[Jacques Reed]

Hi Mariano and Hanno,

Interesting that the engine in Mariano's photo have the twin row pulleys on the water pumps but not on the generator. The factory photo shows single row pulleys on the pumps. The twin matched V belts on military engines was for reliability if one failed. Cooling and electrical generation would still occur with just one belt. Surprised if this would not be required on a CMP truck for any country of delivery.

That factory photo, I believe, is an engine for passenger, or light utility vehicles only. It has the passenger car breather cap and not the small oil bath air filter on the fuel pump stand so it would not have the PCV system as fitted on the military engines.

If Mariano's engine has an oil bath air filter on the fuel pump stand and any remnants of the PCV system then my guess is the fan, crank pulley, and generator were changed for some reason on a military engine. If no oil filter or PCV system then it could be an engine swap from a passenger car. Still doesn't explain the twin row pulleys on the water pumps however.

I have seen on this forum where twin row pulley water pumps were changed to single row due to easier availability of the single type but not the other way around. This could be a possibility here, however, based on post war surplus items in Argentina.

Still, when all is said and done so much was done in wartime that didn't stick to the book so perhaps that is the way it was setup from new. Nothing surprises me anymore with these vehicles.

Cheers,