IH Conco

[Jürgen M.]

Hi everyone,

I know, I said I'll be back in October or so with my next project but I was browsing through the net the other day, not expecting to find anything really interesting, when I found a picture of a 1975 IH Conco 4100.

I knew immediately that it wouldn't let me go so I began to try designing it. Not es easy as a K100 but it somehow worked out quite well!

This is the first shot at the cab. I included the cab supports and the firewall to be sure they fit later!

The hood was quite a challenge but I think it looks pretty good!

The hinges fit into the ones on the cab. I'll put pieces of 1mm brass rod through to make them work.

 

 

[Bren]

Wow! Some great CAD skills there! Maybe you can post some hints or direction on where to go so we can learn to do some of this? 

[Chariots of Fire]

Will be interesting to see the printout.

[Jürgen M.]

You said it! ? 

I'll still have to make some changes but I'm sure it'll come out OK!

[Jürgen M.]

4 hours ago, Bren said:

Wow! Some great CAD skills there! Maybe you can post some hints or direction on where to go so we can learn to do some of this? 

Thanks! 

I'd love to give you some hints. 

Tell me what you'd like to know!

I'll do my best to help!

?

Edited June 20, 2024 by Jürgen M.

[Rockford]

What an odd looking truck! That's the first time I've ever seen one of them. What does CONCO stand for:- CabOver Not CabOver? The driver got the worst of both worlds with that cab, barrow conventional type cab on top of the engine! Either way, it's an interesting project. I knew you wouldn't be able to last, you're as bad as me when I open boxes to look at what's inside and start gluing things together! ?

Looking forward to seeing this take shape. Are you going to make your own chassis? You could use a Transtar chassis couldn't you?

[Jürgen M.]

? 

I have no Idea what Conco stands for but your definition sounds interesting! ?

I had never seen one these before either! It does look quite odd but that's what I like about it! It's not an everyday truck like a K100 or a 359.

It'll take a while though because my monitor said good bye yesterday. My computer doesn't have its own screen!

No hurry though. Maybe there will be another Christmas in October or so! ?

[Jürgen M.]

I did some research ob the word Conco, don't know If I hit the right one though:

It is quite a punch If you look at the design and concept.

Maybe I'll ask IH directly! ?

[DRIPTROIT 71]

11 hours ago, Rockford said:

What an odd looking truck! That's the first time I've ever seen one of them. What does CONCO stand for:- CabOver Not CabOver? The driver got the worst of both worlds with that cab, barrow conventional type cab on top of the engine! Either way, it's an interesting project. I knew you wouldn't be able to last, you're as bad as me when I open boxes to look at what's inside and start gluing things together! ?

Looking forward to seeing this take shape. Are you going to make your own chassis? You could use a Transtar chassis couldn't you?

From what I understand CONCO stands for Conventional Cabover.

 I have a resin one of these that Spaulding made. I hope to build it one day.

 I’m looking forward to seeing this one done.

[Gary Chastain]

Interesting project

[Jürgen M.]

Thanks for that information! Sounds logical! 

Hope to see yours soon too! Fortunately there is quite a picture stock in the internet which makes an authentic build possible!

Still I might use a modified version of the chassis I had designed for the K123 I just finished!

What makes an International chassis unique? Did they have any special features not seen anywhere else? I saw that the rear has a higher frame leading to the fifth wheel. Is that typical for IH?

I'm still not sure yet if I will build a tri-axle 10-wheeler with a long chassis that leaves space for a special build or at least a headache rack or something or if I'll make it a 6-wheeler! 

[Rockford]

From what I've been able to find on the interwebs it is indeed conventional cabover which is a bit of a muddle but I suppose it doesn't fall into any one category. Didn't KW have CBE- cab beside engine, but they were genuine one-man cabs. Mack had the offset cab but that was a true conventional. I don't think IH chassis were really any different to any other except I have seen some with a height change just before the front suspension, ( have I got that right?). Sorry to hear about your screen, have you tried turning it off and on again? ? Whatever path you take it will be an interesting project to follow. Looking forward to seeing it take shape.

[Jürgen M.]

Thanks for your efforts guys! Didn't expect so much support in this! Great! ?

Whatever it actually stands for its a very exotic truck seen from today's point of view!

The screen is really gone! It can't be turned on anymore!

Mid of next week I expect a new power unit which I believe is the reason for the defect!

Hope I'm right!

[Jürgen M.]

I just got a message that my power unit should be arriving tomorrow! 

Means there will finally be progress again!

Can't wait to proceed! ?

[leafsprings]

Interesting subject, with a face only a fleet owner would love, I'll be watching your progress on this one.

[Jürgen M.]

? you put that very nicely!

Still thinking about what I'm going to make of it. Tendency is going to a tri-axle. I'll decided along the way!

[37 caddy]

I was watching TV the other night and a commercial came on for the new game of Fortnite and there was one in the game ? it showed it for just a second on the screen,that might be an idea?

[Jürgen M.]

?? 

Thanks for the hint!

[Jürgen M.]

Got the power unit but it doesn't fit.

Ordered a new one. It'll come tomorrow!

[Jürgen M.]

Finally my Monitor works again. I was luckily right about the power unit.

Anyway, now I can proceed with designing.

 

[Jürgen M.]

I´m thinking about what kind of engine to put in. When you open the hood in front you´ll have access to the radiator, lubricator and maybe washing and steering fluid. You can´t tilt the cab which

limits the access to the engine itself. If I put in an in line 6cyl. engine it might stick out from under the cab in the back. This does not seem to be so when you look at the pictures.

Maybe I´ll have to shorten the engine block or just reduce it´s size by a few %. My designed engine block would fit under the cab but the position of the radiator might be a problem.

Is that a 6cyl serial engine? Looks quite short! But it doesn´t seem to be a V6 or V8 either.

[Rockford]

Jürgen, I've found the page you got those pictures from and that truck actually has a 290 Cummins in it. I can imagine it is a tight fit and I wouldn't want to do an in-frame on one! 

https://barnfinds.com/1975-international-cabover-conco-transtar-4100/

Edited June 27, 2024 by Rockford
Added link

[Jürgen M.]

Thanks Rockford. Maybe I should just read whats on a page instead of just looking at the pictures! ? 

I just looked it up to see what it looks like. Didn´t think it would be turbo charged. Well, I´ll be able to
print one I guess. Since it´s not really visible, please don´t scold me if I lose some details! ?

 

[Jürgen M.]

Some designed parts and components: (sorry about the picture quality, I took pictures instead of making screenshots) ?

The first try on the NTC 290:

Not exactly authentic but good enough!

 Wheels:

Rear drive train (in one piece):

Chassis (rear part in one piece, front part two rails.

(Yes, I took over the rear part from the K123 and modified a bit!)

[DRIPTROIT 71]

17 hours ago, Jürgen M. said:

I´m thinking about what kind of engine to put in. When you open the hood in front you´ll have access to the radiator, lubricator and maybe washing and steering fluid. You can´t tilt the cab which

limits the access to the engine itself. If I put in an in line 6cyl. engine it might stick out from under the cab in the back. This does not seem to be so when you look at the pictures.

Maybe I´ll have to shorten the engine block or just reduce it´s size by a few %. My designed engine block would fit under the cab but the position of the radiator might be a problem.

Is that a 6cyl serial engine? Looks quite short! But it doesn´t seem to be a V6 or V8 either.

This truck has an inline 6cyl 290 Cummins as already mentioned. The floor board on the passenger side is almost nonexistent.

Edited June 28, 2024 by DRIPTROIT 71