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Old 02-14-2017, 08:37 PM   #1
Mini-Skoolie
 
Join Date: Feb 2017
Location: BC
Posts: 19
Year: 2002
Chassis: Saf-T-Liner MVP EF
Engine: 5.9 Cummins
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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Location: Chapel Hill, NC
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Year: 2002
Coachwork: Blue Bird
Chassis: All American
Engine: Cummins 8.3/Allison MD3060
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Old 02-15-2017, 07:01 PM   #4
Mini-Skoolie
 
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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
Bus Nut
 
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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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Year: 2002
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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
Skoolie
 
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Year: 1992
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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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