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Old 02-14-2017, 08:37 PM   #1
Mini-Skoolie
 
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2005 Bluebird CAT C7

So I bought a couple of busses at auction, a 2002 12 window row Thomas coach with a 5.9 and allison 545, drove it all summer after a makeshift living conversrion, and the second is a 2005 10 window row Bluebird with a C7 with 295xxx km on it, allison 4 speed with OD, cruise control, and a wheelchair lift at the front.

I never did any research into the CAT bus, and now I am regretting that purchase after reading up on the C7. The bus being in imaculate shape. I paid $2400 Canadian for it, i'm sure I can sell it for the same price.
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Old 02-15-2017, 09:09 AM   #2
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I'm not following, do you have a problem or question about it or what's your point in the post?

That's the goal of the mechanical/drivetrains section is to ask/answer questions and give feedback.
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Old 02-15-2017, 10:18 AM   #3
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Old 02-15-2017, 07:01 PM   #4
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Yea I kind of rambled and didn't articulate my point well. It's mostly a general question as to whether the hate for the C7 is merited. Are they really THAT bad. If they are, I'll likely unload it.
What I've found on RV forums is people really hate the C7
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Old 02-15-2017, 07:28 PM   #5
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Not terrible as far as reliability. It's not nearly as good as an old fashioned 12v cummins or a mechanical dt466 but they can still be fairly reliable. Biggest thing is oil changes because the engine oil is abused harder due to the heui system.

Certain proprietary parts are alot more expensive then on a cummins but that has more to do with production levels and availability then manufacturer.

If you got a good deal on it and it seems in relatively good shape I wouldn't be afraid of it.

I'm not a fan of any engine, so take what I said for what you paid for it. But some people will trash talk anything based off of secondhand stories/knowledge. As for the ones I've worked on, they've been relatively trouble free, no worse then the first generation isb cummins.
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Old 02-15-2017, 08:09 PM   #6
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Yeah, they really aren't that bad of an engine, just expensive to buy parts for.

The 3116 is the one to absolutely avoid.
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Old 02-15-2017, 08:14 PM   #7
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your DT-466's post-95 are almost all HEUI engines too... and keeping clean oil in them lets them last nicely...

-Christopher
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Old 02-15-2017, 08:30 PM   #8
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I thought the C7 had a common rail system and the 3126 had HEUI?
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Old 02-15-2017, 08:34 PM   #9
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Quote:
Originally Posted by Stewzer55 View Post
I thought the C7 had a common rail system and the 3126 had HEUI?
Nope. Both heui.
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Old 02-15-2017, 08:42 PM   #10
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Well, let me clarify.

The C7 was eventually changed to a common rail, but that didn't happen until pretty close to the end of its production run. If you buy something with a C7 in it, chances are it's going to have a heui system.
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Old 02-15-2017, 08:45 PM   #11
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Quote:
Originally Posted by Booyah45828 View Post
Not terrible as far as reliability. It's not nearly as good as an old fashioned 12v cummins or a mechanical dt466 but they can still be fairly reliable. Biggest thing is oil changes because the engine oil is abused harder due to the heui system.

Certain proprietary parts are alot more expensive then on a cummins but that has more to do with production levels and availability then manufacturer.

If you got a good deal on it and it seems in relatively good shape I wouldn't be afraid of it.

I'm not a fan of any engine, so take what I said for what you paid for it. But some people will trash talk anything based off of secondhand stories/knowledge. As for the ones I've worked on, they've been relatively trouble free, no worse then the first generation isb cummins.
Well now this makes me wonder which bus I should spend time and money on converting. It's in really good shape all around, well maintained by the school board, good rubber. Needs the turn signals rewired with relays instead of the company bus or whatever the hell it is.

I chose the Thomas coach mainly because it has more headroom, and is more unique with the flat front, don't see many around. It turns sharper than the conventional with the shorter wheelbase, but the front wheel wells limit the floor plan layout having to work around them.

As far as driveability, hardly comparable at all, the Bluebird CAT is quieter, has more power and pickup, the "cockpit" is far more modern, digital gauges, cruise control and OD is nice too. I never drove it enough to compare fuel mileage between the two busses.
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Old 02-15-2017, 08:52 PM   #12
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Quote:
Originally Posted by Rameses View Post
Well, let me clarify.

The C7 was eventually changed to a common rail, but that didn't happen until pretty close to the end of its production run. If you buy something with a C7 in it, chances are it's going to have a heui system.
It is a HEUI yes
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Old 02-15-2017, 09:11 PM   #13
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Ah pHEUI (fooey)!

Have any pictures of the busses?
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Old 02-15-2017, 09:20 PM   #14
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id keep the 05!!

most likely the bus itself is probably insulated better and has better ride quality...

its night and day for me going between my 91 and my 00
-Christopher
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Old 02-15-2017, 09:30 PM   #15
Mini-Skoolie
 
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Not too sure how to embed, and I don't really have photo bucket or any other photo hosting account other then Instagram, check out my Instagram handle @theroamsteadproject
I haven't posted in a while as I parked it for the winter
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Old 02-15-2017, 09:59 PM   #16
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I followed you.
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Old 02-17-2017, 09:26 AM   #17
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What allison does the c7 have? that would make more of a differece to me then cummins vs cat.
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Old 02-18-2017, 09:44 AM   #18
Mini-Skoolie
 
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Allison mt643
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Old 02-20-2017, 10:10 AM   #19
Bus Crazy
 
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If it runs good, I'd choose that over a cummins/at545 combo.
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Old 02-20-2017, 02:52 PM   #20
Mini-Skoolie
 
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Can you elaborate on why you'd chose that combo?
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