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Difference between KW K100/K100C/K100E??????

Posted By erich.vongeist Wednesday, September 02, 2009 5:35 AM
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76 k100 stretch
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hi everyone im new here but here is a pic of my almost finished k100 stretch 300 inch wheelbase and I love herhttp://forums.aths.org/Uploads/Images/00a83b12-3f02-4ad1-b4ba-3cc8.jpghttp://forums.aths.org/Uploads/Images/446b5d59-45a7-4348-8d3d-0b33.jpg
erich.vongeist
 Posted Sunday, September 06, 2009 10:10 AM
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Drooling's an understatement. I love the K100's. All years right up to the end. I think I am going to save my money once I sell my other vehicles and get myself a KW K100 as my first rig. It has to have a sleeper and have tandems. It depends on the truck and the deal, but I am hoping to find one with a Cummins BC4 or N14, DD S60 12.7, or the CAT 3406B/E. Maybe an Aerodyne with the VIT interior. I found one I like but it's in Washington State and I am in SC. If it's still for sale when I get my $$$ straightened out I might get it. It would certainly be a nice joyride home. LOL! I am going to use whichever one I finally get to go O/O with. I'll have to put a smooth 70's paint scheme on it if it doesn't already have it. Convincing the "One who must be obeyed" that the year doesn't mean so much if the rig is in good shape and maintained well with the right engine in it is a hard sell. She thinks that the newer the better, and in some cases that's true. But in the end, the vehicles I'm selling are in my name and I will be "holding a steering wheel" to pay for whatever I get So the ultimate decision is mine. All Mine!

I can't wait! This picture about sums it up for me being a child of the 70's/80's.

Erich

1966 Ford F-600 ex-Fuel Tanker, now a flatbed aka "Big Lou''s Little Big Rig"
engine: FT 332 cu" 2-Barrell Carburetor
transmission: NP435 4-speed (granny gear 1st)
rear axle: Eaton 13802 2-speed
GVW: 17,000lbs
GCVW: 24,000lbs


2005 KW T800
72" aerocab sleeper, 235" wheelbase, cat C15 2004 epa acert Series/twin turbo 550hp/1850ft-lbs, 13 speed



3.55 rears and some theatrical. Decorations. LOL!

 K100 sunset.jpg (1,497 views, 173.50 KB)
deguitars
 Posted Sunday, September 06, 2009 9:53 AM
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So that's Dan's old K123! Rumor has it there was a 12V71T lurking beneath the hood on that one. What a great looking truck.

John W, that's a really sweet looking 1970! Do you have any idea where it went when it was sold? The exhaust plumbing is crazy, but not atypical. Here's another one similar to it with a Cat c. 1980 or so from the K100 Brochure.

John C, thanks for all the plumbing literature. I have a plan in mind and there's a parts house not far from me with lots of these elbows in stock they've had for along time just sitting on the shelf. I'll go by and grab a few bags full and see what works and what doesn't and return what I don't need. They're not really that expensive and it beats driving hours from here to the nearest yard which won't have what I need anyway. Here in CA with space at such a premium there are few places that don't crush anything more than 10 years old anyway. The tubing is major $$$ but Airflow seem to have the best prices on that unless you want to go with a thicker gauge tubing from a local metal supplier. Shipping just kills on something that long so I'll probably do that when the time comes.

Erich, are you drooling for an early 1970's K100 yet?

Cheers,
David


 cat plumbing.jpg (1,442 views, 312.74 KB)
John Costley
 Posted Sunday, September 06, 2009 4:02 AM
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John,

Youre right, Dan's did look like a Time-DC tractor.Cant remember what he said the history was on it.

Hope that '70 went to a good home.Pretty unusual tractor.John

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erich.vongeist
 Posted Sunday, September 06, 2009 3:21 AM
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Wow, those are sharp K's. The other cabover makers didn't keep up the classic look like KW did. All the K100's look classic even if they are the latest year model made.

If I could get lucky enough to find a good K100 I could run with, I'd do just about anything to get it. already missed at least two.

Thanks, Erich

1966 Ford F-600 ex-Fuel Tanker, now a flatbed aka "Big Lou''s Little Big Rig"
engine: FT 332 cu" 2-Barrell Carburetor
transmission: NP435 4-speed (granny gear 1st)
rear axle: Eaton 13802 2-speed
GVW: 17,000lbs
GCVW: 24,000lbs


2005 KW T800
72" aerocab sleeper, 235" wheelbase, cat C15 2004 epa acert Series/twin turbo 550hp/1850ft-lbs, 13 speed



3.55 rears and some theatrical. Decorations. LOL!

John Woge
 Posted Sunday, September 06, 2009 2:11 AM
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Dan's KW had the looks of an old TIME-DC tractor. If I'm thinking straight...they used the same air cleaner setup. Maybe someone changed the headlights over the years ?? They used those tractors in his area to pull doubles between Chicago and Cleveland...then Ripley,NY and Boston.

Here's a 70 I've had my eyes on for a few years. It belonged to an elderly widow and sat in the same garage for about 20 years. They finally had an auction this May, and it was sold. Nice old tractor...with a lot of options for a 70. Check out the exhaust routing.

John

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John Costley
 Posted Sunday, September 06, 2009 1:18 AM
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David,

The freind who had the '70 is everybody's freind, Dan Renovetz.He had it before he started collecting GMCs.Sold it to somebody down south, cant remember the name.Heres a few more shots of it.Notice Dan's jimmy powered jimmy PU in the background.The reason that one had the odd Farr setup is that it was a 12V71 truck.The Farrs look goofy, but they flow alot of air.

Also, the rest of the pics I have of that black/red/gold '85 E model.Probably the sharpest E Ive ever seen, I'd put up with the cable shifter to run that one,lol.Lots of custom touches, still for sale with the trailer as far as I know, but not cheap.The paint was over ten grand, done at a custom car shop in jersey.I kept the contact info from the ad, just in case I hit the powerball soon,lol.

Im posting a couple pics of non factory, added on dual inlets.The black '76 looks to be built from junkyard under the hood conventional pieces.Notice in the second shot of the '76 that it actually has an undercab air cleaner.The inlet stacks appear to be dummys for looks only.The shiny one is a sister truck to the chocolate one I posted before, owned by Ken Baily out of MO.,show a better shot of the same setup that the chocolate one runs.The crosstube, or T, looks to an underhood Pete or KW conventional piece.Riker, Donaldson, and Dynaflex all have part numbers for reducers to go from 8" down to 7", 6", or 5.5".You could put one at the cannister and run smaller tube to the stacks, or keep youre 8" from the cannister to the stack, then go smaller there for the T.Those reducers were used under the hood of alot of conventionals, so you could probably find the right one at a junkyard.One afternoon of lifting hoods at a decent truck junkyard would get you all the pieces you would need for a single cannister/dual stack setup, as long as there was at least one KW COE there so you could get youre second stack.Or, you could spend the big money and do it with all new stuff, even the aluminum tubing for the stacks is in the catalogs, sold by leangth.Be kinda pricy to do it all new though,lol.John

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Sunday, September 06, 2009 1:29 AM by John Costley
deguitars
 Posted Saturday, September 05, 2009 6:28 AM
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John,
Great photos! I was looking for a shot of that red and black '85 but you beat me to it as usual. The smaller rectangular upright of the E model was really much more elegant than the giant U-channel of the K100C and allowed for more room to hang stuff. I hate to say it but they actually improved that aspect with the E. Unlike those shifters. I've only driven the K100Cs but I have hated every cable operated car trans I've ever been in...no feel for anything like you said.

Those Farr cleaners look really goofy don't they? Almost as goofy as they look when you hang them on the side of a W900 hood!

I noticed your friend's 1970 also has the ultra-rare two piece exterior grab rail and step. For some reason this is the one Revell, or whoever, copied when they made the 86" cabover model kit but I've never actually seen one in person. The 1970 "How Kenworth Builds a Cabover" brochure shows one too so I guess 1970 was a big year...for something?

You're right, most of the KW dual intake tubes are either outboard or bunched up in the center. Day cabs presented another challenge altogether with their lack of room, but somehow KW managed to stuff everything in there.

I agree with you about twin stacks and I'm working hard to come up with a solution (and the parts) to convert mine to twin stacks. It's not easy with that 8" intake tube and a Detroit with the turbo mounted on the rear and the rear crossover pipe. I'm limited as to where I can run the a/c to engine plumbing. The later 8V71Ts and the 8V92's all had the turbo either center or froward mounted and different manifold crossover pipes which allowed the a/c to be rotated and freed up a lot of space. I'll figure it out though...

Cheers,
David

John Costley
 Posted Saturday, September 05, 2009 12:57 AM
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" The standard battery box placement prior to '84 seemed to be pass. side (I think this is what you meant to type) "

David,

Yup, thats what I meant,lol.That dash arrangement with those defroster vents is the one I was talking about.I ran a '77 with the centered round vents, wasnt fun in New England winters until I got a set of dual overhead fans.Always figured having that extra rectangular vent closer to the outside would have made a big difference.

Youre right on the cable operated doghouse mounted shifter.'84 was the last good year for pretty much all COEs of any brand as far as Im concerned.Ive run a few with doghouse shifters that were eventually "ok" after lots of trial and error on adjustment, but they just arent the same, cant really feel whats going on in the trans like you could with the thru the floor units and you cant make a shift as fast.Too bad, alot of the later COEs were nice,well engineered trucks, but that doghouse shifter kills the appeal for me.

KW offered some odd air cleaner options, from the under cabs to the big sqaure or rectangular Farrs.Check out the same side duals on the '65 Newton Trans 12V71 truck, one of the oddest setups Ive seen.Thats an interesting pic you posted of the dual air cleaner truck.Ive only actually seen two with actual frame mounted dual cans that had the inlet stacks inboard of the exhaust stacks.One was a 3408 truck and the other was a KTA truck, both were early '80s custom ordered O/O trucks, still with the original owners when I saw them.Ive seen pics of a few more but not many.Most dual cannister trucks, like you mentioned, were Detroits ( 12V71s ) and had the inlet stacks outboard with the exhaust inboard.Most of the KWs that Ive seen that had dual inlet stacks used a T connections and only had one cannister.Ive always thought any brand of COE looked better with dual inlet stacks.Just doesnt look right to see dual exhaust and one inlet.John

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Sabattus,Maine

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Saturday, September 05, 2009 1:03 AM by John Costley
deguitars
 Posted Friday, September 04, 2009 6:51 AM
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John,
I think "transitional" is a good way to look at the '84s. I've trucks with some of the changes you mentioned as early as late '83 but they were slowly phased in. The real turning point definitely came with the ushering in of the cable shift lever. Yuk!

The standard battery box placement prior to '84 seemed to be pass. side (I think this is what you meant to type) and the rectangular dash vents you remember were part of the "large" one-piece Aerodyne dash I mentioned which they started fitting to everything around this time. As impressive as that dash is with it's double-decker switch arrangement I still find the early dash somehow more interesting with the round vents and the smaller main panel.

I like your idea of the dual air intakes on an Aerodyne! Dual intakes & air cleaners were actually offered on the K100C with Detroits, in particular, according to the factory diagrams. I'll attach a few shots of one equipped this way (both shots are the same truck). We spoke to Kenworth about this and the same set up was technically offered on the later Aerodynes as well but in practice it seems like most Detroit equipped trucks were fitted with single intakes and a single exhaust to keep the plumbing less complicated under there. The real issue is under cab clearance for the 8" intake tube used with Detroits. There isn't much room even when the intake is mounted outboard of the brace, move it inboard and you have real issues. So they went to two 6" tubes instead on some trucks. Later E models with the air cleaner under the tunnel were often fitted with dual intake tubes with a nifty welded set up.

Cheers,
David

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