90 SP Air system -- Buzzy's Question and Answer Forum

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Subject: 90 SP Air system

Author:
Donald McHenry

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Date Posted: 04/ 11/ 08, 9:10am

Bought a 90SP from a previous owner last spring. No books except a water stained owner's manual. It's parked in our stone driveway and won't air-up. Hard to get under and search for problem. We need a contact that can help us find out how the air system is laid out on this model.

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Replies:

[> Subject: Re: 90 SP Air system
Author: ernie ekberg [ Edit \| View ]	Date Posted: 04/ 12/ 08, 6:41am Donald, have you flipped the suspension dump switches? Also- if you hear air excaping when the coach first starts up, then you might have an air governor that is faulty. Ernie- 83PT40 in Montana [ Post a Reply to This Message ]

[> [> Subject: Re: 90 SP Air system
Author: Don [ Edit \| View ]	Date Posted: 04/ 12/ 08, 8:29pm Thanks will attempt. I will get back to you with results Don [ Post a Reply to This Message ]

[> Subject: Re: 90 SP Air system

Author:
Robert Glover
[ Edit | View ]

Date Posted: 04/ 12/ 08, 9:52am

The easiest way to locate any leaks is to do the following...

Turn your engine off so you can HEAR any leaks.

Connect a good shop air compressor to the port in the rear engine compartment. In my 91 SP36, the port is located on the right side, right next to the power steering container.

With your shop air compressor running, does your coach air up? If not, listen for leaks. If the coach DOES air up, the problem is probably your engine compressor or governor.

Hopefully, it is a minor leak somewhere that is easily corrected.

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[> [> Subject: Re: 90 SP Air system
Author: Don [ Edit \| View ]	Date Posted: 04/ 12/ 08, 8:32pm Thanks Rober will attempt these and let you know how I made out. Thanks again Don [ Post a Reply to This Message ]

[> [> Subject: Re: 90 SP Air system
Author: Don McHenry [ Edit \| View ]	Date Posted: 04/ 13/ 08, 7:26am You're helping 2 Dons! The other guy said thanks and so do we. Will try your suggestions. [ Post a Reply to This Message ]

[> [> Subject: Re: 90 SP Air system
Author: Don McHenry [ Edit \| View ]	Date Posted: 04/ 13/ 08, 7:31am Can you tell us where the air tanks are located? [ Post a Reply to This Message ]