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08-12-2015, 01:07 PM
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#1
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Junior Member
Join Date: Mar 2012
Posts: 5
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Bypassing Dash AC Compressor
Hello everyone. I have been searching for this topic in a number of places and cannot find anything on it. Hopefully that's not because it's completely outrageous! ;-) My dash a/c just went out on my 2005 Fleetwood Expedition. Actually, it never worked well, but the compressor started making serious noises. I'm told it's the clutch and not a bearing. Regardless, the bill will be about $2,000 for something that is basically useless. So my questions is, has anyone ever bypassed the compressor by putting a shorter serpantine belt on, or installed a non-functional pulley where the compressor currently resides. My RV shop won't do this. Any help would be greatly appreciated!!
Thanks,
Kelly
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08-12-2015, 01:10 PM
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#2
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Registered User
Ford Super Duty Owner
Join Date: Nov 2014
Location: NW Ohio
Posts: 7,114
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What chassis?
(Note - the numbers I referenced are in the right drawing, not the left drawing)
If its a Ford V10, probably not. As you can see in this drawing, the tensioner (#1) pulls against the A/C compressor (#9). So you would need to fabricate a plate or something with an idler and mount it where the A/C compressor is.
..
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08-12-2015, 01:22 PM
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#3
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Senior Member
Country Coach Owners Club Solo Rvers Club iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,725
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On the last three DP's the air con has been an add on and has a separate V belt so all we'd have to do is remove it.
OP has a Fleetwood Expedition 38N according to his profile.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
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08-12-2015, 01:29 PM
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#4
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Junior Member
Join Date: Mar 2012
Posts: 5
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Sorry for being vague. It is a Freightliner Chassis with the Caterpillar engine. It's a DP.
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08-12-2015, 01:32 PM
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#5
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Senior Member
Thor Owners Club Texas Boomers Club
Join Date: May 2015
Location: El Paso TX
Posts: 394
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Why not find another compressor at the junk yard? A lot cheaper then 2 thousand and you would have cold air again!
__________________
Dave + Linda
2015 Palazzo 36.1
2010 Honda CR-V toad and Roadmaster Sterling
FMCA F451520 - Texas Boomers - RVM#128
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08-12-2015, 01:44 PM
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#6
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Senior Member
Country Coach Owners Club Solo Rvers Club iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,725
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Quote:
Originally Posted by Tiresrus
Sorry for being vague. It is a Freightliner Chassis with the Caterpillar engine. It's a DP.
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OK, I don't know the lineup for them so I didn't catch that.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
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08-12-2015, 03:29 PM
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#7
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Senior Member
Ford Super Duty Owner
Join Date: Apr 2012
Location: Austin, TX
Posts: 1,886
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I'd figure out the compressor type. There are only so many makers of AC compressors and I've never seen a clutch that's anywhere near $2k. Most DPs have the AC clutch in a position where it's reasonably accessible. For $2k, I'd expect replacing the compressor completely, flushing everything, new dryer, new expansion valve.....
I just did a clutch on Toyota - it was remarkably easy to do once you know what you're after... There is a possibility that the DP setup is harder, but I can't imagine $2k.
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08-12-2015, 03:37 PM
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#8
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Moderator Emeritus
Newmar Owners Club
Join Date: Apr 2014
Location: Southern Indiana
Posts: 19,417
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If it is a CAT pusher. Is there a single belt that only drives the AC compressor?
If so just remove it to "bypass" the compressor.
$2,000 has got to be for much more than just fixing the clutch as others mentioned
Steve
__________________
Steve
2002 Newmar Mountain Aire 4095
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08-12-2015, 03:41 PM
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#9
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Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,311
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Quote:
Originally Posted by Tiresrus
Sorry for being vague. It is a Freightliner Chassis with the Caterpillar engine. It's a DP.
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So were talking C-7 , Cat ? or a 3126E ?
First thing I'd look into would be a second opinion and quote on the repair.
Even with the extra time a rear rad would take, 2K is a chunk of extra change!
I'll look at my 3126B set up then try to find out if a C-7 belt routing / compressor location is the same ; to see if a shorter belt is an option.
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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08-12-2015, 04:00 PM
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#10
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Senior Member
Entegra Owners Club
Join Date: Apr 2011
Location: Estero, FL
Posts: 2,513
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First off, if it is just the clutch, clutches can be removed and replaced without discharging the system. Go to a better ac shop. That's a $200 to $400. depending on the cost of the clutch. Unless it's ridiculous to get to.
If you are insistent on bypassing the ac compressor, find an application for that cat engine that doesn't have air conditioning and see if you can't use that belt. Compressors are typically supplied by the engine supplier.
__________________
Gary & Leigh
2019 Entegra Cornerstone 45Y,
2010 Seneca, 2011 & 2014 Anthem, 2017, 2018 Cornerstone(All Sold)
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08-13-2015, 07:49 AM
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#11
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Junior Member
Join Date: Mar 2012
Posts: 5
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Thank you, everyone! What a great forum!! It is a C-7, and I like the idea of finding an application for this engine that doesn't include the compressor. That has to exist, which means a shorter belt has to exist. I think I may start with my local freightliner dealer. Thanks again!
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08-13-2015, 08:18 AM
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#12
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Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,311
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Kelly; Please take a moment to set up a signature line, by clicking " Quick Links" under your welcome message , then " Edit Signature" type in your coach info then click, save at the bottom of that page. Then your coach info will appear below your posts, as mine does below this one ; automatically; you won't have to type it in every time.
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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08-13-2015, 11:53 AM
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#13
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Senior Member
Monaco Owners Club
Join Date: May 2015
Posts: 308
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Please see my post waiting for parts. Avoid being stuck. Good Luck!
__________________
Cathy
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08-13-2015, 01:27 PM
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#14
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Senior Member
Country Coach Owners Club
Join Date: Jan 2006
Location: Northern California
Posts: 5,850
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I bought
Compressor for $200
Dryer $24
Have AC shop vacuum otthe 134A.
Install your compressor and dryer. About 8 bolts.
Have Ac shop test and fiil your system
Or
Buy clutch for compressor $125, and minstall.
__________________
Dean
1995 38' CC Magna #5280 **** Sold after 21 years of enjoyment.
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