car pulley belt

For decades, drive belts, V-belts, multi-vee-belts, and serpentine belts have been used to transmit power from the engine crankshaft pulley to components, like the power steering pump, air-con compressor, water pump, or cooling fans. Toothed Car Pulley Belt timing belts and timing chains, too, are accustomed to transmit power from the crankshaft to the camshafts, and some from the camshaft to camshaft, depending on engine design.

The drive belt, timing belt, or timing chain won’t work well, or for very long, if, with incorrect tension. A loose drive belt won’t drive the accessory reliably, slipping and making sound. Conversely, an excessively tight belt may cause item or pulley bearing damage. Various types of tensioner pulley keep long-term engine and item quietness and reliability.

Tightening or Loosening
Sometimes, maintenance or restoration will demand tightening or loosening a tensioner pulley. Changing a drive belt or timing belt, for instance, would require you to loosen a tensioner pulley to create room for the brand new belt, as the brand new belt is smaller sized compared to the worn drive belt.

You’ll need to tighten a tensioner pulley, in most cases, after the installing a fresh drive belt, or to modify for a stretched drive belt that hasn’t worn enough to warrant replacement. Extend belts don’t require tensioner pulleys but are “stretched” into place utilizing a special tool-always use the special tool to prevent belt damage.

Tensioner pulleys generally fall into two classes: accessory-integrated (AI) and non-accessory-integrated (NAI). Think of AI tensioners as adjustable accessories, such as an alternator, and NAI tensioners as adjustable idler pulleys. There are three types of tensioner pulleys and many ways to loosen them.
Mechanical tensioner pulleys are the simplest, the majority of common, and least susceptible to failure. There is one caveat, however, as mechanical tensioner pulleys require manual adjustment. This makes them susceptible to user error, resulting in insufficient or extreme belt stress. Additionally, they need to be adjusted to pay for belt stretch over time.