3/8ths of an inch. What more is needed?
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] Replacing air bag system [message #248873 is a reply to message #248846] |
Wed, 30 April 2014 09:18 |
Francois
Messages: 161
Registered: October 2012
Location: Southern California
Karma: 0
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A lot of guys are sensitive about the original, automatic leveling system. They are so even though they hear the compressors go on briefly and only once or twice on long trips.
I have disconnected the auto leveling stuff, and replaced it with pressure gauges, left and right. No more blind hope for me. A quick glance at the gauges and I know instantly what is going on.This, by the way, is similar to how truckers manage their airbags- with gauges from the driver's seat. I spend a few seconds here and there and don't have to wonder if all is operating properly in that system.
Each compressor sends air first to a McMaster-Carr three way W, sending air to 1. The airbag, 2. forward to the gauge, and 3. the skinner valve for deflation.
The level of comfort I have with this system easily surpasses the doubt and wondering inherent in the original system.
Just my opinion
[Updated on: Wed, 30 April 2014 09:19] Report message to a moderator |
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| Re: [GMCnet] Replacing air bag system [message #248928 is a reply to message #248881] |
Thu, 01 May 2014 00:07 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Yes mine is that way. No gages. Everything is automatic and I do not have to watch or worry about anything. KISS system My Olds Toronado is that way also.
Can you imagine GM installing an air pressure gage or two and saying that you have to watch this thing while driving and every time that you add or subtract passengers or cargo you need to add or remove pressure. GM would have had negative reviews in every auto rag out there. I can hear the salesman now "Do not worry about it. Over time you will learn how to use it. Trust me you will like it".
Maybe we should move the spark advance back to the column for driver control rather than make it automatic.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] Replacing air bag system [message #248947 is a reply to message #248928] |
Thu, 01 May 2014 15:02 |
Francois
Messages: 161
Registered: October 2012
Location: Southern California
Karma: 0
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Senior Member |
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Sure, that's a concern,and watching any gauge at 50 mph will never be wise, but the best time to inflate or deflate with gauges is 1, before you leave, 2. at stops and traffic lights and 3. when you arrive.
My coach came with wiring issues when I bought it, working one day and not the next, and making me nuts.That was a distraction by itself. I needed to rewire and simplify the system. Using a system like long haul truckers use seemed a credible alternative.
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