Help wanted on early CMP C15

[Mike K]

I have a very early cab 11 and you may find out as I did, issues with the cab panels fitting together . I found some graphic evidence where panels had been roughly hammered in order to make them fit together . It was a while , maybe a few months before the factory managed to adjust the various bits n pieces with a neat fitting appearance. The main cab arch bar frame on mine was twisted and it seems to been made that way, other cab 11 owners have also noticed the same problem when it comes to assembly.

[JohnG]

Thanks Mike,
I have seen the potential work on the panel fitting. It seems to me a bit unusual but good to hear that this comes with the early ones;-)

Regards John

[JohnG]

My research on the engine is a step further the castingnumber on the engine 839931 appears to be of a 235 engine.
In the cilinderhead I found L203 what means:
L = Dec
20 is the day of the month
3 must be 1943

So my engine mistery is solved;-)

In one of the cilinders I found STD on the piston what appears to mean "standard" so still the original piston in the Engine!

So my guess is that is a replacement engine (1943) but very good condition

[Hanno Spoelstra]

Originally Posted by JohnG

My research on the engine is a step further the castingnumber on the engine 839931 appears to be of a 235 engine.
In the cilinderhead I found L203 what means:
L = Dec
20 is the day of the month
3 must be 1943

So my engine mistery is solved;-)

In one of the cilinders I found STD on the piston what appears to mean "standard" so still the original piston in the Engine!

So my guess is that is a replacement engine (1943) but very good condition

John,

As far as I know the 235-cu.in. engine went into production from 1941, but was used for large trucks. I doubt this was a wartime replacement, as standardization was the name of the game in the interests of logistics (which is why the Allies won the war).

Anyhow, it is nice your truck has a wartime engine which is practically the same as the 216-cu.in. engine it would have had from when originally built.

Hanno

[Pete Ashby]

Originally Posted by Mike Kelly

I have a very early cab 11 and you may find out as I did, issues with the cab panels fitting together . I found some graphic evidence where panels had been roughly hammered in order to make them fit together . It was a while , maybe a few months before the factory managed to adjust the various bits n pieces with a neat fitting appearance. The main cab arch bar frame on mine was twisted and it seems to been made that way, other cab 11 owners have also noticed the same problem when it comes to assembly.

Point well made Mike, the arch bar is a particular issue to fit correctly also the floor plates around the front wheel wells can be an issue (there are two different sizes depending on the date of manufacture). The 12 cabs seem to be a better fit all round but once again the arch bar can be an issue particularly on the front mountings. I have found the best way to assemble the cabs is to put as much as you can together loosely then carefully jack the cab floor and/ or frame to close the gaps and go round several times pulling up all the bolts until a reasonable fit is achieved. Chevrolet in particular have metal packing pieces inserted in things like wing and step brackets and shock absorber mounts to tilt or twist the brackets to fit these need to be in place or else they will not line up.

Pete

[JohnG]

Can someone help me with info on the rubber between the window(s) and the frame is the Cab11.
There was no rubber left (it was stripped) when I bought the C15 and now I try to figure out what I need and where to get it from!

Thanks!