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Old 01-11-2013, 10:31 PM   #21
Neweller
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Keith, I obtained some great information. May not be what you want to hear but I got the info. The 8.3 Cummins would work but it is basically just a notch up on the 5.9 Cummins. The 8.3 would definitely be an upgrade to the 555. The mechanic said that he always recommends going with the largest capacity engine you can make fit comfortably so the engine will not work as hard while helping it get a higher MPG. The 8.3 would be fine up to about 35' coach, after that it will be under powered unless cranked up and that would take away from longevity and MPG. Gears are not a real big deal to do if needed. Most gears run around $600.00 for a good used set. He said the only buses or coaches he is aware of where the gears get pricey is on the old Eagle buses where they can cost up to $2000.00.

Gear ratio's in these Newell's can be 3:33, 3:36, 4:10 etc., depending on engine hp and transmission configurations. Yours being a triple nickel and lower horsepower I'm thinking you could have around 3:36 and that is a wild guess.

The more I research the engine upgrade option possibilities, it really gets me pumped. This is truly the way to go and the more Newell's upgraded the better they should retained value. This is my serious assumption of course. Keep these baby's going for years while obtaining great performance, mileage and dependability.
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Old 01-12-2013, 10:02 PM   #22
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Hi Ken, thanks a lot for the info, I am getting somewhere with this project, I have a friend with a 97 bird with a factory 300hp 8.3. 37ft very close to the same size and weight. I will be setting up my transmission and diff to the same specs as his. He is very happy with the way his works. I think he gets about 10mpg, fine with me if I can get that. I will finally be getting greasy next weekend, ill make sure to take some pics and post them.
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77 38' Newell Coach Repowered from Smokin' V555TA To 325hp 8.3 inline 6 cummins, Allison 3000 series trans
87 40' Newell Coach 475hp 8V92 DD(sold)
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Old 01-13-2013, 12:07 AM   #23
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Keith, that sounds fantastic! I will keep my fingers crossed for you, and definitely look forward the info sharing and pics. Let the grease fling! Here we Gojo!
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Old 02-05-2013, 03:04 AM   #24
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The 8.3 is officially out of the bus, it took a few days but it was very simple to work on, ( we got side tracked lots) plus with me being on days off I had alot of other things I had to get done, and Rick my mechanic is also very busy, I think total time was about 8 to 10 hrs, including removing the head, ( and alot of bsing)lol
The mess of wiring is for the allison transmission. It will be transplanted into the 77 Newell. We pulled the head off to change the exhaust springs from 32psi ones to 65psi to give enough back pressure for the pac brake to work properly, plus I wanted to change the gaskets. We may also re-bearing and gasket the bottom end, just because its easy now, ill give it a good cleaning and a paint job before we put it in the 77. Plans are to pull the v555 out of the coach on my next days off, (in ten days) I measured roughly and there should be lots of room to fit the new engine. Well thats all for now folks
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Keith, Krista and Family
77 38' Newell Coach Repowered from Smokin' V555TA To 325hp 8.3 inline 6 cummins, Allison 3000 series trans
87 40' Newell Coach 475hp 8V92 DD(sold)
22' 350hp Jet Riverboat
79 Ford F250 4x4
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Old 02-05-2013, 03:57 AM   #25
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Looks like you have been busy little northern beavers! Fantastic! That is one dry looking unit, which means she didn't leak and puke on herself. I thought she was coming out of a school bus and I see it is a city bus.

All I can say is: Sweeeeeeeeeeeeeeeeeeeeeeettttttttttttttt.......... ................... Thanks for sharing bro!
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Old 02-05-2013, 04:08 AM   #26
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Awesome pictures Keith keep them coming & keep us updated on your progress!!!
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Old 03-14-2013, 01:44 AM   #27
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Well Ken, its our turn!!There is a snowfall warning for the whole area, supposed to get 25cm by the morning, so we decided to finally pull the Newell in the shop to pull the engine. Started at 10 this morning and by 330 its ready to pull out, I will go to town tomorrow and borrow a pallet jack to pull it out, were going to block it from underneath and take the weight off then just roll it out the back. Did some measuring and it looks like the new engine should fit in just nicely! I may have a new home for the engine running a hydraulic pump for some equipment should suit it just fine!
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Keith, Krista and Family
77 38' Newell Coach Repowered from Smokin' V555TA To 325hp 8.3 inline 6 cummins, Allison 3000 series trans
87 40' Newell Coach 475hp 8V92 DD(sold)
22' 350hp Jet Riverboat
79 Ford F250 4x4
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Old 03-14-2013, 03:51 AM   #28
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I'm really interested in what kind of MPG you're able to get with the 8.3 and 6 speed tranny! Keep us up to date.
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Old 03-14-2013, 04:30 AM   #29
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Great news Keith about the engine swap moving forward. Of course not the damn snow! But then again, you should be used to it. Looking forward to the finished results like many I'm sure are.

Jon, you know it will beat the heck out of the triple nickel mileage. Except it sounds like the 555 will have a new stationary home, somewhere that won't possibly leave you stranded. I looked for months trying to find a rebuildable core to replace one of those. So many people back then were suggesting I stay original. So, I could only imagine nowadays.
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Old 03-14-2013, 01:50 PM   #30
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I am really excited to see this come to fruition. Keep warm and godspeed!
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Old 03-15-2013, 01:50 AM   #31
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Well folks the snow is getting deeper by the minute, only got stuck once today. The good news is the old triple nickle has been pulled out like an absess tooth. The 8.3 awaits its new home! We changed all the gaskets and seals checked the bearings in the lower end, the head came off to change the exhaust springs from the factory 32psi to 65psi ones for the exhaust brake were installing, while we were in there we lapped the valves and replace the seals, and new head gasket. Tomorrow we will do the motor mounts, mount the rad and if there is time possibly mount the power steering reservoir, and maybe the air cleaner.
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Keith, Krista and Family
77 38' Newell Coach Repowered from Smokin' V555TA To 325hp 8.3 inline 6 cummins, Allison 3000 series trans
87 40' Newell Coach 475hp 8V92 DD(sold)
22' 350hp Jet Riverboat
79 Ford F250 4x4
Many others to list
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Old 03-15-2013, 01:59 AM   #32
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Keith,

Looking good! your on fire with this project! Can't wait to see the finished product.

Sean
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Old 03-15-2013, 02:05 AM   #33
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Keith you're kicking some @ss on this engine swap. Keep warm! Looking forward to seeing and hearing more.
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Old 03-15-2013, 02:16 AM   #34
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This project is really coming along. You old boys really do know what the heck's going on. This is the most extensive repairs I have ever seen around here.

Looks like a great mascot as well.
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Old 03-15-2013, 02:59 AM   #35
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Looking really good my friend!! Nice to see the old turd out of there. The way you're going, you may end up as our Classic King. That baby will be purring like a kitten before long.
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Wanted: Newell Coach Needing Engine Replacement!
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"I know I’m not perfect, and I don't live to be. But before you start pointing fingers, make sure your hands are clean."
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Old 03-15-2013, 05:45 PM   #36
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This is awesome Keith! Great documentation and photos.
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Old 03-17-2013, 12:58 AM   #37
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Well folks, the snow is still getting deeper but I dont care! the 8.3 cummins is officially bolted into the 77 Newell!Spent a good part of yesterday just cleaning up wiring and hoses etc. cleaned up the original front motormount/ crossmember and driiled our hole for the center rubber mount. Today I had to cut the two vertical plates out of the frame and relocated them 1/2" on each side wider than the original to accommodate the 8.3 mounts, welded the plates all back in, rolled the engine into place and bolted it up. The driveshaft worked out nicely we used one half from the original and the other is the 6 speed allison, lucky the splines matched up perfectly. Also the length worked out. I tell you it is like this engine was made to fit!! Next will be the rad, it will take some fabricating to fit it in, i had to cut the right side floor out as well as the rear support to fit this bad boy in there, were going to dry fit it in make sure all the hoses and such line up nice then install the mounts that came with the donor bus, I will have to re-structure the rear support after the rad is mounted in and Im happy where its new home will be. Im sure that will be a whole day project.
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Keith, Krista and Family
77 38' Newell Coach Repowered from Smokin' V555TA To 325hp 8.3 inline 6 cummins, Allison 3000 series trans
87 40' Newell Coach 475hp 8V92 DD(sold)
22' 350hp Jet Riverboat
79 Ford F250 4x4
Many others to list
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Old 03-17-2013, 01:23 AM   #38
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Keith your a work horse just getting her done. Happy to see everything's coming along smoothly for you.

Sean
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Old 03-17-2013, 01:27 AM   #39
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That is Sweeeeeeeeeeeeeeeeeeeeet as Canadian Maple Syrup! Awesome!!!!!!!!!!!! So are you saying the radiator is going in the rear?


We have some Classic Newell remanufacturing going-on here! It's going to take us a few years to go through all the classics out there, but it can be done.
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Wanted: Newell Coach Needing Engine Replacement!
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"I know I’m not perfect, and I don't live to be. But before you start pointing fingers, make sure your hands are clean."
-Bob Marley
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Old 03-17-2013, 01:28 AM   #40
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Way to go Keith!
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