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Old 02-21-2013, 01:09 AM   #11
Skoolie
 
Join Date: Feb 2013
Location: Southeast raleigh
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Year: 1974
Coachwork: Crown
Chassis: Supercoach
Engine: Detroit Diesel 6-71
Re: Cat 3126 governor

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Originally Posted by richlindquist
Quote:
Originally Posted by inkblots84
I. poke to the head maintenance guy at the nc school bus supply today, and state law in nc is that all school buses be governed at 45mph. He said to bypass this take it to CAT to be reprogrammed as stated above. I'd lose my mind going 45 everywhere lol
This surprised me, so I had to look it up, what do you know it really is the law! You would think that the people they trust with the safety of their children would be able to understand a speedometer.

Rich
You must not have done much driving in nc.. I am not surprised at all! People here (in the RDU area anyway) drive crazy.. And stupid. And if it rains? All hell breaks loose!! Snow? Forget it. I love to drive in the snow (I'm originally a new englander) but I won't step foot into that mess here

Just a side note, bus guy also said the cats are notorious for leaking oil. Supposedly they pretty much all do to some degree (they don't have blue birds here), but cats can be the worst. According to him they were originally designed for large marine use like yachts, but reconfigured for buses which I thought was pretty neat.
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Old 02-22-2013, 03:43 PM   #12
Mini-Skoolie
 
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Location: Portsmouth, NH
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Year: 2001
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Chassis: Frieghtliner
Engine: Cat 3126
Rated Cap: 77
Re: Cat 3126 governor

I found an online service manual, and the speed is limited when the bus is bought, and all it takes it to take it to a Cat dealer and they can reprogram the max speed for $50. It seems totally worth to me.
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Old 08-04-2015, 02:34 PM   #13
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I found an online service manual, and the speed is limited when the bus is bought, and all it takes it to take it to a Cat dealer and they can reprogram the max speed for $50. It seems totally worth to me.
Sorry to bring a thread back from the dead. I have a 3126 bus that also wont go over 55-60mph, did you have any luck at the CAT dealer making it go faster?
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Old 08-08-2015, 11:43 AM   #14
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Sorry to bring a thread back from the dead. I have a 3126 bus that also wont go over 55-60mph, did you have any luck at the CAT dealer making it go faster?

That member hasn't been on here for over a year.
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Old 08-08-2015, 12:20 PM   #15
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Originally Posted by knowpistons View Post
Sorry to bring a thread back from the dead. I have a 3126 bus that also wont go over 55-60mph, did you have any luck at the CAT dealer making it go faster?
Porkchopsandwiches wrote Allison a very nice letter requesting permission to have 6th unlocked on his MD3060, explaining why he wanted it, etc. If your 3126 has an electronic Allison, contact them.

But, remember you *are* driving a school bus sold at the end of it's useful life, and its not an MCI or Eagle motorcoach.

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That member hasn't been on here for over a year.
I noticed all the dust.
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Old 08-08-2015, 01:28 PM   #16
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Bottom line, buses don't need to go over 60mh.

More power for hill climbing is a different story.

Nat
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Old 07-22-2016, 12:58 PM   #17
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I could only hit 65 mph on the ride home with my purchase. It seemed that if I kept the hammer down it would overheat and I would have to was it back to 55 for the light to go out.
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Old 03-19-2017, 01:50 AM   #18
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Year: 1999
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Chassis: Saf-T-Liner MVP ER
Engine: CAT 3126
Thumbs up

I sure am glad people on these forums don't get their panties in wads over non-issues like "necrobumping".

It's good to be part of the 3126 club. Mine's the "e" (electronic) version and hooked up to an Allison MD3060. The previous owner passed on his immaculate service records, which contain an entry from a non-CAT technician (if I remember correctly) that reads "6th gear unlocked". To perform this change, I believe nothing more is necessary than proprietary CAT software and a connector. You could probably have it done for free, when having other maintenance done by someone familiar with the CAT software.

With the seats in, I reach 75 mph on flat roads and Indiana-grade inclines.
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