Need some direction .. my 1940 pick up truck im running a 1951 216. When i start my truck im getting a big sqeeling noise after about 45 seconds it goes away and comes back somewhat when i step on the gas for a high idle. I tried swaping fan belts to a smaller with 3/8 and it got a little better but didnt completly go away. Heres what i noticed my water pump pully seems to wobble a lil bit but then starts to spin staight and noise goes away. Is this noise my water pump bearings? I tugged on the water pump pulley and it doesnt seem to be loose. and if it was my water pump bearings why does it go away after a short while. Its not an easy job to replace water pump so i need some advise or someones expertise opinion. Also im really confused on what size pulleys i have. The 1951 216 does it come with a 5/8 pully ? And what width size belt do i use ? The belts never say 5/8 or 3/8 in example the belt i just installed is 13/32 W x 42 5/8 L and the one i was using before that was .53 W x 42 1/2 L so whats the correct size for 5/8 pullys which i think i have.
