LT1 Burb:pully pictures 66 factory air 327 - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

LT1 Burb · 03-21-2013, 08:37 AM

I measured it to my original and it was the same, , I will contact the guy I got the water pump from and see what he has to say. Also found that the second groove on the water pump pulley is for a 2 pulley alternator.

LT1 Burb · 03-21-2013, 09:03 AM

Quote:

Originally Posted by Slow Build

These are some shots of the truck I took my AC out of. The crank pulleys are probably wrong because it's two pieces useing lug nuts as spacers between the two. The water pump pulley looks more correct for your application though.

Looks like yours is the same setup as Mark's.

LT1 Burb · 03-21-2013, 09:06 AM

Quote:

Originally Posted by HOTFUN

Either you have placed a spacer in front of the WP hub and behind the cast 3 groove water pump pulley or the new water pump hub was not pressed on the shaft far enough which I am betting it isn't. You could measure the the hub face surface distance to the pump casting and compare that to the original water pump hub distance or maybe someone here has a correct waterpump for measurement to compare. Then you will have to remove the wp rear cover and press the hub down the required distance with the the back of the shaft held in the press. The pulley just needs to go on further so the ac belt can ride in the outer water pump groove,to the second crank pulley groove, and over ac compressor.

Hey Mark, any pics of your 16K 74, those trucks are killer.

**yelmer** · 03-21-2013, 08:25 PM

on mine the line up is a little off but very close it works good

LT1 Burb · 03-21-2013, 09:03 PM

Quote:

Originally Posted by yelmer

on mine the line up is a little off but very close it works good

Does it look closer than mine. I put belts on it and you couldn't really tell but I am an HVAC tech and we always align the belts properly.

LT1 Burb · 03-22-2013, 09:29 AM

I checked my water pump and the hub is bang on with the other 2 I have. I think I am going to mill a 1/4" off of the top pulley to get it closer and call it good.

**HOTFUN** · 03-22-2013, 03:29 PM

Did you string check the compressor and crank to verify it was all off at the water pump pulley? Seems odd it would be off that much to me from factory. The water pump is the non original component from the assembly line and if the once replaced leaking water pumps over the years were all reman, aftermarket, or rebuilt and may not be the same hub depth specs as the original set up was. I'll have to get that 74 16k C10 out of storage for pictures one of these days.

LT1 Burb · 03-22-2013, 06:40 PM

Quote:

Originally Posted by HOTFUN

Did you string check the compressor and crank to verify it was all off at the water pump pulley? Seems odd it would be off that much to me from factory. The water pump is the non original component from the assembly line and if the replaced leaking water pumps over the years were all reman, aftermarket, or rebuilt and were may not be the same hub depth specs as the original set up was. I'll have to get that 74 16k C10 out of storage for pictures one of these days.

Yeah, the power steering pump and AC compressor line up, the water pump is bang on with the other I have. Problem is I am piecing this together so I don't know what it should be.

LT1 Burb · 03-30-2013, 12:07 PM

Well just tried another AC pulley and it is off also, I am so done with this. I am going to pull off the water pump and check it.

LT1 Burb · 04-26-2013, 09:22 AM

Got it fixed, I pushed the water pump hub on a little more.

GerhardH · 06-15-2020, 03:26 PM

It is really strange. I have exactly the same cast iron pulley in my truck C-20 Z81 Camper, C60 Air Conditioning include HD radiator, N40 Power Steering.
Furthermore I could not really identify the GM part number (see picture).
So I thrusted your posted number 3868559.

I searched round about 8 hours in the whole internet, nearly nothing. On the end 2 sources for evidence.

1) Impala GM part cataloque 1967
2) Ebay (I bought immediatly :-))

Would be good to know , what exactly was included in "Heavy duty cooling" and "All-weather air conditioning".

Regarding the clutch:
http://67-72chevytrucks.com/vboard/s...d.php?t=480545

Smokinhart · 04-01-2022, 11:39 AM

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03-21-2013, 08:37 AM	#26
LT1 Burb Registered User Join Date: Sep 2010 Location: Winchester Oregon, formerly Vancouver BC Posts: 2,949	Re: LT1 Burb:pully pictures 66 factory air 327 I measured it to my original and it was the same, , I will contact the guy I got the water pump from and see what he has to say. Also found that the second groove on the water pump pulley is for a 2 pulley alternator. Last edited by LT1 Burb; 03-21-2013 at 09:04 AM.

03-21-2013, 08:25 PM	#29
yelmer Registered User Join Date: Aug 2008 Location: greeley colorado Posts: 1,360	Re: LT1 Burb:pully pictures 66 factory air 327 on mine the line up is a little off but very close it works good

03-22-2013, 09:29 AM	#31
LT1 Burb Registered User Join Date: Sep 2010 Location: Winchester Oregon, formerly Vancouver BC Posts: 2,949	Re: LT1 Burb:pully pictures 66 factory air 327 I checked my water pump and the hub is bang on with the other 2 I have. I think I am going to mill a 1/4" off of the top pulley to get it closer and call it good.

03-22-2013, 03:29 PM	#32
HOTFUN Senior Member Join Date: Jan 2001 Location: Lincoln, Nebraska Posts: 2,141	Re: LT1 Burb:pully pictures 66 factory air 327 Did you string check the compressor and crank to verify it was all off at the water pump pulley? Seems odd it would be off that much to me from factory. The water pump is the non original component from the assembly line and if the once replaced leaking water pumps over the years were all reman, aftermarket, or rebuilt and may not be the same hub depth specs as the original set up was. I'll have to get that 74 16k C10 out of storage for pictures one of these days. __________________ '66 CST BBW swb fleet 327 fac ac '67 CST 4x4 swb 327 stepside project '72 Cheyenne K20 50k original '72 Cheyenne Super K20 project '73 Sierra swb 4x4 frame off in paint stage '74 Cheyenne Super swb w/16k actual '71 & 72 Cheyenne K10 4x4 swb's '70 426 HEMICUDA conv SHAKER 4 sp Dana 60 '60 Impala conv 327 PG fac ac loaded 3rd owner '72 GMC K2500 4x4 '59 Apache CST BBW fleetside swb 283 '73 ElCamino SS LS1 T56 true SS bucket tach '76 ElCamino SS 52k survivor '87 Grand National 41k True 2nd to last built in 1987. '86 K30 454 SRW fleetside CA since new '88 Trans Am GTA 39k bought new 2018 DEMON plum crazy @ 840HP! "Need for speed" Last edited by HOTFUN; 03-22-2013 at 10:33 PM.

03-30-2013, 12:07 PM	#34
LT1 Burb Registered User Join Date: Sep 2010 Location: Winchester Oregon, formerly Vancouver BC Posts: 2,949	Re: LT1 Burb:pully pictures 66 factory air 327 Well just tried another AC pulley and it is off also, I am so done with this. I am going to pull off the water pump and check it.

04-26-2013, 09:22 AM	#35
LT1 Burb Registered User Join Date: Sep 2010 Location: Winchester Oregon, formerly Vancouver BC Posts: 2,949	Re: LT1 Burb:pully pictures 66 factory air 327 Got it fixed, I pushed the water pump hub on a little more.

06-15-2020, 03:26 PM	#36
GerhardH Registered User Join Date: Aug 2017 Location: South Germany Posts: 527	Re: LT1 Burb:pully pictures 66 factory air 327 It is really strange. I have exactly the same cast iron pulley in my truck C-20 Z81 Camper, C60 Air Conditioning include HD radiator, N40 Power Steering. Furthermore I could not really identify the GM part number (see picture). So I thrusted your posted number 3868559. I searched round about 8 hours in the whole internet, nearly nothing. On the end 2 sources for evidence. 1) Impala GM part cataloque 1967 2) Ebay (I bought immediatly :-)) Would be good to know , what exactly was included in "Heavy duty cooling" and "All-weather air conditioning". Regarding the clutch: http://67-72chevytrucks.com/vboard/s...d.php?t=480545 Attached Images __________________ Best regards GerhardH! Members met: 68 short step, 68bowtie, 72c20customcamper, botmfedr1, C/10 King, Chevyland, cornerstore, dmjlambert, fun in dirt, GMan69, Ol Blue K20 1968 CHEVROLET C20 Custom Camper 50th Anniversary, Long bed (LB) 8', 327 V8, Air Condition (AC), Power Steering (PS), Power Brake (PB), Z62 Custom & Comfort Appearance, Turbo Hydramatic TH 400 http://67-72chevytrucks.com/vboard/s...d.php?t=760400 Last edited by GerhardH; 06-15-2020 at 04:24 PM.

04-01-2022, 11:39 AM	#37
Smokinhart Registered User Join Date: Sep 2012 Location: Manhattan, Kansas Posts: 31	Re: LT1 Burb:pully pictures 66 factory air 327 Please note that you must be a supporting member to post classified items. This includes but is not limited to What Its Worth, Want To Buy, Want To Trade, and For Sale. Please consider supporting the forum by subscribing. Further information on the subscription levels available are located here If you need any further assistance with that please contact any Admin for help. __________________ 1969 swb. 5.7 TBI. 700r4 255/50r17 on AR PVD coated rims Last edited by cwcarpenter98; 04-01-2022 at 02:03 PM.



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