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    “The 6.9” project thread

    The last cummins I had to R&R you had to remove the valve cover and both rear rockers to squeeze the engine out from underneath the cowl. So much for assembling a clean engine on the stand and then installing it. I'm sure I missed a few bits of the firewall/cowl insulation after I scraped the...
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    “The 6.9” project thread

    I've never seen any of those guys refer to their truck as a dodge(or ram) when they talk about it. It's always cummins or hemi. The entire value of the truck rests solely on the engine with those guys.
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    parallel turbos

    Your passenger side drain might work if the ID of the hose is big enough, I can't tell the size from the picture. I think it's supposed to be 12an minimum. The driver's side I have my doubts with that 90 in there. You might want to rethink that or risk flooding the turbo. They're gravity...
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    Dreaded ATS OEM Turbo Up-pipe slip joint leak has killed my boost 2022 edition.

    Bummer. I imagine the loose gap, thermal expansion, and pressure was just too much. There are a host of other products you can try, like loctite mr2000, but unfortunately they're all expensive and would likely not fair any better. One of the more hillbilly things I thought of doing was using...
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    7.3 idi with 6.2 Detroit governor spring install

    Bad timing, as in pump timing? Yeah, no, your pushrod didn't bend because of that............ Valve timing, absolutely possible. As others have said, valve to piston clearance in an idi is very small. There's really no room for error on that IMO. If you decide to proceed, do so with caution...
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    6.9 in a bus needs radiator. Upgrades?

    I've got a feeling this thread is bad for me, I'm getting 2nd thoughts on selling and finishing it out instead lol
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    6.9 in a bus needs radiator. Upgrades?

    That's correct. Studs would probably be your best bet then. My thought was if I'm going to stud it, I might as well stud the spare 7.3 and run that then. Then I'd be good with any boost a stock pump could make. RnD also ran a test on headbolts and breakage, and surprisingly the 6.9 bolts did...
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    6.9 in a bus needs radiator. Upgrades?

    I thought the tp38 would be good too. People rave in the trucks when going NA to Turbo, even if they get 5-10 psi out of it. I figured 15 and a maxed pump and I would be more then pleased. Truthfully, I was going to max the pump to whatever the pyro said I could run, and let the boost # lie...
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    6.9 in a bus needs radiator. Upgrades?

    On flat ground I can get mine to 70 after a couple miles, foot to the floor, on the governor @ 3500 rpm. All naturally aspirated. I honestly could probably do better if the gearing were better, but I'm not going to, at least not without a turbo, intercooler, and better transmission. On a 6.9...
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    6.9 in a bus needs radiator. Upgrades?

    As much as I could get. Plan was to max a stock IP. I was on the fence about switching to arp studs. If I kept the bolts, I'd just max the stocker and let it go until/if it blew the gaskets. If I upgraded pumps, I feel you'd have to install studs. If I'm going to install studs, I might as well...
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    6.9 in a bus needs radiator. Upgrades?

    You came to the same conclusion that I did. I just didn't feel comfortable with a 1st gear that steep. Which is why I was leaning towards a 2 speed or aux trans. I could leave it in low or direct for around town, then shift it into high or OD when on the interstate. I had no intentions of...
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    6.9 in a bus needs radiator. Upgrades?

    I think the lever on the pump is the same. At least the 2 IH engines that I have, have the same throttle lever that I've seen on ford trucks. The pump/engine in the bus is a 3500 rpm unit, not the 2500 rpm that I'm told would have been stock. If he's got a 2500 rpm governor, he wouldn't get up...
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    6.9 in a bus needs radiator. Upgrades?

    I wouldn't call it insurmountable either. But I just don't think that's the route I would take. A bus like this is at least 15k lbs empty. I know there are guys who run a truck/trailer that heavy, but I'd be surprised if an e4od can put up significant mileage like that unless it's built. A...
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    6.9 in a bus needs radiator. Upgrades?

    Because it's in a 30+ foot IH school bus? I'm not sure if you've overlooked that part, but this isn't a truck or e-van chassis An e4od would be more complicated and likely not even up to the task. You'd be removing the SAE flywheel housing, installing the ford adapter, fabbing motor mounts to...
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    6.9 in a bus needs radiator. Upgrades?

    Those are for ford stuff. We're talking medium duty with an Allison at545. An at545 can use a vacuum modulator, but most diesels use a cable one, unless it's an electronic engine, then it will use an electronic solenoid. The electronic allisons are clutch to clutch which requires real specific...
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    6.9 in a bus needs radiator. Upgrades?

    Oh, and I think the ratio drop is like 33% or some such amount. The ratio is planetary derived, so it wouldn't be too difficult to calculate if one wanted.
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    6.9 in a bus needs radiator. Upgrades?

    Here is IMO the most comprehensive guide to swapping a world allison behind a non-electronic engine. https://www.4btswaps.com/threads/the-complete-allison-1000-2000-2400-info-and-swap-guide-thread.15428/ I believe you'll need a pwm based tps sensor. And then you'll need the tcm with the...
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    Dreaded ATS OEM Turbo Up-pipe slip joint leak has killed my boost 2022 edition.

    Do they sell it in smaller amounts? 10.3 oz seems like gobs plenty, and a tube of that will very likely end up matching all of the rock hard left over silicone and construction adhesive tubes that I've got in the garage.
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    Can’t get wheel lugs to seat

    Did you get the right studs? The correct ones have the knurled spot further from the shoulder, and the wrong ones will have it next to the shoulder like a normal wheel stud. The normal ones won't capture the hub/rotor correctly.
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    6.9 in a bus needs radiator. Upgrades?

    Bus market is hard to read, especially since covid hit. Covid seemed to have brought out a lot of unknowledgeable buyers. It's why you see em priced so high and goofy right now. Pre-covid, your high sellers went to your exporters, which were the dt466's, 6bt/isb and isc. That left a lot of your...
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    Dreaded ATS OEM Turbo Up-pipe slip joint leak has killed my boost 2022 edition.

    Well, I hope it works out. It also has a cure time, which needs to be 300 degrees minimum at atmospheric pressure for 2 hrs. I'd start the truck and let it idle for 2 hours, maybe take it on some light driving afterwards to get the temp higher and a better cure? Wes said a few times here to use...
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    My answer to "shower heads"

    Definitely not snake oil. I just used 2 bottles of that this summer on a duramax. He was plugging fuel filters monthly and getting low injection pressure codes. Pulled and dumped the filter and it looked like it was full of rusty goop, but the truck has plastic tanks. Dumped a bottle of that...
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    My answer to "shower heads"

    IMO I'd rather it be a straight hose, to suck all that garbage up and pass it into the numerous fuel filters I'll change out over time, then to sit in the bottom of the tank eventually plugging the screen or showerhead. My only concern would be sucking up something big enough to plug the fsv...
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    6.9 in a bus needs radiator. Upgrades?

    Intercooler kit was an option/phase 2. I would have used this guy here, mounted in the space between the turbo and stock intake, above the valve cover. I was going to use a stock 6.4 powerstroke air filter setup, as they're cheap, packaged like it would fit between the turbo and air inlet next...
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    6.9 in a bus needs radiator. Upgrades?

    Turbo kits.... I thought about using a pickup kit like you have, but had the same reservations about piping and clearances that you did. The big thing with any kit is the piping, and if the piping doesn't work, what's the point of the kit? So IMO none of the used pickup kits are suitable as the...

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