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09-04-2010, 07:19 PM
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#1
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Senior Member
Freightliner Owners Club
Join Date: Aug 2008
Location: Florida Keys
Posts: 2,687
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Alternator Seized and snapped the belt
What started as a simple radiator cleaning got complex real quick…
Based on suggestions from other posts, I was out spraying Simple Green on my radiator to get rid of all the accumulated gunk. After the second application and rinse, I decided to start the engine to blow out any remaining water and debris. After starting the engine, went around back and notice NO air was coming through the radiator. Stopped the engine and climbed under with my flashlight and saw the serpentine belt was hanging loose. Looked further and saw a snapped end of the belt. Thank God this was in my driveway.
Started checking pulleys and quickly found the alternator was seized. Fortunately on my Winnebago Tour ISL 400hp Cummins, there is a bunch of room (relatively speaking) on that side of the engine so you can get in there to get the alternator off. Positive connection came off easy but negative connection was rusted on and had to lock the vice grips on to get it off. Four mounting bolts came off easy.
170 amp replacement alternator should be in on Tuesday.
Anyone else have an alternator seize on their MH?
__________________
Tom and Katharine
'07 Winnebago Tour 40TD, 400hp Cummins
'17 Winnebago View 24V, '02 R-Vision B+
RVing for 20 years & 200,000+ miles
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09-05-2010, 07:49 PM
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#2
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Registered User
Freightliner Owners Club
Join Date: Sep 2005
Location: Crossville, Tennessee
Posts: 794
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It has not happen to me; yet! The engine is still under warranty. Did they send you a new one free?
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09-05-2010, 08:32 PM
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#3
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Senior Member
Winnebago Owners Club Freightliner Owners Club
Join Date: Aug 2006
Posts: 1,500
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Who is sending you the replacement?
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09-05-2010, 08:54 PM
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#4
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Senior Member
Winnebago Owners Club
Join Date: Aug 2002
Location: Indian River, De
Posts: 1,024
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Same thing happened to me, also in my driveway, about 5 years ago. We were literally leaving (or so we thought) for our winter getaway. I went out to warm up the rig, and noticed that the dashboard voltmeter was low. Raised up the idle speed a bit; still no joy. Shut down and started checking back in the engine compartment; found the broken belt on top the engine. The alternator was seized.
We were still under chassis and engine warranty, and Freightliner covered it completely, with no hassles, but it took 3 days for the local dealer to get one, and install it.
__________________
CaptBill
USAF 1965-1971; USCG Master
2002 Horizon 36LD
Indian River, De
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09-06-2010, 06:21 PM
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#5
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Senior Member
Appalachian Campers
Join Date: Sep 2002
Location: Dixie !! (north Georgia) USA
Posts: 4,114
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Our coach with the 425 cummins was just a few weeks old when we started out on a trip. I pulled it out of the shed and was about to hook the towed up. Saw something under the shed and upon investigation found it to be a broken belt. Apparently the alternator had seized and when I started the engine it burned the belt into. Glad it did not wait for us to get on the road.
I asked Freightliner to send a mechanic, a belt and a new alternator to the house. They sent a huge wrecker and towed the thing 30-40 miles to their shop and installed the new alternator. Go figure which cost more.
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09-07-2010, 06:56 PM
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#6
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Senior Member
Freightliner Owners Club
Join Date: Aug 2008
Location: Florida Keys
Posts: 2,687
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Thank you dengraham for your suggestion to call FCCC!
Even though I ordered a new alternator through my local Cummins shop, I called FCCC today and they said it was still under warranty and to fax them the bill for the parts and they would reimburse me.
Son Joe and I crawled under the coach, slithered near the engine and put the alternator on and managed to get the belt on correctly too!. Started up fine and I'm good to go.
__________________
Tom and Katharine
'07 Winnebago Tour 40TD, 400hp Cummins
'17 Winnebago View 24V, '02 R-Vision B+
RVing for 20 years & 200,000+ miles
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09-07-2010, 07:20 PM
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#7
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Senior Member
Tiffin Owners Club Freightliner Owners Club
Join Date: Feb 2008
Location: Pensacola, Florida
Posts: 5,173
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That's what counts.
__________________
Travel well, travel safe,
Jim
2006 Tiffin Phaeton - 2011 Cadillac SRX
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09-07-2010, 08:16 PM
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#8
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Registered User
Freightliner Owners Club
Join Date: Sep 2005
Location: Crossville, Tennessee
Posts: 794
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Tom,
You are welcome. I'm glad it worked out so well for you. How many miles do you have on your motor home? My belt "squeaks" when I turn off the engine so I am wondering of my alternator is starting to "tighten up?"
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09-11-2010, 06:49 AM
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#9
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Senior Member
Freightliner Owners Club
Join Date: Aug 2008
Location: Florida Keys
Posts: 2,687
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I have about 35000 miles on the coach. It would be tough to determine what is actually squeaks back there - belt or alternator - with all the motor noise. Mine was worst at startup then would quiet down.
__________________
Tom and Katharine
'07 Winnebago Tour 40TD, 400hp Cummins
'17 Winnebago View 24V, '02 R-Vision B+
RVing for 20 years & 200,000+ miles
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03-17-2019, 03:12 PM
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#10
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Junior Member
Join Date: Mar 2019
Posts: 1
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Alternator and A/C Clutch are seized up. Snapped the belt. Now I just have to change everything out, might as well change the water pump too its a 2003 with 80K on it.
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03-17-2019, 03:28 PM
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#11
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Senior Member
Join Date: Jun 2012
Location: AB
Posts: 7,587
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Quote:
Originally Posted by amocochucker
Alternator and A/C Clutch are seized up. Snapped the belt. Now I just have to change everything out, might as well change the water pump too its a 2003 with 80K on it.
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Not a bad plan because the old pump has a steel impeller and when the bearings go out, the impeller chews out the casting unless you catch it quickly when it starts leaking coolant. The new pump uses a plastic/nylon impeller.
__________________
2019 Unity LTV CB, pushed by a 2013 Honda CRV, BlueOx Baseplate, Aventa Bar & Patriot Brake
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03-17-2019, 05:00 PM
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#12
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Registered User
Join Date: Oct 2010
Posts: 2,295
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Our coach also sits in our driveway with a seized alternator. I'm going to unseize it with a socket wrench and long leverage bar then drive it to the shop for repair.
Our coach sits for months without starting the engine. How long was your coach sitting.
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03-18-2019, 12:36 PM
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#13
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Registered User
Join Date: Mar 2019
Posts: 1,336
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Curious as to the manufacturer of the seized alternators? Bearing problem that wasn't greased when sealed?
Just wondering if it is something to have handy for a spare
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03-18-2019, 12:46 PM
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#14
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Senior Member
Join Date: Aug 2010
Posts: 2,772
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Alternator Seized and snapped the belt
Just wondering if this is a large scale problem on these DPs. When should you have belts changed and alt and AC checked? Have a 2006 C7 Cat on a Freightliner chassis. Sits a lot between seasons but we live in it full time. Not really possible to drive it once a month and believe that just starting it up is not enough to help and actually causes problems. Never had belts and hoses changed. About time?
__________________
Terry & Alice
2006 Bounder 38L DP
2012 GMC Terrain
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