GMC Truck Action Theatre: Truck Power - The 6.2 Diesel 1983 GM-258-B Dealer Training LaserDisc

Рет қаралды 4,721

Күн бұрын

A brief overview of the 6.2 liter diesel engine used in pickups, SUVs, light-duty chassis cabs, RVs, and vans. Covers the basic differences between gas and diesel engines, operating theory, special engineering features to promote durability of the 6.2, and water filtration systems.
Recorded from side B of 1983 DiscoVision disc GM-258-B.

Пікірлер: 36

@mariolarouche5318 Ай бұрын

He nevver mentioned the ENCABULATOR😅

@mikes-wv3em Ай бұрын

turboencabulator!

@M8Stealth Ай бұрын

Amazing how they eliminated side fumbling with the ambifacient lunar waneshaft.

@michaelatkins9780 Ай бұрын

My hair literally moved when reading comment...

@littlesquirtthefireengine5478 27 күн бұрын

@@michaelatkins9780 You should probably have a doctor check that out

@michellatour150 Ай бұрын

Late 1970's - 1980's, the 'good old days' for us generation X'ers!

@edwardpate6128 Ай бұрын

Not as good as it was for us late Boomers!

@RogerHolley Ай бұрын

I had an 83 6.2. It did a good job for me. 29 mpg on hwy. only problem was rebuilding the injector pump a couple of times. I sold it with 350,000 miles and still running strong.

@jaakkoiswatching6437 Ай бұрын

A 6.2 diesel idling is music to my ears.

@odelldickey2218 Ай бұрын

I had a 1992 GMC C 1500 pickup with a 6.2 diesel, a very reliable and fuel efficient machine.

@chargermopar Ай бұрын

i wish someone had a video explaining the 7.3 and 6.9, similar engine!

@Texassince1836 Ай бұрын

IDI V8 Diesel with a DB2 injection pump. 5.7 6.2 6.9 7.3 all more simular than different.

@michaelbulkley9141 Ай бұрын

Great video! Thanks for posting it. I noticed that during the compression stroke, the air temperature can reach up to 1000 degrees (3:40), and unpressurized diesel fuel ignites at 150 degrees (6:19). I'm curious, why do we still need a glow plug to warm the air during cold starts? Won't the compressed air already be well above 150 degrees during cold starts?

@grabasandwich Ай бұрын

Many of these 6.2s ended up with burnt out glow plugs, I think due to a bad controller keeping them on too long. Once that happened, they were nearly impossible to start without a ton of cranking.

@PistonAvatarGuy Ай бұрын

@@grabasandwich The controllers would often fail as well.

@Leemur2335 Ай бұрын

That portion of the video was poorly explained. 150°F is near the flash point of Diesel fuel, which means you could ignite it with a spark or open flame like gasoline at that temperature. Diesel engines utilize autoignition, which means the fuel must be heated beyond its autoignition temperature for combustion to occur (over 400°F for Diesel fuel).

@Dieselolds Ай бұрын

The fuel is not injected into the hottest part of compression but into a pre chamber with a glow plug. The bottom of pre chamber is like a lid with a hole and it gets very hot and keep the combustion going when the engine is running. Old diesels also have weak injections and needs heat to atomize the fuel to make it a easy to burn vapor. Many modern diesels are high pressure direct injection straight into the cylinder and starts without glow plugs unless its very cold.

@hank1556 Ай бұрын

Im ex military. I can hear this engine in my sleep rar rar rar rar rar rar...

@misterhipster9509 18 күн бұрын

Have a mechanically restored 85 K-10 w/NEW Banks kit turbo, new red paint, interior, wheels, tires rust free western truck w/90k original miles on the chassis. It's like a new truck. It could be yours.

@terrellscaife2411 Ай бұрын

So where did you find these videos?

@tylerkramka 28 күн бұрын

The GM ones were left in a former dealer service building.

@michaelatkins9780 Ай бұрын

Oh, that was on purpose? There will be a hole on the other side of that piston soon...

@workhorse401 Ай бұрын

All this and yet it still failed catastrophically

@bigblocklawyer Ай бұрын

And yet when lives literally depended on reliability and durability, hundreds of thousands of HMMWVs served extraordinarily well with GM diesels, smoking countless camels in the most extreme environment on earth. Must have been some reason they didn't use furds.

@workhorse401 Ай бұрын

@@bigblocklawyer I have a 6.5 in a box truck at my company. She’s loud and poor on fuel economy but she starts and runs every damn day. Southern New England doesn’t get that cold and so far the van starts as low as 35 degrees (knocks on wood) at 320k miles

@PistonAvatarGuy Ай бұрын

@@bigblocklawyer They didn't use Fords because AM General was the lowest bidder. I can't even find any evidence that Ford submitted a proposal for the HMMWV (they were building the MUTT at the time). I also had a friend in high school whose brother was in the military and worked on humvees, he was always talking about how they were junk. In off roading magazines, too, they would write about all of the problems that surplus humvess had. They just weren't that great (they're really cool vehicles, their build quality is just extremely poor). The stories of 6.2s and 6.5s that made it past 200k miles seem to be the exceptions, rather than what was typical. There's a reason why GM went to Isuzu for a good, reliable diesel engine.

@PistonAvatarGuy Ай бұрын

@@bigblocklawyer Just found this: "In June 1983, a Pentagon report noted the vehicle's "very low" reliability, averaging 370 miles between failures."

@MrSpartanPaul Ай бұрын

4 spd manual overdrive??? Also never got the 4 spd automatic overdrive, maybe later versions did?

@jason_l5p 24 күн бұрын

this thing was such a gutless piece of junk. GM should have just beat dodge to the B series Cummins, or had detroit make a mini 60 series.

@tylerkramka 20 күн бұрын

From 97-04 they rebranded the T444e as the Series 30 and DT466/DT530 as the Series 40. Shame they were only sold in motor coaches/buses, they probably would have done well in the light and medium truck market.