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Old 07-25-2017, 06:04 PM   #1
Bus Nut
 
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Join Date: Feb 2016
Location: in the bus on the road
Posts: 480
Year: 1998
Coachwork: myself
Chassis: amtran
Engine: international dt466e allison md 3060
Rated Cap: 13 ton or so says the tit
High pitched wail.

When we are rolling it screams when i accelerate. Can't get rolling as fast as it usually does. Runs and sounds great otherwise.

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Old 07-25-2017, 06:18 PM   #2
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Location: Weeki Wachee, FL
Posts: 3,028
Year: 1997
Coachwork: Bluebird
Chassis: TC2000 FE
Engine: Cummins 5.9
Rated Cap: 72
Check your bus to make sure my ex wife isn't hiding in it!
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Old 07-25-2017, 06:42 PM   #3
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Join Date: Nov 2015
Location: Billings, MT
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Year: 2003
Coachwork: Thomas
Chassis: HDX
Engine: Cat C7
Rated Cap: 84 passenger
Get the cat out from under the hood!
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Old 07-25-2017, 06:43 PM   #4
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Year: 1998
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Chassis: amtran
Engine: international dt466e allison md 3060
Rated Cap: 13 ton or so says the tit
Can i rebuild the inner cooler on the turbo?

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Old 07-25-2017, 06:45 PM   #5
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Chassis: HDX
Engine: Cat C7
Rated Cap: 84 passenger
The intercooler is nothing more than a radiator for the compressed air.
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Old 07-25-2017, 06:46 PM   #6
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Location: in the bus on the road
Posts: 480
Year: 1998
Coachwork: myself
Chassis: amtran
Engine: international dt466e allison md 3060
Rated Cap: 13 ton or so says the tit
Can i fix it myself

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Old 07-25-2017, 08:03 PM   #7
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No moving parts in an intercooler. It's just a RADIATOR. The wailing comes from a moving part. Get a LONG handled screwdriver, hold the tip to moving parts and hold the other end to your head next to your ear. Bone conduction will do the rest. It acts as a stethoscope.
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Old 07-25-2017, 09:21 PM   #8
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Join Date: Feb 2016
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Year: 1998
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Chassis: amtran
Engine: international dt466e allison md 3060
Rated Cap: 13 ton or so says the tit
Thanks.

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Old 07-26-2017, 08:16 AM   #9
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Location: Massachusetts
Posts: 1,497
Year: 2002
Coachwork: Bluebird
Chassis: Bluebird
Engine: 5.9 Cummins 24v
Rated Cap: 72 pax
Of it is poorly accelerating, check any rubber connections post turbo. The wailing may be a hole it rip in a rubber boot... Turbo whine and air escaping?
Otherwise I would concentrate on your turbo 1st.

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Old 07-26-2017, 09:18 AM   #10
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Chassis: Blue Bird
Engine: ISC 8.3
Ditto that. Check for an air leak after the turbo. Torn boot, loose connection, etc. Noise can come from moving air.
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Old 07-26-2017, 11:01 AM   #11
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Join Date: Feb 2016
Location: in the bus on the road
Posts: 480
Year: 1998
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Chassis: amtran
Engine: international dt466e allison md 3060
Rated Cap: 13 ton or so says the tit
I can't find it. Maybe the turbo is bad. It has been over heating now also.

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Old 07-26-2017, 11:05 AM   #12
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Year: 1998
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Engine: international dt466e allison md 3060
Rated Cap: 13 ton or so says the tit
And I'm broke down in Indianapolis.

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Old 07-26-2017, 11:53 AM   #13
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Year: 1984
Coachwork: Bluebird
Chassis: International 1753
Engine: 6.9 International
Rated Cap: 65
Does it make the noise when it's stopped? What about revved up when stopped? Where does it sound like it's coming from, towards the front, rear, left right? Need a lot more info on whats going on.
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Old 07-26-2017, 12:07 PM   #14
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Location: in the bus on the road
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Year: 1998
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Chassis: amtran
Engine: international dt466e allison md 3060
Rated Cap: 13 ton or so says the tit
No. Not when we are stopped and revved. Can't really tell where it's coming from.

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Old 07-26-2017, 12:08 PM   #15
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Join Date: Feb 2016
Location: in the bus on the road
Posts: 480
Year: 1998
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Chassis: amtran
Engine: international dt466e allison md 3060
Rated Cap: 13 ton or so says the tit
I dont think its the boot

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Old 07-26-2017, 12:09 PM   #16
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Join Date: Feb 2016
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Posts: 480
Year: 1998
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Chassis: amtran
Engine: international dt466e allison md 3060
Rated Cap: 13 ton or so says the tit
When it screams the engine gets hot.

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Old 07-26-2017, 12:10 PM   #17
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Posts: 1,497
Year: 2002
Coachwork: Bluebird
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Engine: 5.9 Cummins 24v
Rated Cap: 72 pax
Could be the water pump.

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Old 07-26-2017, 12:11 PM   #18
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Engine: 6.9 International
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I'm thinking so too. Water pump is shot and the wail is either the bearings or the belt. Pull the belt off and see how the pump turns.
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Old 07-26-2017, 12:50 PM   #19
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Join Date: Feb 2016
Location: in the bus on the road
Posts: 480
Year: 1998
Coachwork: myself
Chassis: amtran
Engine: international dt466e allison md 3060
Rated Cap: 13 ton or so says the tit
Damn. The water pump. It only screams when the turbo should be running, but I'll check the water pump. I'm out on the highway.

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Old 07-26-2017, 02:37 PM   #20
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Join Date: Feb 2016
Location: in the bus on the road
Posts: 480
Year: 1998
Coachwork: myself
Chassis: amtran
Engine: international dt466e allison md 3060
Rated Cap: 13 ton or so says the tit
Its the water pump. Thank you all for your help.

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