No help on chasing the squealing, after checking belt alignment to generator and damper I would probably get spray belt dressing and hose it down, then I would know if it’s the belt……and then change it out no matter what.
Don’t know the under hood space on your 1940 but on my 46 w/235:it's not exactly roomy, i swapped water pump out without removing the radiator, center hinged hood, or anything other than the generator….just took a little patience.

Chuck
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46 w 235 engine

Last edited by Hanks custodian; 03/10/2024 3:56 AM.
Hank: 46 Chev 1/2ton shortbed
2023 Miata RF Club