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Old 08-23-2019
VietVetCop VietVetCop is offline
Junior Member
Join Date: Aug 2019
Location: Las Vegas
Posts: 1
Post HELP Compressor Govenor Issues

Hi new owner with a 1991 Wanderlodge BB40 Twin Screw Detroit 8V92 this is a totally different kind of Motorhome we have ever had. And I have never worked on a Bus ever! I'm sure I will have a world of questions overtime and sincerely thank everyone in advance for your experienced contribution. I am looking for some help from those with a 8V92.

My wife and I stopped to have lunch for a couple of hours in the Middle of Nevada about 280 miles from Las Vegas. When returning to the Coach it fired right up but would not register or build any air pressure. Walking around the coach there was no air leaks or hissing. Knowing enough about Big Truck Engines I naturally dived into investigating the issue and started a process of elimination, pulled off the Air Intake Pipe the "Poppit Valves" worked correctly and air sucked into the head as it should indicating the Compressor working. (This test Compressor operation and vacuum) there is a very high probability that the Governor has failed... and here's MY ISSUE
I have been under the coach more times than I can count, I have searched from the bottom and my discovered floor access, I've looked in every compartment and I Cannot find the GovernorHELP[/B][/B]! Yes I have attempted to follow the line but it dips here, joins other clumps of line and it just hasn't happened, I am hoping one of you seasoned experts out there can head this rookie in the right direction... By the way we are still stuck in Middle Nevada. Thanks to All !
Gil Amaral
Las Vegas, NV.
92 Wanderlodge BB40
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Old 08-23-2019
markusfmeyer markusfmeyer is offline
Senior Member
Join Date: Jul 2009
Location: Pennsylvania
Posts: 3,811

Not sure exactly where the governor is hidden, but another item to consider is the dryer cartridge. Had a member with a similar issue at a recent rally, first thought it was the governor but turned out to be a clogged cartridge. Do you have an auxiliary compressor? You can try to build air using that, or buy one and attach it as a temporary message.
Markus Meyer
Phoenixville, PA
1986 PT40 6V92
VB 1570
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Old 08-23-2019
dennis hight dennis hight is offline
Senior Member
Join Date: Aug 2009
Location: mancos co.
Posts: 487

I believe it is mounted inside the curb side frame rail above the rear axles .
Dennis&Debbie Hight 91 wb mancos co.
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Old 08-23-2019
atckip's Avatar
atckip atckip is offline
Senior Member
Join Date: Feb 2010
Location: Brooks
Posts: 3,089

Welcome to the group Gil. Tell us more about your new coach. Has it been sitting..any recent work. If you have an aux pump, can you build air with it. The governor should be mounted where Dennis pointed
Kip Henry
95 WB42 S-60
88 WB40 2010/14
Brooks, GA
Kip Cindy & Cody
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Old 08-24-2019
Randy Dupree's Avatar
Randy Dupree Randy Dupree is offline
Forum owner
Join Date: Dec 2007
Location: Port St Joe,Fl
Posts: 38,652

I suspect the air dryer purge valve,and its sure easier to get to than the air Gov.
That air Gov is not something you want to change in a parking lot.
email me at randy@randydupree.com only.

Randy Dupree
2000 LXI 43
Port St Joe Fl.

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hiding governor, mechanical issue

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