garfieldsgarfieldsid
arizona
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Joined: 10/26/2009
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i bought a 1995 fleetwood flair 25 ft motor home with a 454 ci engine,the previous owner said the engine a/c belt kept breaking. i had a new belt installed (oem) by a shop. the tension was set properly.i watched the belt turning with the engine running and it looked fine. we left for vacationan i kept check on the tension it never changed.the first time i went to use the a/c the belt broke there was a noise,not a squeal,then nothing .i recovered the belt it looked fine except where it broke.what do i do now? please help. ther is 48,000 miles on the m/h
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bullydogs1
New Jersey
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Joined: 06/26/2006
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The compressor pulley itself must be seizing upon engagement of the clutch to the compressor...I would replace the compressor clutch and the pulley that the belt turns....or since you have to do it anyway...replace the compressor and the pulley clutch...then no more problem...
Stuart and Stella Denning
2009 Holiday Rambler Endeavor 41SKQ
The 3 Bulldogs (Summer, Sully, and Sierra)
2007 Saturn Vue (TOAD)
I tawt I taw a puddy tat
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HobbyHauler
South of Nashville, TN
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Joined: 08/07/2004
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Sounds like your compressor is seized. When you turn on the AC the clutch engages and with a seized compressor it tries to stop the belt. The 454 will win the battle and the belt will be toast.
Les Stallings
South of Nashville, TN
2002 Monaco Dynasty Jack 38, ISL 400, TAG
Toad: 2003 Saturn LW300
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chastho
arkansas
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Joined: 07/27/2005
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Have you checked the compressor to see if it is locked up? Bypass the switch to engage the clutch then see if you can turn it by hand, I bet you will find it will not turn.
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smkettner
Southern California
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Joined: 03/21/2005
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Does the compressor turn by hand? (not easy or freely but you should be able to get it to move) During your install inspection did you have the air on and compressor was turning?
Otherwise if the compressor turns I would take it to a a/c shop and make sure it was not over filled with freon or oil.
2001 F150 SuperCrew
2006 Keystone Springdale 249FWBHLS
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Gunship Guy
Florida
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Joined: 08/09/2003
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I'm hoping a couple dozen more people will respond with the same answer. 
PICS OF STUFF
I like chicks with nice tents.
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Tinstar
McKinney, TX
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Joined: 09/13/2003
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Maybe the compressor is seized.
There you go Gunship, 1 down 11 to go. Why are we doing this?
 Never pass up a chance to go somewhere
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othertonka
Stockton, CA
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Joined: 11/15/2003
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There is no doubt that the compressor is seized. When the AC is not on, the clutch on the compressor is disengaged and the AC compressor pulley is turning free and the belt is allowed to just turn free. Now you turn on the AC and the belt breaks!! When you turned on the AC, it activates the clutch on the compressor which should then allow the compressor to turn and do it's job, but guess what? Because the compressor is "seized" it won't turn and with all that added load, the belt either has to slip, or the clutch has to slip, or the belt "Breaks". Get the compressor checked before adding a new belt. The belt can also break in the winter when you use the "Defroster" because the defrost cycle also turns ON the AC. There yo go Gunship 2 down
Othertonka
2004 Southwind 32VS 8.1 Workhorse chassis
2002 CRV Toad
U. S. Gear Unified brake system
Retired Fire Captain, SFD
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zigzagrv
Nazareth, PA
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Joined: 08/12/2004
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Had the same thing happen on my old 454. The compressor was siezed. 3 down.
Ron
2003 Gulf Stream Ultra Supreme 33'
'95 Tracker toad
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Bushey562
Norco, CA
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Joined: 10/18/2005
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I dont think its the compressor, check the flux capacitor first they are alot cheaper than compressors.
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