[ian mac]

Joe:
good advice. i will check out.

Straight Eight:
do you know if this stuff does what it says on the can?
sounds good but as you know, if we will buy it, someone will sell it!! haha.
it will be great if it does work. thanks for the pointer

[Straight eight]

Sure enough. Have used it for the past two years with great success.

[ian mac]

Straight Eight:
thanks again.
there is some on ebay just now.
i will have a bid

[ian mac]

there are also the universal 'Flex' six blade fans.
there are some on ebay now.
has anyone experience with theses fans?

[ian mac]

Just for anyones interest, i have been advised that some of the 18 inch flex fans measurements:
the center hole is 5/8" of an inch diameter, with the largest 4 bolt spacing of 2 3/8" center to center.
there are various diameters and different rotations- clockwise and anti.

[ian mac]

continuing this theme.......
i would really like to get at the problem rather than go the route of adding non standard equipment etc....
I will start a new thread and see if we can get some interest going!!
see overheating- possibly altitude?

[rusty1951]

The fan blades with a clutch will not work. I think they came out in 1960. Will need one that is earlier

[Aaron65]

Well, I installed a '59 Cadillac AC fan, and it works great! It is pretty close to the radiator, about 5/8 inch away...Joe and Rusty, does that jibe with your experience?

[kaycee]

My Buick parts books show a 6 blade fan available for the'50-'52 series 70, '53 series 50-70, '54-'55 all, and '56 with air cond. It does'nt give the size, but the Buick part number is: 1161825, group number 1.064. I do'nt know the diameter or if it'll work as good as the Cadillac blade, but it should bolt right up to a '53 40 series straight eight since the '50-'53 straight 8 's list the same water pump for all series straight 8 s. ( Note: the '54-'55, and the '56 w air. are V8s of course, but still list the same available 6 blade fan part number as the earlier straight 8). My books also show the same spacer from '50-55, and some '56 . Size of the spacer is : 1 & 1/2 long, 5/16 shoulder , part number : 1338263, group number 1.064.
My parts book is from Buick in 1970 and goes back to '34 on common things like belts, but most parts only go back to the early 40's on parts still available in '70 when I got my books, so a lot of earlier parts were already discontinued and not listed any longer.
I'll gladly look up part numbers for anyone if they're listed in my books.
kaycee

[Grandpa]

I am using the 1950-52 Buick Roadmaster 6 blade fan on my prewar Buick. It bolts on without any modification. However, getting the four attachment bolts installed is a bit of a challenge.

I have a 6 blade fan that I don't need or know what it is from. See my post under the "What is It?" forum made three days ago.

Grandpa