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Orion Bus International


BBC 9197

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  • 4 weeks later...

The waste gate mechanism on the turbo protrudes a bit.

Given the offset engine and tight quarters on the driver's side, they added that bit to accommodate it.

Came into production around 2000-2001 iirc. (don't quote me on that, I may well be wrong)

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That system was never the most responsive, if there's the slightest delay in the variable geometry turbo you'll get that. The technology was still pretty much in its infancy when they came out.

It's not the most reliable system when you compare it to what's on the market now, and they canbe headaches too.

We have literally hundreds of 2004-2006 Orion 7s with them in Toronto, and they behave the same.

Very maintenance intensive when you compare them to older, non egr'd series 50 engines.

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I was at the OTE today, I I found out that the Orion VII has an option of being a HF model with out any signifcant changes to the engineering of the bus. Similiar to the NABI HF and LF models. But because the Orion V was still in production, and the demand for HF was going down, it was never really brought to fruitation. Apparently there was a prototype out there of an HF Orion VII about 10 years ago. I found that interesting and decided to share that info. Other than that it was somewhat boring.

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I was at the OTE today, I I found out that the Orion VII has an option of being a HF model with out any signifcant changes to the engineering of the bus. Similiar to the NABI HF and LF models. But because the Orion V was still in production, and the demand for HF was going down, it was never really brought to fruitation. Apparently there was a prototype out there of an HF Orion VII about 10 years ago. I found that interesting and decided to share that info. Other than that it was somewhat boring.

I'm not too surprised at this. I've always thought that the OG VII looks like an updated V, which is one of the reasons I prefer the OGs over the NGs as I love the Vs. I would love to see photos of this prototype.

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I was at the OTE today, I I found out that the Orion VII has an option of being a HF model with out any signifcant changes to the engineering of the bus. Similiar to the NABI HF and LF models. But because the Orion V was still in production, and the demand for HF was going down, it was never really brought to fruitation. Apparently there was a prototype out there of an HF Orion VII about 10 years ago. I found that interesting and decided to share that info. Other than that it was somewhat boring.

That is just a bit more than slightly misleading.

The structure for a high floor bus is very, very different from that of a low floor one for a number of different reasons. It isn't just a matter of putting the floor higher up and being done with it.

Dan

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I was at the OTE today, I I found out that the Orion VII has an option of being a HF model with out any signifcant changes to the engineering of the bus. Similiar to the NABI HF and LF models. But because the Orion V was still in production, and the demand for HF was going down, it was never really brought to fruitation. Apparently there was a prototype out there of an HF Orion VII about 10 years ago. I found that interesting and decided to share that info. Other than that it was somewhat boring.

Not trying to start anything, but wouldn't it be cheaper to bring the Orion V back into production instead of doing that?

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The 5s at the end of production were multiplexed. There's nothing stopping you from using the current version.

As for meeting current emission standards, if you can stick a cng tank on the roof, it follows that a thermoking unit is no big deal either.

The exhaust after treatment plumbing can go in the old a/c spot, as per current production.

Which brings us back to the original sticking point: No property is interested in buying one.

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The 5s at the end of production were multiplexed. There's nothing stopping you from using the current version.

As for meeting current emission standards, if you can stick a cng tank on the roof, it follows that a thermoking unit is no big deal either.

The exhaust after treatment plumbing can go in the old a/c spot, as per current production.

Which brings us back to the original sticking point: No property is interested in buying one.

I wish NJ Transit had purchased V's instead of those inferior NABI's.

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The 5s at the end of production were multiplexed. There's nothing stopping you from using the current version.

As for meeting current emission standards, if you can stick a cng tank on the roof, it follows that a thermoking unit is no big deal either.

The exhaust after treatment plumbing can go in the old a/c spot, as per current production.

Which brings us back to the original sticking point: No property is interested in buying one.

I don't know why Orion didn't do the option of placing the CNG Tanks under the Orion V (not literally) The New Flyer C40 and some Neoplan AN440/AN460 CNG had their tanks under the bus.

Just a thought...

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That scenario makes the hair on the back of my neck stand up. To me, underfloor CNG tanks are batshit crazy.

Natural gas is lighter than air, any leak will try to migrate into the passenger compartment on its way upwards if the tanks are under the floor. At least if it's on the roof it will dissapate ( comparatively) harmlessly.

Conversely, LPG (propane) is heavier than air, so underfloor tanks would make sense there.

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There's been at least one instance of an underfloor CNG tank exploding and punching up through the floor into the passenger compartment. Fortunately, no one was injured.

Maybe so, but that's still 3/4" to 1" marine-grade plywood - pretty solid stuff. It would take one hell of a bang to penetrate it.

I would hate to see the result of a rooftop tank going - there isn't much more than 1/8" melamine and 18ga aluminum up there.

Dan

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I'm still wondering how all 222 C40's here in LA haven't been in a single accident...

I was thinking, since all the mechanics are pro-CNG, they must have know how to take care of it carefully!

Don't forget the Neoplan!

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