617 Fuel burn Rate at Idle - Mercedes-Benz Forum
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#1 (permalink) Old 12-03-2009, 09:55 AM
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617 Fuel burn Rate at Idle

Hi All,
I'm considering using a 617 engine in a stationary application.

Has anyone come across data as to how much fuel these engine burn per hour at 750RPM Idle?

Does anyone have links to using 617s as stationary power sources?

Thanks,

Joseph
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#2 (permalink) Old 12-03-2009, 10:37 AM
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Originally Posted by jkubica View Post
Hi All,
I'm considering using a 617 engine in a stationary application.

Has anyone come across data as to how much fuel these engine burn per hour at 750RPM Idle?

Does anyone have links to using 617s as stationary power sources?

Thanks,

Joseph
If the engine is going to idle enough of the time for you to worry about it, IMO you are going to be idling it way too much.
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#3 (permalink) Old 12-03-2009, 10:56 AM
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The Governors on the Auto Engines are not set up for a Gen Set.

Find yourself an old Mercedes powered Thermo King. They were used to power Refrigerated Containers.
It will already have a Generator on it; and of course the corret Fuel Injection Pump with the correct Governor; and if I remember correctly put out AC 220-240 Volts.
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#4 (permalink) Old 12-03-2009, 11:17 AM
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that's a great idea. I assume the original OP is interested in making a diesel generator- maybe not. I have considered finding a rusty 240d for that purpose, but i'll keep my eye out for a thermo king. Every delivery truck in this area was that format 15-20 years ago. There should many in junkyards.

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#5 (permalink) Old 12-03-2009, 05:15 PM
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I read that it's possible to rig up a governor for stationary applications with the auto engines. You can't run it at idle though, it's supposed to run at something like 3800.
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#6 (permalink) Old 12-03-2009, 05:17 PM
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#7 (permalink) Old 12-03-2009, 05:27 PM
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You should be able to crank down the high idle spring (max rpm) in the governor to where its limited to a low RPM.
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#8 (permalink) Old 12-04-2009, 01:19 PM
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Diesels use about 5% of the HP per hour in fuel. You cant idle a diesel for ever or it will be a gummed up pile of poo in short order, it needs to be loaded enough to keep the oil temp near 200 degrees and the carbon burnt out. On boats that are going slow of trolling we have to run them at full throttle every hour for 5 minutes to clean them out.

Dan

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#9 (permalink) Old 12-04-2009, 01:55 PM
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Diesels use about 5% of the HP per hour in fuel. You cant idle a diesel for ever or it will be a gummed up pile of poo in short order, it needs to be loaded enough to keep the oil temp near 200 degrees and the carbon burnt out. On boats that are going slow of trolling we have to run them at full throttle every hour for 5 minutes to clean them out.

Dan
Hi
I'm unclear just what you mean here. How much fuel would a 100HP engine use in an hour?
Joseph
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#10 (permalink) Old 12-04-2009, 03:48 PM
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Carbed gas engines burn right at 10% of the HP used per hour or lets say 9 gph for a 90hp outboard at full throtthe, EFI gas engines use about 8% and mechanically injected diesels use about 5% per hour or 5 gph for a 100 hp engines. The new digital diesels use slightly less.

Dan

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