GMC diesel engine

[John Eary]

Check out the following two pics. The first is from Claus Bonnesen's site which I had a time tracking down at it's new location. The second is a set that I took at Wright Patterson AFB some time ago. Is there a point to this? Maybe. A number of modelers have wondered what color the GMC diesel engine should be in the M4A2 and M10 TD.

 

http://www.mobilixnet.dk/~mob75281/pic/pro...10/gm6046-1.jpg

 

 

http://members.tripod.com/mmfs0/Photos/jeary/index.htm

 

That should be better. Thank you Jacques!

 

Claus's pics help here but interpretting just what color that is, is a little iffy what with aging, photo variables, etc. I have speculated that the color pictured is the same blue-green used on Detroit Diesel Allison engines as late as the 70's(don't know about newer stuff). Then I find my old pics of the Allison AC engine which seems like a very close match at least. But there are nagging questions:

 

As I understand it, Allison was a GM division as was GMC (of course). Were the GMC diesels made by Allison? Are the two engines pictured wearing their original colors? Was this, in fact, the same color? Anal modelers want to know!!! Any clarification would be appreciated.

 

 

<font size=1>[Edited by John Eary (22 Jan 2002).]

 

[Edited by John Eary (23 Jan 2002).]

[Jacques]

Hiya John,

 

the picture is up here:

http://members.tripod.com/mmfs0/Photos/jeary/index.htm

[John Eary]

Thank you, Jacques.

[John Eary]

Through extensive "Googling", I've made a few discoveries.

 

1 GM formed Detroit Diesel in 1938 and their main product was the 6-71 engine. Two 6-71s were joined to make the 6046 (M10 engine).

2 Detroit Diesel and Allison were not formally consolidated till 1970...so any affiliation during WWII is unclear.

3 Although Detroit is now owned by Daimler Chrysler, the engines still seem to be the same color:

http://www.detroitdiesel.com/images/ddc_im...s/Series60G.gif

 

The GMC diesel SEEMS to be the same color as the Allison AC engine, but I have not found the direct linkage which I expected, what with both engines being heavy duty specialty units. Nonetheless, I can now assemble and paint my tank engine with confidence.

[Jacques]

put up the other pic. The above link to it will get you to both (the second link, that is).

[Jacques]

Ok John, check out the new info... I think I got it right.

[John Eary]

Beauty, man. Thank you. I hope it is useful or interesting to some folks. BTW, while looking for info on the subjects I came across a cool site:

http://www.unlimitedexcitement.com/Miss%20...10%20Engine.htm

 

This link goes to a page on the Allison AC engine and there is a similar page on the RR Merlin.

 

Have fun,

 

John