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1MyCoolingsystemisoverheating

My cooling system is overheating. Is that a sign my water pump is bad?

It could be. The water pump is responsible for the cooling system and pulling heat away from the engine. If the pulley is loose or if you notice ...
2Whyshouldwaterpumpbereplacedwithtimingbelt

Why should the water pump be replaced at the same time as the timing belt? 

It’s best practice to change both components at the same time because they usually wear out at the same pace and if one fails or is failing, the ...
3HowMuchmoreBoostCanIgainwithOverorUnderBalancer

How much more boost can I gain with an overdrive or underdrive balancer?

The Dayco Underdrive and overdrive balancers are a great way to increase the performance of your factory supercharged car. These balancers feature pulleys that are either larger or ...
4HowdoIknowifmyBalancerisBad

How do I know if my balancer is bad?

You’ll want to replace the balancer if you notice excessive vibration, crankshaft oil leaks, or deteriorated rubber ...
5WhydoesmyHPbalancerhavetwokeyways

Why does my high-performance balancer have two keyways?

The additional keyway is they if you plan to use a high-volume supercharger. A second keyway needs to be machined in the crank snout. If you do not ...
6Myengineismodifiedbutitstillhasfactorybalancer

My engine is modified but it still has the factory balancer. I want to upgrade, what performance bal...

The PowerBond™ by Dayco SS series uses the factory balance weights; The race balancer is for engines with zero balance. If you need help choosing the correct balancer for your engine build, please contact ...
7IheardImayneedaPinInmyBalancer

I heard that I may need to pin my balancer, what does that mean?

On some late model GM engines, the balancer is a press fit instead of using a keyway to hold it in place. This works fine until a supercharger ...
8Whatsthedifferencebetweeracingandstockbalancer

What are the differences between a stock harmonic balancer and a racing balancer?

The regular harmonic balancers are not meant for race cars but they offer engine builders and technicians a high-quality replacement to standard OEM balancers for everyday vehicles. Racing balancers are made ...
9TheOEbalancerdoesnothavekeywaydaycounitdoes

The OE/stock balancer does not have a keyway and the PowerBond by Dayco harmonic balancer unit does....

The Dayco balancer fits a multitude of applications, some of which do require the keyway. If yours does not, you can fill in the keyway with silicone ...
10Whataresignsthetensionerneedstobereplaced

What are signs the belt tensioner needs to be replaced?

A belt tensioner should be replaced if any of the following issues are noted: You hear noise or feel resistance as that could be a sign of potential ...
11 8SignsaPulleyneestobereplaced

How do I know if a pulley is bad?

There are several signs a pulley is no longer functioning properly. First, check for free rock. There should be no movement or play from side to side. Next, ...