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Started By
Message
re: Cab Over Semi 18 Wheeler's
Posted on 5/6/24 at 10:40 pm to Shanegolang
Posted on 5/6/24 at 10:40 pm to Shanegolang
The length laws that fueled their popularity in the 70's were shady business. It seems like one of the major hub cities, maybe Chicago or it could have been the state of IL, passed laws only allowing trucks in their jurisdiction under a certain length. Meanwhile, the teamsters union had bought a bunch of cabovers and could get your freight int/out of the city for a price. They also had some dealings with the manufacturers of the cabovers so it was a great gig for a while. I wish I could remember the story but the old teamsters guys I knew are all dead.
0
Posted on 5/6/24 at 10:42 pm to Shanegolang
That’s all you see in the rest of the world
Posted on 5/7/24 at 1:14 am to Cracker
quote:
That’s all you see in the rest of the world
This is correct. Only thing you see in Germany are MAN cabovers.
Posted on 5/7/24 at 1:41 am to redstick13
Driver retention has a lot to do with it.
Cab- overs ride rougher and driving a "hood" is a bit of a prestige thing.
Cab- overs ride rougher and driving a "hood" is a bit of a prestige thing.
Posted on 5/7/24 at 5:55 am to Shanegolang
Aerodynamics were a problem. They are still big in Australia and Europe
Posted on 5/7/24 at 6:03 am to Furious
quote:
I liked them because Optimus prime
And BJ & The Bear.
Posted on 5/7/24 at 6:10 am to billjamin
quote:Aktually they were considerably lighter than their long-nosed counterparts. Shorter wheelbase contributed to this but also made them ride noticeably crappier than the alternative truck layout.
Also they had some funky weight distribution that can impact how it scales.
I would guess safety was a major concern and probably contributed to the demise of this configuration as well.
Posted on 5/7/24 at 6:16 am to Shanegolang
I've always loved the sound of those 2 cycle Detroit Diesel engines.
Posted on 5/7/24 at 6:20 am to Shanegolang
The GOAT
Posted on 5/7/24 at 6:22 am to Shanegolang
Posted on 5/7/24 at 6:24 am to Shanegolang
You need a pillow above your head for you will be ejected into the roof on the slightest bumpy roads. One of the most uncomfortable rides I’ve ever had the luxury to drive. The 70’ 7 law isn’t in effect anymore so the manufacturers did away with them.
Posted on 5/7/24 at 7:01 am to Tempratt
quote:The 71 Series Detroit Diesels were originally designed and developed pre-WWII to be bus engines.
I've always loved the sound of those 2 cycle Detroit Diesel engines.
The six cylinder original variant (6-71) generated around 130 hp which was great for the 1930s.
Manufacturing techniques and technology at the time was primitive compared to modern-day production. The mating surfaces didn’t mate well, leading to those engines being sloppy (leaking inside and outside).
The old saw about 6-71s was that if you put a picture of one on the wall, there would be an oil stain behind it after an hour.
They are still in-use worldwide; if you need 200hp in a third world bunker powered by diesel, there are plenty of worse choices.
The played a big role in WWII, in marine and land-based equipment. They were obviously too heavy to use in aero planes.
Posted on 5/7/24 at 7:06 am to SG_Geaux
quote:
Harder to drive. Harder to work on. More dangerous in a crash. Not as comfortable.
Makes you wonder why they were ever built
Posted on 5/7/24 at 7:28 am to soccerfüt
I worked on a few offshore jack up rigs that had Detroit engines on them. They would put out much more torque than their counterparts but like you said, they went through as much oil as they did diesel.
Posted on 5/7/24 at 7:29 am to Shanegolang
Length law changes and the fact they were basically death traps in a crash made them unpopular. My father, owns a few rigs as part of his trucking business, told me that back in the 70's and 80's, truckers called them suicide cabs. The cab over designs had a tendency in a crash to flip forward and smash the front of the cab into the pavement, thus throwing the operator face first into the pavement.
Posted on 5/7/24 at 7:35 am to billjamin
quote:
Has the aerodynamics of a brick. Truck companies are chasing efficiency due to fleets and the govt pushing them to be for fuel efficient. Also they had some funky weight distribution that can impact how it scales.
Also I feel it’s not safe considering if you hit something there’s no buffer between you and what you hit
Posted on 5/7/24 at 10:46 am to soccerfüt
quote:
Aktually they were considerably lighter than their long-nosed counterparts. Shorter wheelbase contributed to this but also made them ride noticeably crappier than the alternative truck layout.
I didn't mean gross weight. I seem to remember something about how the axles weighed out that made them very sensitive to popping for a heavy axle. I might be mistaken though.
Posted on 5/7/24 at 10:48 am to Tempratt
quote:
I've always loved the sound of those 2 cycle Detroit Diesel engines.
Love the old 6V-71T backed by a road ranger that we used on fluid pumps back in the day. One of my happiest days was when Shell got all shitty with the class1 div 2 engines and we had to dust off all the old 2 strokes that they made us put away because of tier iv.
Posted on 5/7/24 at 11:09 am to Shanegolang
They’re still around in certain applications, just not OTR due to the rough ride from sitting right on top on your wheel/suspension.
If you drive a lot in tighter conditions, like cities, you’ll find them.
If you drive a lot in tighter conditions, like cities, you’ll find them.
Posted on 5/7/24 at 11:29 am to BuckyCheese
quote:
Which gave us this shite;
Try navigating a a roundabout with that POS
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