redstroke

1256 Cummins Conversion

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There are a couple archived threads on here with some small pics. Gonna post up my project here with bigger pics to help others and hopefully get some of the other conversion guys to throw in what they have found to work. The below two have both done conversions.

andrewn269 856_6BT

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Bought it not running motor had broke cam possibly.

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Eric helping me out with the tear down.

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Me removing cab.

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Ready to pull motor

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Got it down to see if clutch was worth reusing. It looked like it had just been replaced. Had 12 spring pressure plate as well.

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Getting motor in.

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Notched rail to clear front cover on cummins.

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Parts bought from Link

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Front mounts

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Motor in.

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Clearance on fuel tank and heat shroud needed to miss back of head

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Now for correct fan hub, spacer, and fan, coolant elbows on motor, turbo / manifold options. fuel tank support, air filter support, throttle cable

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Looks like a great start to a cool project. That should be really fun once its done.

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Please don't throw the 407 away! If you have parts to sell from it let me know!

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That's no lie, not sure where you're located, but I'd buy that takeout DT407 from ya!

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Redstroke,don't mount that fuel tank till ya have a manifold. Would show ya mine but can't post pics on here.

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I am curious about the wideth on the plate you have pictured, looks a lot like the plate for a 66 or 86 series tractor. Not familiar with the plates Link sells but I think you will find its an inch wider on each side than your bell housing. If its not too much trouble let me know the wideth on that one.

thanks

ed

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Ed,

Yes it is for a 66 or 86 series as well. It does stick out on a 56 series.

As far as I am concerned your plate has this one beat because of that. Didn't you guys work with Link at some point when you developed your plates?

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We didn't work with him, in fact we only started doing this after we heard they had quit. At that time they built a welded together piece that was a bit cobbled up and didn't have much precision about it. I heard they had quit and when I went shopping for flywheels and one outfit said they had about some laying there that had been built for Link and they weren't sure what was happening, Shortly after that, we started advertising ours around the country and I sold one to a guy in Mn.. And then I heard they had one that looked a lot like ours. Not sure if they bought and copied or not. But, I am curious how they are pricing their kit. And if you wanted to I am sure you can cut the outer edge down to the correct bell pattern. I looked at that picture a couple times and was trying to figure out if we shipped one incorrectly and then noticed a few differences and finally noticed the name under your picture. All in all tho I am sure you will like the outcome with that engine!!
Any way, If we can help let me know
and thanks for the compliment
ed

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Ed leahman sells them nice guy, talked breifly with him about a 3.3 qsb into a 656

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We are not supposed to sell here so I need to be careful in what I put out. But we have been making the plates for about 6 years, pretty well have the plates and flywheels and front mounts

for the Cummins and the IH 300 and 400 series figured out and available into most all of the popular tractor models. Some info can be found on E/bay and we put an add or two in the Red Power Mag every once and a while. Our website is in dire need of updating and i am working at that this month. Send me a PM or a phone number and i will be glad to tell you about the options. The biggest hurdle we are trying to over come is lead time on production and which inventory to keep in stock, Our builder just put in a new CNC machine and things should speed up a bit. We also build a plate for a couple of the older IH crawlers and the plates for the AC tractors for cummins install.

thanks

ed

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A couple of the different manifolds i have been trying.

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couple different turbo options

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I am going to use these to space the manifold away from the head so turbo will clear injection lines. also going to use a 2" spacer between turbo and manifold to get the air cleaner outlet closer to comp inlet.

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Mock Up

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New 826 radiator to get the lower outlet on the right side of tractor

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how IH did it.

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Never knew there were so many fan hubs. One from a bluebird bus works about perfect.

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more mock up.

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Question of the day for you guys. Any reason why i cant support the fuel tank right behind the adapter plate from the bottom side, instead of up at the front of the tank? i would be using the same weld seem just under the tank instead of in the front of it. Keeps the brackets off motor giving more room for turbo piping. Thoughts please?

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I am sure you can support it that way, I think i would try to get front as far as you can with one cross bolt and put a second about four inches back,

Sandwich it with a one peice plate on each side so that the load is spread out a little. and not just riding on the shaft of the bolt.

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Thanks Ed, I was hoping it would support ok and not collapse the bottom of the tank.

Some more of my exhaust / turbo parts came in.

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Question of the day for you guys. Any reason why i cant support the fuel tank right behind the adapter plate from the bottom side, instead of up at the front of the tank? i would be using the same weld seem just under the tank instead of in the front of it. Keeps the brackets off motor giving more room for turbo piping. Thoughts please?

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Yes that is how I mounted the tank on my 1406 project. I used a flat plate and bolted to the two bolt holes on top of the clutch housing. The two vertical pieces welded on top of the plate on each side of the seam. There was plenty of room to drill two 3/8's holes through the vertical pieces and seam but below the seam weld. It also looks like you have the same issue that I had with the fuel tank and exhaust outlet. I basically cut a notch out of the tank by cutting across in front of the hood bracket and about an inch away and along the tank seam. Then filled the void with some flat steel.

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What exhaust manifold are u using I am also doing a conversion the dodge manifold on mine seems to stick out the side a little more than I like

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Thanks Ed and IHBRAD i am gonna go ahead and go that route on the tank, thanks for input.

What exhaust manifold are u using I am also doing a conversion the dodge manifold on mine seems to stick out the side a little more than I like

This is the manifold, came on some industrial applications and RV's i guess.

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Also the intake . Plate on your engine can be flipped around and it will go straight over to turbo with a . Slight spacer under the air horn I learned the non intercooler dodges are like that just use flat plugs were sensors were just was easy for me not trying to tell u how to little things can help on projects like these

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Question for you guys. Anyone know the compressor inducer diameter on a Case IH 1896,2096,5140,5240,5250 ?

I have a H1C with a 54mm comp inducer and a HX35 with a 56mm comp inducer. I can run either a 12 or 14cm housing on the turbine side. Trying to decide what combo to run.

For now I am just putting a 3200 gov spring in pump and turning up the screw. I can add a fuel pin later but want this to be reliable, not sure if i should turn it up past 160 hp without an intercooler. Guess EGT gauge will tell me at a later date.

Plow boy the intake is already as far forward as it would go flipping or not.

Fuel Tank Mount (thanks for ideas guys)

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Ended up buying a lighter fan and spacers from Flex-lite Moved shroud down .5" and fan fits well with 4" spacer and blue bird bus fan hub. Also MX-135 lower rad hose and a 2 1/8" to 2" reducer for rad hose fit with no modifications! First piece on this that hasn't required any.. lol

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Pulled off the injection pump and resealed all the old o-rings, stock head bolts were at 110-115 ft lbs they all came out 1 at a time moly lube and started at 105 at 5 ft lb increments they made it to 135 ft lbs before they felt like they were starting to overly stretch so left them there. Then set valve lash at .010" and .020"

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So far this is the best turbo configuration I have come up with.

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Someone help me on turbo specs! thx Adam

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