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Old 12-10-2017, 06:11 PM   #21
malibu795
 
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Spent couple years looking... Cummins and cat where the popular Engine choice when cat made OTR Engines
When they're not making OTR Engines it's cummins/Detroit
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Old 12-10-2017, 06:47 PM   #22
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One thing about detroit is the cores are getting expensive and a lot of the reman parts are garbage. Heads dropping valves, injector failure rates over 50%, and dont even bother with their exhaust manifold go with fulltilt. Some shops are rwbuilding their own heads and injectors.
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Old 12-10-2017, 07:21 PM   #23
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Quote:
Originally Posted by RascalMafia View Post
So now you're an expert in marine engines as well. Who knew one person could be so multifaceted?
He thinks anything yellow is garbage, also still thinks it hurt caterpillar when they stepped out of the truck engine market.
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Old 12-10-2017, 07:47 PM   #24
sootie

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Quote:
Originally Posted by chevota84 View Post
Yeah, about the same. They follow about the same timeline too, 08-12 are the worst and then they got better but still not as good as the pre emissions stuff. Is the maxxforce 7 the same as the ford 6.4?

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they are the same design and physically quite similar however not all parts are interchangable. For instance the blocks are different, the turbo offerings/setup are different but the fuel systems, cam, crank, rods are all interchangable. The pistons in the maxxforce are a great upgrade for the six four guys due to the bowl design and the fact that six fours eat pistons for lunch.
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Old 12-10-2017, 09:30 PM   #25
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Originally Posted by chevota84 View Post
Yeah, about the same. They follow about the same timeline too, 08-12 are the worst and then they got better but still not as good as the pre emissions stuff. Is the maxxforce 7 the same as the ford 6.4?

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In my eyes yes, just has some different configured parts, same problems expensive to repair worse than a vt365 and a 6.0
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Old 12-10-2017, 09:38 PM   #26
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Originally Posted by takedown95 View Post
I donít know much about heavy duty motors except the ones I used to deal with in the Army. I believe they were all D60 series, supercharged and turbocharged. They were dogs.

Anyway, as Iíve been looking at motorcoachs and toters Iíve found that Volvoís have the highest resale value and freightliners with Cats or Cummins are less valuable and Mercedes seem to be the least valuable. Any thoughts?
I don't have exp on mercedes otr motors, but If they are anything like what's in boats (mtu) or the sprinters 2.5 and 3.0 they are expensive to fix and most you need mercedes software to work on them. I know a over haul on a mtu is about 20-30k more than a man, or cat
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Old 12-11-2017, 07:27 AM   #27
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Or maybe because the trucks are all 15+ year old fleet trucks? They also have iron bodies that rust away. I did once a year oil changes on my old d12 and on the oil sample everything was low single digits except for iron would be in the teens. I havent heard any other engine coming close to that.

Also if its in a mack its not a d12


So why do Cat/Cummins powered trucks always sell higher if the others are superior? Why did you buy a Detroit if the D12 was amazing? Is everyone in on the scheme to artificially inflate the price of Cat/Cummins?

The Mack comment is referring to the fact after they got infected by the European stupidity they arenít the trucks they once were.
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Flipping your mirrors up when you don't tow? That serves no purpose other than to let me know that you are a douche, from a distance.
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Old 12-11-2017, 07:29 AM   #28
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I have a few questions about motors.

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Originally Posted by RascalMafia View Post
So now you're an expert in marine engines as well. Who knew one person could be so multifaceted?


Heís an internet expert on everything. Notice in all the years and all the forums heís never once backed up any of his BS? Like his million HP L10 Cummins a friend of a friend of a friend owns.

He says how the Catís in Europe break cranks every 15min but when we point out how the euro engines here are chit like the Maxxforce. He claims how they are US spec and not the Euro versions. So I say the C18ís are euro spec and not US and get no response lmao.
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Flipping your mirrors up when you don't tow? That serves no purpose other than to let me know that you are a douche, from a distance.

Last edited by jfaulkner; 12-11-2017 at 07:32 AM.
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Old 12-11-2017, 08:24 AM   #29
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Originally Posted by jfaulkner View Post
So why do Cat/Cummins powered trucks always sell higher if the others are superior? Why did you buy a Detroit if the D12 was amazing? Is everyone in on the scheme to artificially inflate the price of Cat/Cummins?

The Mack comment is referring to the fact after they got infected by the European stupidity they arenít the trucks they once were.
I think you misspelled volvo when you said mack.
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Old 12-11-2017, 08:40 AM   #30
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The biggest issue with the motorcoaches we have come in the shop (CAT and Cummins) are lack of maintenance. They think that because the vehicle doesn't move, soft parts don't degrade.

We had a coach come in before Thanksgiving that shut down on the interstate. The primary fuel filter had been in place since 2005, and corroded to the point the case fell off of the media when the tech tried to remove it.

We sold Mercedes powered busses for a few years. 2008-2010. Expensive and complicated assemblies. Many of them scored blocks, and they are induction hardened so they are trash after failure unless you bore them.



Everyone makes trash engines at some point.

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Old 12-11-2017, 10:49 AM   #31
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Quote:
Originally Posted by jfaulkner View Post
So why do Cat/Cummins powered trucks always sell higher if the others are superior? Why did you buy a Detroit if the D12 was amazing? Is everyone in on the scheme to artificially inflate the price of Cat/Cummins?

The Mack comment is referring to the fact after they got infected by the European stupidity they arenít the trucks they once were.
Youre asauming that your meteic is perfect and the market is perfect.
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Old 12-11-2017, 10:53 AM   #32
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How much so detroit and cat powered columbias go for? Also theres zero market for volvo engines for a glider. Even if someone wanted to put an engine in a glider theres many small details that would add up to a big PITA. Also nobody is familiar with them and theyre gutless. 63mm inducer gutless. I just said theyre reliable which they are. Rebuild costs are comparable to a detroit.
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Old 12-11-2017, 06:50 PM   #33
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Originally Posted by biggy238 View Post
Everyone makes trash engines at some point.

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Truer words have never been spoken.


Rarely work on coaches but last one we did split a coolant hose during the test drive. Really hard to vent that smell out of the bedroom. Lol
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Flipping your mirrors up when you don't tow? That serves no purpose other than to let me know that you are a douche, from a distance.
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Old 12-11-2017, 06:55 PM   #34
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I think you misspelled volvo when you said mack.


Na, Volvoís are awesome! So awesome you can trade a riding mower for one if itís full of gas. Thatís why the container guys use them, the side skirts can easily be reattached with tarp straps.
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Flipping your mirrors up when you don't tow? That serves no purpose other than to let me know that you are a douche, from a distance.
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Old 12-11-2017, 06:56 PM   #35
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Who would devote the mental capacity to know what a Columbia sells for? To the original poster I haul cattle or pull an rgn daily whith a 3406 that's ten years older than I am. I wonder how the new x15 will be holding up in 35 years?
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Old 12-11-2017, 07:21 PM   #36
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Serious question: I'm a western Dealer as of February, and already have two out front for sale. What is the take on the 2018 HD cummins and Detroit, failure points and routine failures? I'm sure I'll find out the brute force way, but any heads up is good.

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Old 12-11-2017, 09:52 PM   #37
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Originally Posted by jfaulkner View Post
He’s an internet expert on everything. Notice in all the years and all the forums he’s never once backed up any of his BS? Like his million HP L10 Cummins a friend of a friend of a friend owns.

He says how the Cat’s in Europe break cranks every 15min but when we point out how the euro engines here are chit like the Maxxforce. He claims how they are US spec and not the Euro versions. So I say the C18’s are euro spec and not US and get no response lmao.
Euro emissions and specs are alot more lax than us euro guys even hate euro things
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Old 03-14-2018, 08:50 PM   #38
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Detroit and Cat are most reliable.
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Old 03-14-2018, 09:17 PM   #39
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Detroit and Cat are most reliable.
Detroit and Cat don't belong in the same sentence. You dug this thread up to give that revelation?
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Old 03-14-2018, 10:09 PM   #40
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There is nothing wrong with a 12.7 Detroit.


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