Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 07-21-2013, 12:03 PM   #1
Senior Member
GA Navigator's Avatar
Join Date: May 2013
Posts: 335
AC compressor replacement

My engine driven AC compressor is shot. You can feel grinding and play in the pulley with the belt off and turning by hand. I'm thinking of replacing it myself then taking it to a shop to have the system charged with freon. Does anyone know what other parts need to be replaced and what about flushing the system?

1994 Holiday Rambler Navigator
300HP Cummins 8.3
Allison MD 3060
GA Navigator is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 07-21-2013, 12:31 PM   #2
Senior Member
Country Coach Owners Club
Join Date: Jan 2006
Location: Redding
Posts: 3,522
On my rig I had to replace two dryers (@ $20 each online) and the compressor ($200+ online) and the 134a (8lbs).

I could have just replaced the AC Clutch on the 17 year old compressor and not opened the system. But I decided to go the whole route due to its age.

If you do not have the rear OTR Bus Air option that cools the bedroom from the engine compressor, you will likely need less 134a and only one dryer.

1995 CC Magna #5280
C8.3L 300hp Cummins, 31,000lbs
deandec is offline   Reply With Quote
Old 07-21-2013, 12:47 PM   #3
Senior Member
GA Navigator's Avatar
Join Date: May 2013
Posts: 335
No I don't have that so just one dryer. It sounds easy enough. I replaced one on a truck of mine several years ago but I couldn't remember what all I changed. Seems like there was some sort of orifice somewhere. Maybe that was because I converted from R12 to 134. My biggest concern with my MH is if this old compressor pumped junk/metal shavings through the system. How do I go about flushing it out. I have a 30 gallon shop air compressor. Can I just blow it out with air?
1994 Holiday Rambler Navigator
300HP Cummins 8.3
Allison MD 3060
GA Navigator is offline   Reply With Quote
Old 07-21-2013, 12:52 PM   #4
Moderator Emeritus
TXiceman's Avatar

Vintage RV Owners Club
Texas Boomers Club
Oklahoma Boomers Club
Ford Super Duty Owner
Join Date: Aug 2000
Location: Full Time, TX Home Base
Posts: 17,169
Blog Entries: 21
Depending on the compressor failure, you may need to flush the system first, add driers and then evacuate and recharge. You also need to get ALL of the old oil out of the system (it is not in just the compressor) and get the right amount back into the system.

Amateur Radio Operator (KE5DFR)|Full-Time! - 2012 6.7L Ford Crew Cab Dually -2013 HitchHiker Champagne 38RLRSB - Travel with one Standard Schnauzer and one small Timneh African Gray Parrot
TXiceman is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Featured Campgrounds

Reviews provided by

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 11:43 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.