4M40 with a inline pump!

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1994delicaman
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4M40 with a inline pump!

Post by 1994delicaman » Tue Mar 19, 2013 5:34 pm

I was just wondering around the web when I came across this link, it got me thinking!
http://catson.en.hisupplier.com/product ... -assy.html
1991 Mercedes 350SD Turbo W126
1994 Nissan Safari WRGY60 TD42T
1997 Toyota Hiace camper 2.8l diesel
2000 Mitsubishi Pajero 3.2 direct injection
2006 smart car diesel CDI
2015 Mercedes GLK250 Bluetec
2018 KTM Superduke 1290 R

Dino
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Re: 4M40 with a inline pump!

Post by Dino » Wed Mar 20, 2013 7:14 pm

Cool! Looks like it saves a lot more space than what ours come with. Although I wonder if it can put out anywhere near the volume that the Bosch pumps can. I'd guess it's engineered for a static speed generator or something where the engine isn't being revved significantly, that or a small digger/CAT type vehicle.

Manitoba deli
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Re: 4M40 with a inline pump!

Post by Manitoba deli » Thu Mar 21, 2013 6:57 am

The inline pump on that engine will be a bosch, or produced under licensing from bosch. There are no Chinese clones for those yet. The inline design does have a longer life than the rotary design on our engines, but it still does require some lubrication from the fuel, and if you don't use an additive, you are sentencing it to a premature death. The only difference on an injection pump from an industrial application to an automotive application is the governor (sometimes they are the same) Industrial applications usually have a more sensitive governor, as rpm fluctuations are undesirable, and often not practical (voltage fluctuations in gensets). These injection pumps can be used in the automotive application, but often makes for an extremely touchy accelerator. People are often thrown off by the difference in hp ratings between industrial and automotive. The same 4M40 turbocharged and intercooled engine used in the industrial world is only rated at about 70hp. Ours is rated at closer to 130hp. Both engines can put out the same hp, but the industrial one is rated at a hp that will be utilized for 95% of it's life. It can peak at the same 130hp, but it can not produce that hp for 7,000hrs. An automotive engine is rated with useable hp for about 15% of it's usage. If you tried to get 130hp out of your 4M40 for an extended time, it would fail on you. This is why they don't put the 400+ hp diesels from one ton pick-ups into hi-way tractors requiring 400hp, the automotive diesels cannot sustain their peak hp for long periods of time. In short, the 4M40 in both automotive and industrial applications will put out the same power, but the advertised useable hp is rated differently. Seems like I used a lot of space to explain that, and it probably still isn't clear to some. I need to work on my communication skills.

Jason

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