Bad Tensioner
Thread Starter
Melting Slicks
Joined: May 2013
Posts: 3,012
Likes: 1,429
From: New Jersey
2025 Corvette of the Year Finalist - Unmodified
2024 C2 of the Year Winner - Unmodified
2024 C1 of the Year Finalist - Unmodified
2023 C2 of the Year Finalist - Unmodified
2023 C5 of the Year Winner - Unmodified
St. Jude Donor '25
Bad Tensioner
Hoping to get some insight regarding my tensioner? Seems to be bouncing around more than normal. Thoughts appreciated.
Drifting
Joined: Sep 2009
Posts: 1,862
Likes: 594
From: Prescott, Arizona
That is probably the tensioner pulley bearing starting to fail. The pulley can be replaced separately but the tensioner bearing can also wear and cause problems. If you confirm that the tensioner pullet bearing is bad, I might still replace both tensioner and pulley as a unit
If you have an automotive stethoscope, listen to all the components driven by the accessory drive belt. Something else may be causing the problem, like an idler pulley or water pump bearing. If you do not have a stethoscope, you need one for a bazillion reasons.
An alternative would be to remove the accessory drive belt and check every component by turning or spinning by hand.
If you have an automotive stethoscope, listen to all the components driven by the accessory drive belt. Something else may be causing the problem, like an idler pulley or water pump bearing. If you do not have a stethoscope, you need one for a bazillion reasons.
An alternative would be to remove the accessory drive belt and check every component by turning or spinning by hand.
Thread Starter
Melting Slicks
Joined: May 2013
Posts: 3,012
Likes: 1,429
From: New Jersey
2025 Corvette of the Year Finalist - Unmodified
2024 C2 of the Year Winner - Unmodified
2024 C1 of the Year Finalist - Unmodified
2023 C2 of the Year Finalist - Unmodified
2023 C5 of the Year Winner - Unmodified
St. Jude Donor '25
That is probably the tensioner pulley bearing starting to fail. The pulley can be replaced separately but the tensioner bearing can also wear and cause problems. If you confirm that the tensioner pullet bearing is bad, I might still replace both tensioner and pulley as a unit
If you have an automotive stethoscope, listen to all the components driven by the accessory drive belt. Something else may be causing the problem, like an idler pulley or water pump bearing. If you do not have a stethoscope, you need one for a bazillion reasons.
https://www.amazon.com/Lamoutor-Auto...xpY2s9dHJ1ZQ==
An alternative would be to remove the accessory drive belt and check every component by turning or spinning by hand.
If you have an automotive stethoscope, listen to all the components driven by the accessory drive belt. Something else may be causing the problem, like an idler pulley or water pump bearing. If you do not have a stethoscope, you need one for a bazillion reasons.
https://www.amazon.com/Lamoutor-Auto...xpY2s9dHJ1ZQ==
An alternative would be to remove the accessory drive belt and check every component by turning or spinning by hand.
