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Ism Cummins ?
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sugarbeet
Posted 3/15/2011 13:22 (#1671598)
Subject: Ism Cummins ?



Anyone know anything about them as truck engines. Did my own little search and found out a little on them but not a lot. Doesn't sound like they're very common in trucks. 10.8 liter. Has EGR?(Can be unhooked but will leave check engine light on)? Anything to look for on them?
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bwire
Posted 3/15/2011 13:43 (#1671628 - in reply to #1671598)
Subject: RE: Ism Cummins ?


Rock County, MN

10.8 ISM formerly known as an M11 are found in many medium and large (class 8) trucks. Depending on gear train can net good fuel economy though seem a bit weak compared to other models; if you don'y mind slogging along getting better than average fuel economy it can be win-win.

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Stuie
Posted 3/15/2011 15:52 (#1671761 - in reply to #1671598)
Subject: Re: Ism Cummins ?



Genoa, Illinois
We have an ISM in our '01 Freightliner and it has been good to us. It was turned up to 410hp and with a 10-speed and a 3.90 rear end it moves pretty good loaded. Dad gets up to 7mpg hauling grain with it, although it is a bit less hauling out of the field in the fall. We have had to replace a few injectors since we got it in '07 but other than that it has been good. He likes it because he can haul 1000 bu of corn and be legal, while some of the guys he hauls with only get 950 bu legal. It isnt the most powerful engine out there, but it will get you a speeding ticket if you dont watch it. jmo. Eric
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sdan27
Posted 3/15/2011 16:25 (#1671793 - in reply to #1671598)
Subject: Re: Ism Cummins ?


I've seen a number of ISM engines in trucks. For those cargo companies that don't haul large enough loads to justify the cost of a larger engine they work pretty well. We bought an '02 IH 9200i from a local grain company with a 370 horse ISM. For what we use it for, short hauls and getting in and out of field, it would be better if it were geared a little lower. Ours is old enough that it does not have an EGR system but the newer ones will. Ours has about 740,000 miles and 24,000 hours on it and still runs real well. It was a little rough when we got it but I simply adjusted the valves and injectors and that made a ton of difference in how well it ran and even the power it had for pulling. Also had to get the turbo resealed as it must have had a seal out and was blowing out quite a bit of oil but that can be expected with any high mileage application I would think. I do about 600 hour oil changes on it and oil analysis shows little actual wear still.
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Pofarmer
Posted 3/15/2011 17:33 (#1671886 - in reply to #1671598)
Subject: Re: Ism Cummins ?



As stated previously, not all of them will have EGR and all the goodies. Depends on the year. We have a ISM 425 hp in our 2000 385 Pete, and it is a ball to drive weighng 50,000. There a re quite a few of them running around here hauling grain.
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earp
Posted 3/15/2011 17:45 (#1671901 - in reply to #1671886)
Subject: Re: Ism Cummins ?



Manila, Ar
i got one in 00 freight shaker.................we love it
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tommyw-5088
Posted 3/15/2011 18:12 (#1671934 - in reply to #1671901)
Subject: Re: Ism Cummins ?


Central Texas
Okay until it pukes a head or cam ,In our experence they make up the fuel economy with oil use .

We hate them at the shop ,The underside of everyone is an oil slick .

About 1/10 as good an engine as a series 60 detroit ,or n-14 cummins .
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sugarbeet
Posted 3/15/2011 18:24 (#1671949 - in reply to #1671934)
Subject: Re: Ism Cummins ?



I know nothing about the egr(so where do I look for it)? Is the ism considered a small or big block.
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Whatadeal
Posted 3/15/2011 19:28 (#1672038 - in reply to #1671934)
Subject: Re: Ism Cummins ?


central Iowa
Tommy, you made my day! I've got one truck with a 60 series and one with a N14.
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Red/Green
Posted 3/15/2011 20:41 (#1672166 - in reply to #1672038)
Subject: Re: Ism Cummins ?


Elizabethtown,KY
I have one in a 2005 Pete with a 20' bed and hoist, 400 hp and 10 speed, good on fuel and good power as well.
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Dirt Digger
Posted 3/15/2011 20:44 (#1672174 - in reply to #1671949)
Subject: Re: Ism Cummins ?



wcoh
The ISM I think would be considered a medium block, as the ISX is the big block
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tommyw-5088
Posted 3/15/2011 21:51 (#1672367 - in reply to #1672038)
Subject: Re: Ism Cummins ?


Central Texas
Whatadeal - 3/15/2011 19:28

Tommy, you made my day! I've got one truck with a 60 series and one with a N14.


25 years working on trucks ,you learn what is junk ,what is not ...........:)

F.---- a m-11/ism :oil slinging whore" is what we call em .

Work on one in an IH day cab ,then you will be cussing .
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8130JD
Posted 3/15/2011 22:18 (#1672447 - in reply to #1672367)
Subject: Re: Ism Cummins ?



central ILL
All depends how you run them. If you run them foot to the floor all the time they will start leaking oil. But if you run them with some common sense they do fine. We can avg. around 7 mpg. N-14 is a better motor but nothing wrong with the ISM.
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silverluv75
Posted 3/15/2011 23:37 (#1672654 - in reply to #1672447)
Subject: Re: Ism Cummins ?


When you say they sling oil, is it that they leak oil or puke alot out the blowby tube. I have one in a 2000 Kenworth and it seems like it has alot of blow-by. Is this normal or is she just wore out?
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sdan27
Posted 3/16/2011 22:26 (#1674268 - in reply to #1671598)
Subject: Re: Ism Cummins ?


The most obvious thing, if its an EGR engine is on the exhaust manifold, it will have a long u-shaped tube with a portion of it being flex pipe that goes up into an EGR valve which is near the front of the engine.
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