|
Post by jim hald on Nov 2, 2010 0:06:50 GMT -5
I know this has been talked to death but I need to know if someone out there might know the answer. My 65 442 is completely stock like it came from the factory.(I think). My problem is the fan clutch. I live in Phoenix AZ. and this summer I put together the A/C with 134A. When I went to replace the fan clutch all the ones that the parts houses said were for a 65 442 A/C car were to long they hit the radiator. I looked in my GM parts manual and it said to use a 387700 that is 21/2 inches long or high. As far as I can find nobody makes one that small and I would rather not use a direct 4 blade. I read the fourm about the water pumps thinking mine was to long but it measures only 5.14 inches. I have a stock 4 row radiator with the plastic shroud I got on line from the guy that makes them. My water pump number is 384786 and the book says the number should be 388183. I asked if it had been superceded but they said no. I can't figure it out. Does anyone have any ideas. I sure could use the help. THANKS JIM
|
|
|
Post by mongoose on Nov 2, 2010 5:20:44 GMT -5
Jim, you said you "went to replace the fan clutch...". Did your car have one on it before? Was it also 2 1/2" tall? It sounds like you have the correct water pump installed... there isn't one any shorter.
I'm sure some of the guys on here will be able to verify part numbers for you, as well as point you in the right direction to find the right replacement.
Have you already checked with restoration retailors like Fusick, The Parts Place, Inc., Supercars Unlimited, and Year One? If your local parts houses like O'Reilly, Advance, Auto Zone are listing a longer fan clutch, you may have to turn to one of the restoration sources.
|
|
|
Post by 442scotty on Nov 2, 2010 6:57:36 GMT -5
The 387700 is the correct fan clutch for the a/c car. Mine still has the part number on it. I also tried to find one aftermarket with no luck. I dont think they ever made an aftermarket replacement. I will have to check my manual for the pump number but I think the one BRO shows on his site is correct.. Got a fan clutch yesterday on Ebay as a spare. They do come up every now and then...If you have one that is shot or can find a used one you can get it rebuilt by Fred Oliva 1-954-755-1161. Coral Springs, Florida.
|
|
|
Post by bubbasz1 on Nov 2, 2010 7:48:23 GMT -5
I got a replacement for my clutch fan from advance auto, made by Hayden I believe.
|
|
|
Post by BR[] on Nov 2, 2010 9:40:40 GMT -5
While we are on the subject, can anyone explain the benifit of the clutch fans on our cars. I can see by slipping it serves to gets the newer cars up to temperature quicker, but once it gets hot and the clutch locks up, it does nothing better than any other fan.
|
|
|
Post by rickman on Nov 2, 2010 10:53:07 GMT -5
Also, under hard acceleration, it lets the fan'slip', even under the 'lock-up' from heat, and catch-up later. One of the magazines did a test against a flex-fan, and found quite a gain over it, in all driving conditions. Even cooled better, especially w/air! I think it was 15-20 HP, overall! And some MPG to boot! Cutch fans are the way to go!
|
|
|
Post by RIP OLDS on Nov 2, 2010 11:13:34 GMT -5
I have the Super Cars Unlimited catalog and it list a fan clutch for the 65 442. Did all the a/c 442'2 come with the fan clutch, or was it an option?
Fan Clutch Original Thermo style clutches. Look and function as per original. YEAR APPLICATION PART NUMBER PRICE 65-67 All V8 with AC or H/D cooling....22-112........ 69.95 68-76 All V8 with AC or H/D cooling....22-100 (1).... 89.95 NOTE: (1) Delco part.
|
|
|
Post by BR[] on Nov 2, 2010 11:18:57 GMT -5
I don't think the flex fans are worth a @$%&. They tend to flatten out under hard acceleration. Thanx for the answer, but it still doesn't show me HOW it can cool any better than a fan with a steep pitch. Locked up it's still only turning engine speed 1:1, so where is this huge benefit that we here about.
|
|
|
Post by bubbasz1 on Nov 2, 2010 13:02:06 GMT -5
I don't think the flex fans are worth a @$%&. They tend to flatten out under hard acceleration. Thanx for the answer, but it still doesn't show me HOW it can cool any better than a fan with a steep pitch. Locked up it's still only turning engine speed 1:1, so where is this huge benefit that we here about. That is the whole concept behind a flex fan, as the rpm's go up it flattens hence taking less HP to turn. So if your rpm's are going up you should be moving so you get your cooling from the rush of air into the radiator, not the fan. Common sense 101, fan blades for dummies(BRO).
|
|
|
Post by 1partshelp@gmail.com on Nov 2, 2010 14:00:49 GMT -5
I want to thank everyone for their answers and the help. The fan clutch that is bad came on the car when I bought it many many years ago. I don't know what manufacture it is and it is 21/2 inches high. It has no spring on the front so I guess it is all liquid silicone. It has numbers on the front 7 9 8614 in that order also on the shaft 0486-20-0825 what they mean I have no idea. I looked up the patterned number with the government and it wasn't patterned until 1969. I also talked to some Hayden engineers they looked in their books and found that they don't make a fan clutch 21/2 inches that will work. When you found the one on eBay what numbers does it have on it or the manufacture name. I haven't talked to the restoration places(fucisk etc.) but if know one makes them who would have them. Again I want to thank everybody. JIM
|
|
|
Post by 442scotty on Nov 2, 2010 22:00:02 GMT -5
The one I got was a NOS unit with the correct part number on it.. bubba...what are the measurements of your clutch? Just wonder how you got it to fit...The correct 65 unit is a one year only clutch...My A/C 442 has one. The 66 and up ones were taller and wouldnt fit on my 65 cutlass (too close to the rad)...hence my search for a backup/second 65 unit...
|
|
|
Post by BR[] on Nov 3, 2010 6:56:26 GMT -5
I don't think the flex fans are worth a @$%&. They tend to flatten out under hard acceleration. Thanx for the answer, but it still doesn't show me HOW it can cool any better than a fan with a steep pitch. Locked up it's still only turning engine speed 1:1, so where is this huge benefit that we here about. That is the whole concept behind a flex fan, as the rpm's go up it flattens hence taking less HP to turn. So if your rpm's are going up you should be moving so you get your cooling from the rush of air into the radiator, not the fan. Common sense 101, fan blades for dummies(BRO). OK Dummie, I've seen them flex , climb out and hit the rad on the strip.
|
|
|
Post by mongoose on Nov 3, 2010 12:44:16 GMT -5
In the late 80's I installed a flex fan, and didn't account for the flex in the fan arms (figured only the blades would flatten out). Fan found its way into the upper radiator tank at the end of an 1/8 mile run. I hate being educated that way...
|
|