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Shhh. Whats that sound?


St Louis Car 09

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Im a big fan of the O5`s,but something about them had me thinking for awhile now. Has anyone noticed when certain O5`s take off, their engines make a wierd shh shh shh sound,like a big spray bottle.I thought it was the coolest sound I heard come out of a bus.Does anyone know what causes that sound when the O5 take off?

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Im a big fan of the O5`s,but something about them had me thinking for awhile now. Has anyone noticed when certain O5`s take off, their engines make a wierd shh shh shh sound,like a big spray bottle.I thought it was the coolest sound I heard come out of a bus.Does anyone know what causes that sound when the O5 take off?

 

Is it the CNG buses youre talking aboot?

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I notice that the O5`s are the only models that make that sound.If so they shop personel need to find out the cause.

 

The Orion Vs arent the only ones that screech

 

 

 

 

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That artic has to be the most annoying bus I have ever heard.

 

You think thats annoying?! Try living in a neighborhood full of them screeching buses. The M15 got them all over the place!

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You think thats annoying?! Try living in a neighborhood full of them screeching buses. The M15 got them all over the place!

 

screech screech screech screech screech...

 

annoyed yet? ;)

 

but the sound wouldn't annoy me

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The Orions, it is most likely the bearings that the belt is on. Maybe those bearings need greasing, and I only heard them (and driven them), on those 400 and 600series buses, from KB and WF. On the 6000series, I never heard that "squirting spray bottle" sound.

 

As for the artics, that is all belt. I heard that same loud screeeeech....ing sound on Van-Hools when I worked for Campus Coach. We had to open the engine compartment, to check fluids, etc, and it is worst when the compartment is open. That sound can kill ones eardrums...........

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