| Rear Suspension level [message #260440] |
Fri, 29 August 2014 09:48  |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
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Senior Member |
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Just a minor comment. Took a short highway trip and half way through noticed the Powerlevel was still on full raise. (I forgot the reset after getting out of the barn). I put it to travel but did not notice any difference in handling or control. I was under the impression there would be some noticeable change.
Any comments?
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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| Re: [GMCnet] Rear Suspension level [message #260445 is a reply to message #260440] |
Fri, 29 August 2014 10:21  |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Senior Member |
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Steve,
That would only depend if you actually had the coach in the fully raised position. Just because it was doesn’t mean it was. I can tell you from MY PERSONAL EXPERIENCE that my coach was a more flighty with the rear height that was higher than correct ride height position. The front steering geometry changes when the rear is higher than the correct ride height. A short trip may not be a good indicator, but when your out on the road doing 2400 miles it can be very noticeable. When I finally got the ride height set correctly on the stretch set correctly it drove considerably and noticeably better. This last trip to Tucson was great.
JR Wright
GMC Great Laker MHC
GMC Eastern States
GMCMHI
78 GMC Buskirk 30’ Stretch
1975 GMC Avion (Under Reconstruction)
Michigan
On Aug 29, 2014, at 10:48 AM, Steve Southworth wrote:
> Just a minor comment. Took a short highway trip and half way through noticed the Powerlevel was still on full raise. (I forgot the reset after
> getting out of the barn). I put it to travel but did not notice any difference in handling or control. I was under the impression there would be
> some noticeable change.
>
> Any comments?
> --
> Steve Southworth
> 1974 Glacier TZE064V100150 (for workin on)
> 1975 Transmode TZE365V100394 (parts & spares)
> Palmyra WI
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: [GMCnet] Rear Suspension level [message #260448 is a reply to message #260445] |
Fri, 29 August 2014 10:51 |
Jim Galbavy
Messages: 1443
Registered: August 2007
Karma: 7
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Senior Member |
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JR is right. First of all is your front end height set right. Then what are your TRAVEL &
RAISE settings and is the system actually cycling thru the settings up and down. It sometimes
takes a few minutes for the system to go from one setting height to another. In town or up to
about 35-45 mph RAISE will feel ok, especially turning corners. At highway speeds in RAISE it
will feel a little squirrelly and the coach will want to hunt all over your lane. TRAVEL will
drop the rear raising the relationship of the front to the rear. Check your height levels
against the settings in the maint. manual. One problem is if you drive it out of wack and get
used to the feelings, that will feel normal to you. I found that out recently with my brakes.
They felt fine to me because I had adjusted to them. In the end I only had front brakes.
jim galbavy
'73 x-CL ANNIE
Lake Mary, FL
[Updated on: Fri, 29 August 2014 10:51] Report message to a moderator |
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| Re: Rear Suspension level [message #260461 is a reply to message #260440] |
Fri, 29 August 2014 12:51 |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
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Senior Member |
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Thanks for all the comments. It was in full raise, valves on raise, 125psi on gauge. When on full raise and switching to travel it takes approx 5 minutes to bleed down to travel level. No need to have the key on as it is powerlevel. It works as long as there is pressure in the tank. The trip was only 40 miles with 20 in raise and 20 in travel.
What I wanted to know was what to look for and your answers gave me what to look for.
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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| Re: [GMCnet] Rear Suspension level [message #260474 is a reply to message #260449] |
Fri, 29 August 2014 16:58 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Jim,
Steve has a PowerLevel System so at highway speeds the pump would inflate the bags to the pressure switch setting.
Double Trouble has an OEM system with all new lines and JR's valves, a manifold on each side. The solid state pressure switch you
installed shuts the pump off at 140 psi and normally the bags run around 85 - 90 psi when in Travel. Both the front and rear ride
height are spot on.
Regards,
Rob M.
The Pedantic Mechanic
USAussie - Downunder
USA '75 Avion - Double Trouble TZE365V100426
AUS '75 Avion - The Blue Streak TZE365V100428
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Jim Bounds
Sent: Friday, August 29, 2014 10:57 AM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Rear Suspension level
The system works only when the key is on. When you were "at the barn" it
may be a silly question but was the coach running when you flipped it to
"travel"?
Jim Bounds
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On Fri, Aug 29, 2014 at 11:51 AM, Jim Galbavy wrote:
> JR is right. First of all is your front end height set right. Then what
> are your TRAVEL &
> RAISE settings and is the system actually cycling thru the settings up and
> down. It sometimes
> takes a few minutes for the system to go from one setting height to
> another. In town or up to
> about 35-45 mph RAISE will feel ok, especially turning corners. At highway
> speeds in RAISE it
> will feel a little squirrelly and the coach will want to hunt all over
> your lane. TRAVEL will
> drop the rear raising the relationship of the front to the rear. Check
> your height levels
> against the settings in the maint. manual. One problem is id you drive it
> out of wack and get
> used to the feelings, that will feel normal to you. I found that out
> recently with my brakes.
> They felt fine to me because I had adjusted to them. In the end I only
> had front brakes.
>
> jim galbavy
> '73 x-CL ANNIE
> Lake Mary, FL
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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