Fan belt length? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**MJN** · 05-06-2002, 10:22 AM

How long is the fan belt supposed to be on a '72? I think I got a 51" or something on it and it's at the end of the adjustment. I changed the crank pulley to make the squealing stop but at about 5K it still squeals. I need a little more adjustment like maybe a half inch smaller or so, not much more.

*Fast68Chevy* · 05-06-2002, 01:56 PM

take string and wrap all around all thje pullies for that belt and ,easure length of string used and go to napa and tell them what you want, they are 155mm wide, IE the part number starts with 15

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Randy- Lincoln, IL
randy@ccaonline.com 2177353230
*many GM parts bought, traded, or sold -am parting out: '81 Cutlass Supreme Brougham

current fleet: -71 C-10 350/CH465/3.07- basketcase, #1
-90 Cavalier 2.2L sky blue, driver, was free
-84 Z28 5.0L/700R4/3.73 daily driver
-84 Firebird/SE 2.8L/T-5/3.73/engine bad, project #2
-82 purple Trans Am, project #3
*Paint is overrated*
© RSS Enterprises 2000

Project1970 · 05-06-2002, 05:38 PM

I hope you meant 15, not 155mm there, Fast.

Just take it back and ask for an inch smaller; even the guys working the Autozones and Checkers around here are smart enough to grab one of those. That's what I did when the belts in their computers were a bit too long for mine.

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Project 1970 - soon to be seen at http://milhouse.treylis.org:81/

*Fast68Chevy* · 05-06-2002, 05:54 PM

lol damn keyboard.. 15mm is why 15 beginning belt code

05-06-2002, 10:22 AM	#1
MJN Registered User Join Date: Feb 2000 Location: Maquoketa, Ia/ Orr, Mn Posts: 3,045	Fan belt length? How long is the fan belt supposed to be on a '72? I think I got a 51" or something on it and it's at the end of the adjustment. I changed the crank pulley to make the squealing stop but at about 5K it still squeals. I need a little more adjustment like maybe a half inch smaller or so, not much more. __________________ '51 South Bend Model "9A" '56 Chevy 3600 NAPCO '74 Chevy Cheyenne Super K20-restored on 37's '72 GMC Sierra Custom K2500- in progress '08 GMC Envoy Denali '12 GMC Sierra 2500HD Denali '17 GMC Yukon XL VCCA member #58596 http://www.nohrco.com

05-06-2002, 01:56 PM	#2
Fast68Chevy Account Suspended Join Date: May 2000 Location: IL Posts: 0	take string and wrap all around all thje pullies for that belt and ,easure length of string used and go to napa and tell them what you want, they are 155mm wide, IE the part number starts with 15 ------------------ Randy- Lincoln, IL randy@ccaonline.com 2177353230 many GM parts bought, traded, or sold -am parting out: '81 Cutlass Supreme Brougham current fleet: -71 C-10 350/CH465/3.07- basketcase, #1 -90 Cavalier 2.2L sky blue, driver, was free -84 Z28 5.0L/700R4/3.73 daily driver -84 Firebird/SE 2.8L/T-5/3.73/engine bad, project #2 -82 purple Trans Am, project #3 Paint is overrated* © RSS Enterprises 2000

05-06-2002, 05:38 PM	#3
Project1970 14.1 @ 96MPH Join Date: Jul 2001 Location: Mesa, AZ Posts: 2,811	I hope you meant 15, not 155mm there, Fast. Just take it back and ask for an inch smaller; even the guys working the Autozones and Checkers around here are smart enough to grab one of those. That's what I did when the belts in their computers were a bit too long for mine. ------------------ Project 1970 - soon to be seen at http://milhouse.treylis.org:81/ __________________ Project1970 - LS1 Swap Complete!

05-06-2002, 05:54 PM	#4
Fast68Chevy Account Suspended Join Date: May 2000 Location: IL Posts: 0	lol damn keyboard.. 15mm is why 15 beginning belt code



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