Author Topic: AIR PSI GOVERNOR HELP  (Read 1885 times)

Offline Jay52999

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AIR PSI GOVERNOR HELP
« on: November 10, 2020, 04:27:13 PM »
Hello everybody I am new to this 41 0 4 I am learning is fast as I can I can't get air pressure to stabilise it just keeps building and building Hmm sure it's the way the governor is plumbed anybody could help me out I would appreciate it

Offline bronson

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Re: AIR PSI GOVERNOR HELP
« Reply #1 on: November 10, 2020, 04:45:04 PM »
Should cut in at 90 and cut out at 125. No idea how yours is plumbed but a new governor is only about $20. I would try that
Gary Bronson
1984-MCI-9
Mount Orab Ohio

Offline bronson

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Re: AIR PSI GOVERNOR HELP
« Reply #2 on: November 10, 2020, 04:47:55 PM »
They come already adjusted.
Gary Bronson
1984-MCI-9
Mount Orab Ohio

Offline Jay52999

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Re: AIR PSI GOVERNOR HELP
« Reply #3 on: November 10, 2020, 04:50:56 PM »
Its new but it never cuts out

Offline dtcerrato

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Re: AIR PSI GOVERNOR HELP
« Reply #4 on: November 10, 2020, 05:15:16 PM »
Hello everybody I am new to this 41 0 4 I am learning is fast as I can I can't get air pressure to stabilise it just keeps building and building Hmm sure it's the way the governor is plumbed anybody could help me out I would appreciate it
Sounds like the compressor unloader isn't operating properly. If your governor is new a operating properly its telling the compressor to unload buts its not. You may be able to open the cover to the unloader and watch its function. On You Tube the bus grease monkey has a video of doing just that - check it out!
Dan & Sandy
North Central Florida
PD4104-129 since 1979
Toads: 2009 Jeep GC Limited 4X4 5.7L Hemi
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Offline luvrbus

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Re: AIR PSI GOVERNOR HELP
« Reply #5 on: November 10, 2020, 05:48:53 PM »
Have you tried to adjust it ?,when you remove the cap the adjustment inside screws down to lower the pressure,very few governors come pre adjusted 
Life is short drink the good wine first

Offline richard5933

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Re: AIR PSI GOVERNOR HELP
« Reply #6 on: November 10, 2020, 06:10:17 PM »
Have you confirmed that the signal line is sending air from the pressure side of the system back to the governor? It needs to know that the pressure has been reached. I drove a semi this summer where the line had come loose, and the governor never knew that pressure had been reached so it kept building till the safety blew.
Richard
1974 GMC P8M4108a-125 Custom Coach "Land Cruiser" (Sold)
1964 GM PD4106-2412 (Former Bus)
1994 Airstream Excella 25-ft w/ 1999 Suburban 2500
Located in beautiful Wisconsin

Offline Jim Eh.

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Re: AIR PSI GOVERNOR HELP
« Reply #7 on: November 16, 2020, 07:41:39 AM »
For the minimal cost of a replacement, just replace it. The two lines you need to connect are connected to the correct ports but "may" be crossed. Can't tell from the pictures where your lines go.
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