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Username Post: Water Pump & Pully Problem        (Topic#349956)
junky 
Valued Contributor
Posts: 2502

Loc: Northeast CT
Reg: 06-27-10
03-05-18 05:28 PM - Post#2726552    

I installed a rebuilt water pump on my 1962 327 / 300 HP engine, and when I attempted to install the pulley and fan, I ran into a problem. The shaft is too large for the original pulley and fan clutch. I thought that it might just be a fluke that the re-builder used the wrong size shaft, so I dug out a new rebuild kit that I had bought. Checked the shaft on that one, and it is the same as the rebuilt water pump. The water pump that was on the engine has a smaller diameter shaft, and is the later style that has the plug in the middle of the top for a heater hose. After checking a few other water pumps in my collection of used parts, I have come to the conclusion that the pulley and fan clutch are wrong for a 1962.
What is the diameter of the fan pulley for a 1962 327/300 HP engine with air conditioning? I could bore out the pulley that I have to a larger diameter, but I don't know if the diameter of the correct pulley is the same as what I have. I will purchase a new fan clutch to complete the project. I am thinking that this is the reason that I had a problem installing the air conditioning belt a few years ago.
thanks.. Junk

Never argue with an idiot. He'll drag you down to his level, then beat you with experience.


 
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pvs409 
"6th Year" Gold Supporting Member
Posts: 2134
pvs409
Loc: Sergeant Bluff, Iowa
Reg: 01-10-05
03-05-18 06:39 PM - Post#2726555    
    In response to junky

Here are the correct 62 and 61 factory air pulleys for small V-8's.
Paul

Attachment: IMG_0461.JPG (104.67 KB) 5 View(s)


Dual upper one piece pulley and 2 piece lower triple pulley


57 BelairHT 283/270hp 4 spd
62 ImpHT 327/300 4 spd
62 Imp CV SS 327/300HP 700R4
62 ImpHT SS 409/482 stroker 4 spd
62 Imp SS 409 - 5 spd Convertible under frameoff
Web http://paulstensland.com/


 
junky 
Valued Contributor
Posts: 2502

Loc: Northeast CT
Reg: 06-27-10
03-05-18 07:51 PM - Post#2726576    
    In response to pvs409

My lower pulleys are correct. The water pump pulley that is on the car is 6 7/8" diameter with a smaller center hole. The pulley that I need is 5 3/4" diameter, with the larger center hole. The 2 groove pulley is for the air conditioning. At this point, I have to get the car running, so I am headed to the local junk yard that has a 1962 6 cylinder car in there. I will get the pulley from that car, and the 4 blade fan, to get my car running. Over the next few weeks, I hope that I can find the correct parts at Spring Carlisle.

Never argue with an idiot. He'll drag you down to his level, then beat you with experience.


 
pvs409 
"6th Year" Gold Supporting Member
Posts: 2134
pvs409
Loc: Sergeant Bluff, Iowa
Reg: 01-10-05
03-05-18 08:16 PM - Post#2726581    
    In response to junky

Here is a original factory 327 and 409 5 bladed fan and a group of used fan clutches.
Paul


Attachment: IMG_0077.JPG (154.7 KB) 5 View(s)


factory 5 bladed fan for 250 and 300 HP 327's and all 409's in 1962 and 1963 and 1964. Used fan clutches for various years of Chevrolet's


57 BelairHT 283/270hp 4 spd
62 ImpHT 327/300 4 spd
62 Imp CV SS 327/300HP 700R4
62 ImpHT SS 409/482 stroker 4 spd
62 Imp SS 409 - 5 spd Convertible under frameoff
Web http://paulstensland.com/


 
Carl1962 
"6th Year" Silver Supporting Member
Posts: 1256
Carl1962
Loc: Bungendore Australia
Reg: 04-01-10
03-05-18 11:12 PM - Post#2726608    
    In response to pvs409

The top pulley for my 62 250hp 327 with factory air (build date 2nd week May) is 5 3/4".

Cheers, Carl.

1962 SS Impala Sports Coupe

http://s465.photobucket.com/albums/rr18/1956Carlo s...


 
Andy4639 
Frequent Contributor
Posts: 1100

Age: 57
Loc: Liberty, SC
Reg: 08-06-16
03-06-18 04:36 AM - Post#2726614    
    In response to Carl1962

That looks just like mine I pulled off a 62 in the local yard last summer for mine. man that thing pulls some air. I put a new Heavy duty clutch on it though.




1956 Bel Air - LT-1/4l60
1964 SS Impala -350 crate/powerglide
1967 Ramp truck - 350/ 4 speed
1971 C 10 - 6.0 LS / 4l80e 4:10 gears 30 years owner
94 Elderado
2000 S-10
2008 LTZ Tahoe
2011 Treverse


 
junky 
Valued Contributor
Posts: 2502

Loc: Northeast CT
Reg: 06-27-10
03-06-18 10:36 AM - Post#2726653    
    In response to junky

I am back to square one on this. The yard said that the 1962 was crushed a few months ago, so I am still in need of finding the correct water pump pulley. Searching all my parts books, I have determined that the correct part number is 3840463 and that it is a 5 3/4" diameter pulley with 2 grooves. If anyone has one to sell, please send me a PM. thansk Junk

Never argue with an idiot. He'll drag you down to his level, then beat you with experience.


 
Andy4639 
Frequent Contributor
Posts: 1100

Age: 57
Loc: Liberty, SC
Reg: 08-06-16
03-06-18 11:13 AM - Post#2726658    
    In response to junky

  • junky Said:
I am back to square one on this. The yard said that the 1962 was crushed a few months ago, so I am still in need of finding the correct water pump pulley. Searching all my parts books, I have determined that the correct part number is 3840463 and that it is a 5 3/4" diameter pulley with 2 grooves. If anyone has one to sell, please send me a PM. thansk Junk




I don't know if it's the same part number but a 71 C10 small block with factory air has the double pulley.
They may have one in the yard.




1956 Bel Air - LT-1/4l60
1964 SS Impala -350 crate/powerglide
1967 Ramp truck - 350/ 4 speed
1971 C 10 - 6.0 LS / 4l80e 4:10 gears 30 years owner
94 Elderado
2000 S-10
2008 LTZ Tahoe
2011 Treverse


 
junky 
Valued Contributor
Posts: 2502

Loc: Northeast CT
Reg: 06-27-10
03-06-18 12:42 PM - Post#2726668    
    In response to Andy4639

That is a larger diameter pulley. The research that I have done, indicates when the alternator moves from the left (drivers) side, to the right (passenger)side, the diameter of the pully became larger. This is why the 1963 and up pulleys won't work. Thanks for the suggestion.

Never argue with an idiot. He'll drag you down to his level, then beat you with experience.


 
pvs409 
"6th Year" Gold Supporting Member
Posts: 2134
pvs409
Loc: Sergeant Bluff, Iowa
Reg: 01-10-05
03-06-18 06:17 PM - Post#2726689    
    In response to junky

  • junky Said:
I am back to square one on this. The yard said that the 1962 was crushed a few months ago, so I am still in need of finding the correct water pump pulley. Searching all my parts books, I have determined that the correct part number is 3840463 and that it is a 5 3/4" diameter pulley with 2 grooves. If anyone has one to sell, please send me a PM. thansk Junk



Junk
I thought I sent you a private message on the 62 factory air upper dual groove pulley but I did not I have one and will send a response to you.

Its 5 3/4 inches or 5 7/8 ( I have 2 of them plus 2 on my 62 factory air cars.
Paul


Attachment: IMG_0463.JPG (91.28 KB) 4 View(s)


62 factory air upper pulley


Attachment: IMG_0464.JPG (97.84 KB) 4 View(s)


62 Chevy upper A/C pulley back side


57 BelairHT 283/270hp 4 spd
62 ImpHT 327/300 4 spd
62 Imp CV SS 327/300HP 700R4
62 ImpHT SS 409/482 stroker 4 spd
62 Imp SS 409 - 5 spd Convertible under frameoff
Web http://paulstensland.com/


 
junky 
Valued Contributor
Posts: 2502

Loc: Northeast CT
Reg: 06-27-10
03-06-18 07:58 PM - Post#2726698    
    In response to pvs409

I have found 3 differing diameter measurements in various book for the same part number. I believe that it is a matter of production variances, since the differences are extremely small.

Never argue with an idiot. He'll drag you down to his level, then beat you with experience.


 
Andy4639 
Frequent Contributor
Posts: 1100

Age: 57
Loc: Liberty, SC
Reg: 08-06-16
03-07-18 05:09 AM - Post#2726719    
    In response to junky

Don't know if this is right are not but it states it will work on a 62 Impala with 327 engine.


https://www.ebay.com/itm/263467841044?rmvS B=true



You may want to look here also.
https://picclick.com/?q=64+impala+water+pu mp+pulle...


1956 Bel Air - LT-1/4l60
1964 SS Impala -350 crate/powerglide
1967 Ramp truck - 350/ 4 speed
1971 C 10 - 6.0 LS / 4l80e 4:10 gears 30 years owner
94 Elderado
2000 S-10
2008 LTZ Tahoe
2011 Treverse


Edited by Andy4639 on 03-07-18 05:11 AM. Reason for edit: No reason given.

 
junky 
Valued Contributor
Posts: 2502

Loc: Northeast CT
Reg: 06-27-10
03-07-18 12:53 PM - Post#2726757    
    In response to Andy4639

Thanks for the link. Unfortunately, that water pump pulley is "Black 2 Groove Water Pump Pulley. This Water pump pulley is 6.40" diameter", which is much too large for the air condition application. Thanks to PVS409, I have one coming by USPS.

Never argue with an idiot. He'll drag you down to his level, then beat you with experience.


 
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