2020 lexion - Page 27 - The Combine Forum
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post #261 of 329 (permalink) Old 08-05-2019, 04:35 PM
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No Problem. My next chance will be at the Farm Progress Show (end of Aug), likely.


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post #262 of 329 (permalink) Old 08-05-2019, 06:52 PM
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I saw enough Mercedes engines in bush equipment and a grand Cherokee I own. Very good engine until you need parts. I remember 15 yrs ago an $1800 alternator stopped production and availability was almost non existant. When I bought my Grand Cherokee the selling feature was the Mercedes 3.0. So light and efficient. Until the oil cooler sprung a leak which takes a light yr to get at under all the junk sitting on top of the engine. How exactly can you call an oil cooler a cooler with placing it in the valley of the engine on top with a glowing shielded in turbo 8" away. Turbo had some issues as well, and for no reason other than a poor design keeping the heat trapped.
The inline 6 Mercedes they use in the combine is pretty much the same as the Detroit engine they use in trucks. Parts arenít too hard to get for them.

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post #263 of 329 (permalink) Old 08-05-2019, 07:42 PM
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Yes, 4WD.

Question for you. How can it be 4WD when you only have two wheels on it??!! lol

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post #264 of 329 (permalink) Old 08-05-2019, 07:44 PM
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Question for you. How can it be 4WD when you only have two wheels on it??!! lol
Ha ha, that actually crossed my mind, thought Iíd take a chance!
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post #265 of 329 (permalink) Old 08-05-2019, 09:37 PM
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Maybe tracks are metric wheels?
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post #266 of 329 (permalink) Old 08-05-2019, 10:11 PM
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3508 Cat Gen Set with 80,000 hrs

We have owned several 3508 Cat gen sets and work on them several times a year.
We have never seen a 3508 last that long. More like 25,000 hrs if lucky. Generally they are rated 1200 Hp @ 1800 rpm and some have been brought up to 1500 HP but you will see them make vents in the blocks more frequently at the higher HP range.
The engine that we are impressed with is the 1200 HP range is the Cummins QSK23. This engine was derived from a Komatsu in a joint venture between the two companies. We have several in the 13,000 hr range and they have performed flawlessly. Burn one gallon of oil between oil changes.
The 23 liter Cummins seems to do everything the 34 liter 3508 will do in the 1200 hp range.

Both are too big to fit on a combine IMO.
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post #267 of 329 (permalink) Old 08-05-2019, 10:22 PM
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We have have a couple of the 5 cylinder 1600 series MTU and they have performed well. Rated 450hp @ 1800rpm. Problem is lack of support in the US. Detroit Diesel does not seem to support them very well.
There are no after market oil and fuel filters that we have been able to find. Consequently one has to buy the filters at DD dealer at about $80 each. The 1600 series small block engines are built up in V8 , V12 and possible V16 but lack of support from DD caused us not to purchase any other than the 6 cyl units. Our customers would kill us because of the lack of support.
These units are small enough for AG application.
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post #268 of 329 (permalink) Old 08-05-2019, 10:32 PM
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We have owned many 3412/C27 Cat engines and they are fuel hogs. They are heavy compared to the MTU engines. They are not a modern engine with single head on each side vs each cylinder having an individual head like the MTU and the big bore 3500 series of CAT.

I like inline englnes but the V engines are cheaper to build, weigh less and more compact for mobile HP so that is prob what will be installed in ag equip.
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post #269 of 329 (permalink) Old 08-06-2019, 12:00 AM
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Maybe tracks are metric wheels?
They are 890 mm wide.
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post #270 of 329 (permalink) Old 08-06-2019, 12:19 AM
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We have have a couple of the 5 cylinder 1600 series MTU and they have performed well. Rated 450hp @ 1800rpm. Problem is lack of support in the US. Detroit Diesel does not seem to support them very well.
There are no after market oil and fuel filters that we have been able to find. Consequently one has to buy the filters at DD dealer at about $80 each.
$80 might be the cheaper than any oil filter on a major AG piece these days, although still too expensive I agree.

Also found out today that high speed rotors are only on the 8800 model in NA. Similar to current arrangement where 780 is only model with the high speed rotors.


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