Belt tensioner going bad? - ZR-1 Net Registry Forums

mimzr1 · 06-29-2010

Hello All,

My accessory drive belt is starting to wear or fray badly on one side, the
side closest to the radiator. I have a replacement belt. Should I replace the
belt tensioner pulley as well? Thanks!

-Mim
'93 40th Anniversary #438
77K miles

sammy · 06-29-2010

i would ck to see if the tensioner pulley turns without wobbling,if it doesnt wobble and turns freely i dont think its a problem . at least thats what i checked when i put randys pulleys on my car

bdw18_123 · 06-29-2010

Also, make sure that the pulley isn't cracked or worn in a weird way where the belt contacts it.

BlackWidow#2 · 07-02-2010

Hi Mim, I hope you are soon cruising in tip top shape.
Best regards, George

Paul Workman · 07-08-2010

Well, the tensioner is but one pully that could be cockeyed enough to cause that. If you don't see anything wrong, take the belt off and see if there are other pulleys that wobble. And, verify all accesory bolts are in place and are not loose.

If in fact your tensioner pully is bad, and a ZR-1 pully can't be found, I can attest that an LT1 pulley works just fine.

Good luck!

P.

Zr1 Destroyer · 07-10-2010

Autozone has the pulley in stock and it's around $10 if I remember right.

06-29-2010	#1
mimzr1 Join Date: Aug 2005 Location: Campbell, CA Posts: 9	Belt tensioner going bad? Hello All, My accessory drive belt is starting to wear or fray badly on one side, the side closest to the radiator. I have a replacement belt. Should I replace the belt tensioner pulley as well? Thanks! -Mim '93 40th Anniversary #438 77K miles

06-29-2010	#3
bdw18_123 Join Date: Apr 2009 Location: Prather, CA Posts: 809	Re: Belt tensioner going bad? Also, make sure that the pulley isn't cracked or worn in a weird way where the belt contacts it. __________________ [IMG]http://i13.photobucket.com/albums/a292/bdw18_123/_zr1netforumsigphoto.jpg[/IMG][B] 1990 Corvette ZR-1 [/B][I] White/Flame Red, #2299, mostly stock, 144K miles.[/I] -Cams timed to the '93-'95 405HP LT5 stock timing. -IAT sensor relocated to below front bumper. -Haibeck hoops installed in airduct. -OBX cat-back exhaust. [COLOR=DarkRed][B](SOLD - December 2012 [/B][/COLOR][COLOR=DarkRed][B]:hello:)[/B][/COLOR] 1993 Corvette Coupe Black/Black, 6-speed (SOLD - October 2009 :hello:)

07-08-2010	#5
Paul Workman Join Date: Nov 2007 Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri Posts: 6,493	Re: Belt tensioner going bad? Well, the tensioner is but one pully that could be cockeyed enough to cause that. If you don't see anything wrong, take the belt off and see if there are other pulleys that wobble. And, verify all accesory bolts are in place and are not loose. If in fact your tensioner pully is bad, and a ZR-1 pully can't be found, I can attest that an LT1 pulley works just fine. Good luck! P. __________________ Good carz, good food, good friendz = the best of timez! 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry

07-10-2010	#6
Zr1 Destroyer Join Date: Oct 2005 Location: Candy Apple...yUmMy Posts: 1,137	Re: Belt tensioner going bad? Autozone has the pulley in stock and it's around $10 if I remember right.

06-29-2010	#2
sammy Join Date: Jun 2010 Location: back in lone pine Posts: 591	Re: Belt tensioner going bad? i would ck to see if the tensioner pulley turns without wobbling,if it doesnt wobble and turns freely i dont think its a problem . at least thats what i checked when i put randys pulleys on my car

07-02-2010	#4
BlackWidow#2 Join Date: Feb 2004 Location: Pittsburgh, PA Posts: 149	Re: Belt tensioner going bad? Hi Mim, I hope you are soon cruising in tip top shape. Best regards, George __________________ [SIGPIC][/SIGPIC]George C 91 Black/Black ZR1, #2 of 8 black widow cars 15 black/red Z06 :hello: