F15A Fan Shaft Configuration

[m606paz]

Hi Boys!

This configuration is on 1945 F15A .
Engine 4G-######
Frame SU-234144

Any idea about this configuration?

Correct for CMP?

Thanks in advance!

Regards

[Jacques Reed]

Hi Mariano,

I think that may be a civilian fan setup. All Ford CMP's engines I have seen that are correct have twin row pulleys on the crankshaft, water pumps, and the generator as per photo of mine. The fan is definitely attached to the twin row pulley on the generator. A fan shroud, if fitted, goes around the fan to improve the air flow through the radiator. At the location shown in yours it would be too low on the radiator and would not clear the shroud.

Added Info: I checked the 1940 parts catalogue as a second source. The same shroud is specified for all models of the early CMP trucks depending on engine s/n's so if that holds true for cab 13 models it confirms the above.

Added unobstructed view photo of crankshaft double row pulley for your info.

Hope this helps.

Cheers,

[m606paz]

Jacques!
Thank you very much for your quick reply.
I have found this same configuration in another Ford with a 70 number difference between the chassis numbers, but instead of an F15A it is a FAT. Maybe it was a post-war modification, made here in my country.
Best regards!

[Hanno Spoelstra]

Mariano, how is the fan belt driven in the setup in your pictures? As far as I can see a shaft is added to the front of the lower pulley with another pulley fitted in front of it.

I have no idea why this was done, other than to prevent the fan falling into the radiator when the nut holding the generator + fan fails.

[m606paz]

Hi Hanno!
This configuration seems to be like the pic attached..


I also have no idea why it was made ... maybe because it was from 1945 and remaining production of some canceled contract ...

[Hanno Spoelstra]

Originally Posted by m606paz

I also have no idea why it was made ... maybe because it was from 1945 and remaining production of some canceled contract ...

That’s the most likely explanation. So it is a factory configuration. This setup of course lowers the fan position so it will fit in other vehicles as well.