bbigrig Posted June 20, 2018 Share Posted June 20, 2018 (edited) I wish the engines would just get simpler to work on and maintain.... I was able to get some pictures of the only MP8HE engine coming down the grooming line at the Macungie plant on Saturday. For those that don't know, this is the engine option where the wasted heat energy from the turbo has a drive coupling back to the timing gears, producing more power and torque to the flywheel. They had to redesign the cab mounts and shave the RS cab mount plate just to get this thing under the cab. I will let time and the marketplace determine if this engine option is a success or not. I'm not looking forward to having to work on it when the time comes. The Volvo version which I've only seen 2 in use so far, has a little more room to work on. Edited June 20, 2018 by bbigrig Quote Link to comment Share on other sites More sharing options...
bbigrig Posted June 20, 2018 Author Share Posted June 20, 2018 Quote Link to comment Share on other sites More sharing options...
Lmackattack Posted June 20, 2018 Share Posted June 20, 2018 reminds me of the Maxxforce engine when they Unveiled it at Con Expo las Vegas. I laughed thinking that I could not even see the block with all the crap they bolted to it 1 Quote Link to comment Share on other sites More sharing options...
fjh Posted June 21, 2018 Share Posted June 21, 2018 I like IT! Get rid of the piece of crap bolted to the back of the turbo And now you got an EGR Valve that's easily accessible you can actually see what your working on Beauty ! Oh you say you can only buy it with the crap behind the turbo? Dam! 1 Quote Link to comment Share on other sites More sharing options...
BC Mack Posted June 21, 2018 Share Posted June 21, 2018 what's old is new again..... power recovery turbines were used by Curtiss Wright on their radial aircraft engine the R-3350... used primarily on the Douglas DC-7 and Lockheed Super Constellation airliners, three PRT's used exhaust flow to transfer power to the crankshaft raising power from about 2800hp up to 3500hp.... recent adaptations in air racing with nitrous has seen 4500hp... and no EGR valve...!!! BC Mack 1 Quote Link to comment Share on other sites More sharing options...
kscarbel2 Posted June 21, 2018 Share Posted June 21, 2018 Scania introduced turbo compounding 27 years ago in 1991. Quote Link to comment Share on other sites More sharing options...
Oso2 Posted July 27, 2018 Share Posted July 27, 2018 On 6/20/2018 at 4:01 PM, bbigrig said: I wish the engines would just get simpler to work on and maintain.... And I wish that fuel was unlimited and 10c a gallon, and that diesel engines sprewed out unicorn dust and rainbows out the exhaust - but we all know that's not going to happen. Actually capturing waste heat is a really interesting idea. Everything from light bulbs to engines are inefficient in that most of the energy produced is waste heat. If they can figure out how to recapture that energy it might really improve fuel economy. BTW, I read about a local hotel that captures the waste heat of the water that goes down their drain. Quote Link to comment Share on other sites More sharing options...
Popular Post bbigrig Posted July 29, 2018 Author Popular Post Share Posted July 29, 2018 (edited) On 7/27/2018 at 1:02 AM, Oso2 said: And I wish that fuel was unlimited and 10c a gallon, and that diesel engines sprewed out unicorn dust and rainbows out the exhaust - but we all know that's not going to happen. Actually capturing waste heat is a really interesting idea. Everything from light bulbs to engines are inefficient in that most of the energy produced is waste heat. If they can figure out how to recapture that energy it might really improve fuel economy. BTW, I read about a local hotel that captures the waste heat of the water that goes down their drain. Your comments would have more gravity to them if you owned or worked on trucks with newer, more expensive and less reliable technology. I've followed your comments on Hanks for years. I have always found you perceptive and articulate from a certain point of view, but miss the view from many other sides. Holding the bag on costly technology has cut into profits and customer satisfaction for truck owners and shops alike. I've seen lots of tech come and go on trucks in the last 30 years. This HE engine setup will be more expensive to repair on the passenger side of the engine. Anyone who knows these engines is aware of the amount of work that gets done there for both Volvo and Mack on that side. Heat rejection has always been an issue on these engines. With this design, heat will be held longer, have more parts to fail and for a small gain in HP and TQ. These systems were also designed to be mounted on European COE trucks. The entire set up is under the cab and very hard to get at. Both Volvo and Mack had to augment the cab structure and cab mounts to fit it in. Thankfully at our dealer, only one customer has been ordering them on their new VNLs. None on Anthems. There is such a thing as reaching the pinnacle of efficiency and cost effectiveness within a product offering. Our South American friends with brand new Anthems and zero Emission MP engines are much better off in all segments of efficiency and cost effectiveness. Those engines will last longer due to no EGR and far more miles between breakdowns. It's not about advancements for you to read about in Truck news next week.... It's about building a product that manufacturers can be proud of, fleet owners can rely on and people like you can have jobs turning out miles making money for everyone. Rather then being high tech, stuck in the shop for weeks costing the owners their house and livelihood. I have personally seen a small fleet in which 2 of his 2016 trucks are sitting in the back yard of the shop because the customer can't afford the $16k worth of technology advanced repair bills for the 2 rigs. They have been sitting there for 3 months now. None of the repairs are covered by warranty and are after treatment related. Not main powertrain. Turns out unicorn dust and rainbows come off the same assembly line. As an example whats available to the export market versus what we can order here in N.A. Problem is, it's out of reach for people/customers/mechanics like us that want a more reliable product to produce profits for all. Edited July 31, 2018 by bbigrig 2 2 Quote Link to comment Share on other sites More sharing options...
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