How does a timing pulley work?
Timing pulleys have teeth or pockets around the outside diameter of the pulley body. Timing teeth engage holes in the metal belt, while timing pockets engage drive lugs on a belt’s inner circumference. As the name implies, these teeth or pockets are used for timing.
How do you align the timing belt cover?
• After aligning the matchmark, hold the timing belt. And turn the crankshaft pulley clockwise, and align its groove with timing mark ”0” of the No.1 timing belt cover.
Why do you need to lock down the timing belt?
Even though belts will not last as long as a chain, they are quieter and often easier to line up correctly with the cam and crank locked down. Anytime the belt is removed, the cam and crank need to be aligned to TDC No.1, which is where the marks on the crankshaft pulley line up with the pointer on the front cover.
How do you remove the timing belt on a V6?
Relieve the tension on the timing belt by loosening the timing belt idler pulley bolt and pulley, and then remove the timing belt. There are two styles of tensioners used on the V6s — one is sealed, while the other has a service bolt on the backside.
Can a crank pulley be removed from a timing belt?
The crank pulley is the main pulley at the bottom of the engine. It needs to be removed in order to change the timing belt. However, it’s not easy if you only have hand tools, since the torque on this bolt is often pretty extreme.
How do you put a timing belt on a car?
To aid in this process, you can use spring-loaded clips to hold the belts on the pulleys as the belt is routed. With the belt in place, tighten the idler pulley bolt to 38 ft.-lbs. 13. Next, remove the retaining tool or pin from the auto-tensioner. Install the engine mount bracket to the front of engine.
Even though belts will not last as long as a chain, they are quieter and often easier to line up correctly with the cam and crank locked down. Anytime the belt is removed, the cam and crank need to be aligned to TDC No.1, which is where the marks on the crankshaft pulley line up with the pointer on the front cover.
Where are the dimples on the timing belt?
Put the transmission in neutral. Rotate the engine (via the crank bolt) clockwise until the dimples on the crank sprockets align with the dimples on the rear timing belt covers, and the line on crank pulley aligns with 0 degrees. The sprocket marks will not align perfectly; these dimples are for reference at this step only.
What’s the purpose of a timing belt tensioner?
Part 1 of 6: Purpose of the belt tensioner. The timing belt tensioner is used to do just that – keep tension on the timing belt. The timing belt is a rubber belt that runs over and through a series of pulleys and gears. Over time, due to age and heat, the belt will stretch out.