(more) '64-5 C60 w/L76 pulleys, fan assy.

[Wayne M.]

After getting a few emails about the several previous threads on the same general subject, and warmer weather for working in the garage, I decided to pull the fan and uppper & lower pulleys off of '65 #014xx. I've owned this car for 25+ years, and none of the previous owners were "restorers". In fact, I rescued it from a guy who was ready to make it into his autocross (slalom) car.

Autoload pic below is of the water pump pulley 3848904, used for '64-65 C.A.C w/Sp. H/Per., according to the Chev Parts bood (rev July '65) It is described as having an O.D. of 6_9/32" dia, but mine is 5.82". However, the '65 AIM shows 3850979 only for C60 / L76 for this application.

But look closely at the GM stamping with the letter "S" below. Note the stylized script/font. Also check the link to the crank pulley, which shows the same script (a matching set ). The balancer pulley # 3858533 apparently was introduced in production only on August 8th of 1964, so I wouldn't expect to see this on '64 MY cars.

I'll clean up the 7-blade fan a bit and post pics tomorrow.

Close-up of water pump pulley part #3848904 (note orange paint UNDER black)

Balancer pulley # 3858533 (note same style script)

Would be interested to hear from any that have seen this script on '64-65 upper "904"s and '65(+?) owners that have seen it on "533" pulleys (L76, L84, L79 w/o PS). Can anyone explain the orange paint next to the steel on the upper pulley ?

[Michael M.]

Re: (more) '64-5 C60 w/L76 pulleys, fan assy.

Thanks for taking the time to do this. This is very interesting. I can`t use the 533 balancer pulley on my 65 because of the PS add on pulley won`t bottom out to bolt up. I have a 3744043 balancer pulley that works well with the 904 PS pulley. James on the forum has a 3650838 balancer pulley matched up to a 509 PS add on pulley. His should be original also. I am ordering a 3650838 like James for my car. Both of you have the same upper WP pulley #3848904. I haven`t located one of these yet but I did match up a #3890419 which seems to match up well on my car with the 3744043 balancer pulley on my car. You must not have Power Steeering? Maybe James will chime in on his pullies script as he has his off to. All of mine are later with block lettering. Don`t understand the paint unless the painted the engines orange with the pullies on and then trimmed out the pullies in black. Thanks for the info. Mike

[James W.]

Re: (more) '64-5 C60 w/L76 pulleys, fan assy.

Wayne,

Send me your email address and I'll send you pictures of my late 1965 VIN #22095 upper and lower pulleys. My lower pulley has a different part number than yours, probably do to the N40 option???

Regards,

James West

[Joe R.]

Re: (more) '64-5 C60 w/L76 pulleys, fan assy.

Hi Mike:

I'm trying to determine the exact diameter (outside to outside) of the #3890419 pulley. You mention that you have one. Is there any chance that you can measure it for me? If it is on the car, the easiest method is to measure the circumference.

[Michael M.]

Re: (more) '64-5 C60 w/L76 pulleys, fan assy.

Diameter is 6.25 inches. Thanks, Mike

[Joe R.]

Thanks Mike!! *NM*