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As Turbobanana says, it's a cabover as in Cab Over Engine, as in 'cabover Pete with a reefer on and a jimmy haulin' hogs' from the song Convoy by C W McCall. The reefer, Google tells me, refers to a refrigerated semitrailer, not a jacket. The 'Pete' refers to Peterbilt who made two cabover models and the 'reefer on' means that the refrigeration motor was running and no, I'm not an expert, just looked it up on Google.
Edited by BobCD on Monday 19th October 16:17
BobCD said:
As Turbobanana says, it's a cabover as in Cab Over Engine, as in 'cabover Pete with a reefer on and a jimmy haulin' hogs' from the song Convoy by C W McCall. The reefer, Google tells me, refers to a refrigerated semitrailer, not a jacket. The 'Pete' refers to Peterbilt who made two cabover models and the 'reefer on' means that the refrigeration motor was running and no, I'm not an expert, just looked it up on Google.
Indeed.Edited by BobCD on Monday 19th October 16:17
vs
spitfire-ian said:
BobCD said:
As Turbobanana says, it's a cabover as in Cab Over Engine, as in 'cabover Pete with a reefer on and a jimmy haulin' hogs' from the song Convoy by C W McCall. The reefer, Google tells me, refers to a refrigerated semitrailer, not a jacket. The 'Pete' refers to Peterbilt who made two cabover models and the 'reefer on' means that the refrigeration motor was running and no, I'm not an expert, just looked it up on Google.
Indeed.Edited by BobCD on Monday 19th October 16:17
vs
BobCD said:
As Turbobanana says, it's a cabover as in Cab Over Engine, as in 'cabover Pete with a reefer on and a jimmy haulin' hogs' from the song Convoy by C W McCall. The reefer, Google tells me, refers to a refrigerated semitrailer, not a jacket. The 'Pete' refers to Peterbilt who made two cabover models and the 'reefer on' means that the refrigeration motor was running and no, I'm not an expert, just looked it up on Google.
And don't forget the Jimmy (GMC truck).Edited by BobCD on Monday 19th October 16:17
All the Big Three did cabover trucks until the rule changes removed their market niche.
GMC did a short-wheelbase fifth-wheel version of its cabover truck, known as the Cannonball, for obvious reasons:
You could get them with a Detroit 6-71, which must have been quite brisk (and noisy!)
GMC did a short-wheelbase fifth-wheel version of its cabover truck, known as the Cannonball, for obvious reasons:
You could get them with a Detroit 6-71, which must have been quite brisk (and noisy!)
BobCD said:
Is the 6-71 the engine referred to in the GMC nickname Jimmy? The reason the GMC truck at the time was called a Jimmy was because it was a 'screaming Jimmy', the engine was a two-stroke diesel with a high engine note, hence the screaming bit. Enjoying this rabbit hole!
Yeah, Detroit was the automotive diesel division of GM, making a range of related 2-stroke Roots-blown diesels. All Detroits are "Screaming Jimmys" but the 6-71 was the most popular and widely fitted in all sorts of buses and trucks in America, both from GM marques and independents, so it in particular gets called that. Some of the big rigs came with the option of a 12V-71, so a V12 'Screaming Jimmy'.
As well as being 2-strokes (so they sound twice as fast as they're actually spinning), and 'blown' (and sometimes turbocharged as well), they also make most of their torque at relatively high rpm, hence why they have to 'scream' to get the best out of them:
Like this example of a GMC Cannonball with a rather fruity exhaust:
https://www.youtube.com/watch?v=cbx9aalrLI0
BobCD said:
Is the 6-71 the engine referred to in the GMC nickname Jimmy? The reason the GMC truck at the time was called a Jimmy was because it was a 'screaming Jimmy', the engine was a two-stroke diesel with a high engine note, hence the screaming bit. Enjoying this rabbit hole!
The exhaust fumes must have been horrendous!MC Bodge said:
The exhaust fumes must have been horrendous!
No more horrendous than any other old diesel (in fact, usually a bit better because the blower means there's always a good supply of air). Detroits (like most other 2-stroke diesels) aren't like your hedge-trimmer or British Seagull or Trabant engine. They don't mix their oil with their fuel and don't aspirate through their crankcases. They even have valves, albeit only on the exhaust side.
markymarkthree said:
BobCD said:
As Turbobanana says, it's a cabover as in Cab Over Engine, as in 'cabover Pete with a reefer on and a jimmy haulin' hogs' from the song Convoy by C W McCall. The reefer, Google tells me, refers to a refrigerated semitrailer, not a jacket. The 'Pete' refers to Peterbilt who made two cabover models and the 'reefer on' means that the refrigeration motor was running and no, I'm not an expert, just looked it up on Google.
And don't forget the Jimmy (GMC truck).Edited by BobCD on Monday 19th October 16:17
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