Video: belt tensioner and harmonic balancer - ZR-1 Net Registry Forums

1971 Judge · 08-11-2017

Guys,

Video is not great as its from my iPhone, but can you watch this video and let me know if the "wobble" noise off of the belt tensioner is Ok-acceptable?

The car has 27k miles and a new serpentine belt. I also did my best to get some decent video of the harmonic balancer. Thought please.

https://www.youtube.com/watch?v=BZkfUXWzdLo

Ccmano · 08-11-2017

Can't make out the balancer, but that does not sound good. Sounds like the tensioner. Was the A/C on at the time? Need to rule out that, the alternator and PS pump. But does sound like the tensioner.

Always amazes me the issues low mile cars have. All that inactivity really is not good. Seals dry out and bearings seize.
H

XfireZ51 · 08-11-2017

I just went thru this in April. Look to replace the pulley on the tensioner. And if the belt is old, replace it.

1971 Judge · 08-11-2017

Quote:

Originally Posted by XfireZ51

I just went thru this in April. Look to replace the pulley on the tensioner. And if the belt is old, replace it.

Thanks Guys,

A/C was not on...belt is brand new.

I'll order a new tensioner from Jerry's.

Appreciate the help!

1971 Judge · 08-11-2017

Quote:

Originally Posted by Ccmano

Can't make out the balancer, but that does not sound good. Sounds like the tensioner. Was the A/C on at the time? Need to rule out that, the alternator and PS pump. But does sound like the tensioner.

Always amazes me the issues low mile cars have. All that inactivity really is not good. Seals dry out and bearings seize.
H

You statement is so correct! This car sat for 10 years, that means NO maintenance. So, guess what I've been doing? Driving it, listening, watching and asking. I've replaced windshield wipers, fixed the A/C, new serpentine belt, tires, rotors, brake pads, all fluids radiator to diff, new FX-3 shocks and actuators (Thank You Captain Z) and exhaust. Now I'm noticing the smaller, but important details. Appreciate everyone's eyes and ears, love the car, but needs TLC to be safe and reliable.

08-11-2017	#1
1971 Judge Join Date: May 2017 Location: Grapevine Posts: 56	Video: belt tensioner and harmonic balancer Guys, Video is not great as its from my iPhone, but can you watch this video and let me know if the "wobble" noise off of the belt tensioner is Ok-acceptable? The car has 27k miles and a new serpentine belt. I also did my best to get some decent video of the harmonic balancer. Thought please. https://www.youtube.com/watch?v=BZkfUXWzdLo __________________ -------------------- 2008 Black Z06 3LZ 1990 ZR-1 #1797 1979 Trans Am 1971 GTO Judge tribute Last edited by 1971 Judge; 08-11-2017 at 07:34 PM.

08-11-2017	#2
Ccmano Join Date: Jun 2006 Location: Sparks, NV Posts: 2,852	Re: Video: belt tensioner and harmonic balancer Can't make out the balancer, but that does not sound good. Sounds like the tensioner. Was the A/C on at the time? Need to rule out that, the alternator and PS pump. But does sound like the tensioner. Always amazes me the issues low mile cars have. All that inactivity really is not good. Seals dry out and bearings seize. H __________________ 90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold.

08-11-2017	#3
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,700	Re: Video: belt tensioner and harmonic balancer I just went thru this in April. Look to replace the pulley on the tensioner. And if the belt is old, replace it. __________________ [SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX