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Old 05-16-2015, 08:16 AM   #1
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Latest Bus Fire

Another school bus fire. Rear engine. Everyone is ok.
UPDATE: School Bus Carrying 50 Students Destroyed by Fire, No Injuries

And a Florida one recently too-
http://www.wesh.com/news/school-bus-...ounty/32997010
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Old 05-16-2015, 08:55 AM   #2
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there has to be a root cause to all of these, something flammable on the turbo/exhaust to lite and then oil residue???
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Old 05-16-2015, 03:19 PM   #3
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The fan dive is a hydraulic motor running 10w 30 motor oil driven from a hydraulic pump (Masive power steering pump) off the front timing gears of the engine, just under the injection pump.

When the seal go's on that fan drive, it sprays hot engine oil (10W 30) all over the exhaust manifold and turbo. That only go's on so long before it catches fire. Then the fan drives the flames into a blast furness.

Also, the rear engines are often not washed in the engine bay. Dust from dirt roads mixes with oil to form a layer sometimes 6 inches thick down on the lower engine and transmission blocks / oil pans. Perfect mix for a nice hot fire.

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Old 05-16-2015, 05:30 PM   #4
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I'm wondering the same as y'all. Nat that does sound plausible for sure.

Is anyone keeping track of what make/models engine/tranny combos are in all these toasted RE's?

I was reading something from a garage earlier today - talking about engines/trannies overheating/catching fire when not matched properly for their locale and/or the bus's uses. Do you think that this bus climbing a hill when it started smoking is just coincidence or could it possibly be ndicative of a root problem?
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Old 05-16-2015, 09:41 PM   #5
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Originally Posted by SassyLass View Post
I'm wondering the same as y'all. Nat that does sound plausible for sure.

Is anyone keeping track of what make/models engine/tranny combos are in all these toasted RE's?
The one in Kansas looks like a Int'l 3000RE, just going by the open engine bay door.

Time to start trolling NTSB reports when they start investigating; and probably as a precaution for all us RE owners- clean your engine bay and blocks. We can't enough
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Old 05-17-2015, 02:21 AM   #6
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Looks like both buses were Internationals. Maybe an undiscovered design flaw rearing it's ugly head. Maybe the start of a pattern failure.
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Old 05-17-2015, 07:36 AM   #7
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The Kansas fire could be because of the massive cuts to the state education budget, limiting preventive maintenance on buses. We'll not know until the NTSB investigates, though. Bays and blocks need to be clean.
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Old 05-17-2015, 07:38 AM   #8
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Looks like both buses were Internationals. Maybe an undiscovered design flaw rearing it's ugly head. Maybe the start of a pattern failure.
Its not a manufacturer-specific thing.
Plenty of Thomas RE's go up in flames too.
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Old 05-17-2015, 08:09 AM   #9
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Check this out! Not an RE, but damn...
Forest Hills school officials: Overheated power distribution module caused bus fire; bus recalled 5 times | MLive.com

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Old 05-20-2015, 01:36 AM   #10
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The information I posted comes from the shop I work part time for, that maintains 400 buses.

We have seen it happen in In both Thomas and Blue Bird pushers.

It happens so fast, the driver has no chance to battle the flames with the fire suppression equipment.

We only have one 07 Am Tran. It's flawless like bus porn. No issues with it, completely different set up with the fan drives.

Nat
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