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andrewn269

856 Cummins conversion

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post-1674-1261622849_thumb.jpgpost-1674-1261622861_thumb.jpgpost-1674-1261622871_thumb.jpgpost-1674-1261622897_thumb.jpgTractor sat in the shop all summer finally got some time to work on it a few more little details and i should have it done. Only big thing left to figure out is a tachometer drive.

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Wow that looks like a great install..the Cummins is a great engine! but what happend to the original 407?

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Split it to put a IPTO shaft and clutch in it and found the head gasket leaking so figured id replace it and ended up finding a cracked sleeve. Tractor has 10227hours on it have wanted to do a conversion since i saw a picture of one years ago in a farm magazine always thought id find a gasser and convert it but guess this one will work. It was bought new in 67-68 and is a custom.post-1674-1261624090_thumb.jpgpost-1674-1261624113_thumb.jpg

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looks good, what yr of Cummins is that, 90s 12 valve?

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Was just guessing on the year, was a few years before my time. Asked my uncle today and he said he paid $7200 for it new in 69 and I think he said that that included $500 for 12ply 18.4x28 tires. The engine was out of an 89 pickup tag says its 160hp @ 2500RPMs should make a great silage blower tractor, wont be use for any tillage work just mainly a haying tractor.

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nice job looks great been wanting to do one myself.

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Was just guessing on the year, was a few years before my time. Asked my uncle today and he said he paid $7200 for it new in 69 and I think he said that that included $500 for 12ply 18.4x28 tires. The engine was out of an 89 pickup tag says its 160hp @ 2500RPMs should make a great silage blower tractor, wont be use for any tillage work just mainly a haying tractor.

That price sounds about right. In 1970 Dad gave $10,000 for an 856, disc, plow, and 4 row planter.

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Only big thing left to figure out is a tachometer drive.

Look into an alternator signal driven tach or a magnetic pick-up type of tach. Someone like VDO or Stewart-Warner should make a tach that will fit in the 856 5" or so hole in the dash and use an electric signal.

If you are looking for OE tach look, then I'm not sure how to drive the IH tach off a cummins

karl f

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You can get one from cat, its digital readout, the only down fall is youll have to know what engine rpm your pto speed is at because it wont show.

My buddy put one on his 1256, when he was going to turn it into a pulling tractor, he has since decided not to pull with it, but kept the tac anyway, he has gotten used to where to set his rpms for the mower and baler. It fits perfect in the factory hole.

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put a 94 and up exhaust housing on that turbo. the stock 16 ccm housing does not give near the low end boost as the 94 and up 12ccm housing. it is a tractor. put the housing on so you can use its low torque.

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for what it's worth you can get an equipment exhaust manifold that would allow you to have the turbo tucked up under the sheetmetal.

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Did you use an adapter kit like Leaman's sell or did you make your own?

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nice job looks great been wanting to do one myself.

Tony ,

when you get ready we have a deal for you!

ed

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I got the tach figured out had to add a transducer and use an electric tach. As for getting the turbo under the hood I found a different manifold but didnt want to completely rework everything under the hood so will leave the turbo hanging on the side. Yes it is a plate and flywheel from Ed.

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A few more pics. Had it running and it ran great except for the fact that when I started it I noticed a little puff of smoke out of the temp sender hole so had to split it again to put a head gasket on it but rather now than later.

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Looks good . What's the serial # ? After the numbers it will have CU stamped for the custom . Mines's 24768 B) .

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I got the tach figured out had to add a transducer and use an electric tach. As for getting the turbo under the hood I found a different manifold but didnt want to completely rework everything under the hood so will leave the turbo hanging on the side. Yes it is a plate and flywheel from Ed.

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I thought it looked like ours! thanks for the opportunity!

ed

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Heres some pictures of the front mounts the second picture shows where I had to notch the frame to clear the front cover. The last picture shows what started the project, happened while blowing corn silage. As for the serial number I need to recheck but I think it is 21503 and it is stamped with a CU

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for what it's worth you can get an equipment exhaust manifold that would allow you to have the turbo tucked up under the sheetmetal.

Looking to revive this thread with some info and a question on recent 856 repower we completed.

We put a first generation 5.9 Cummins in our 856 this past spring.

Engine came out of an '89 Dodge utility truck with 45K on it.

I'm looking to shove the turbo and exhaust back up under the hood and am having a hard time finding an equipment manifold.

Any help?

(Photos attached)

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I think you will have to shorten your fuel tank a bit, (where it goes front over the engine). The manifold from a 5140 maxum should work and they are not too high priced either. There may be other manifold applications available as well.

ed

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I think you will have to shorten your fuel tank a bit, (where it goes front over the engine). The manifold from a 5140 maxum should work and they are not too high priced either. There may be other manifold applications available as well.

ed

Thanks Ed,

Found a few Case IH dealers (Hoober and Messick) selling that manifold new for around $420 (part# J931747).

I'd rather find a rusty one somewhere for a little cheaper, but no luck yet.

Looks like any tractor or construction equipment with a Cummins 6T590 would fit the bill.

Several models of Case backhoes have that powerplant.

Would the fuel tank need to be modified if I were to keep the muffler outside the hood, or just if I use a Maxxum-style under-the-hood muffler?

Fion

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