TDC – Top Dead Centre is traditionally the position of an internal combustion engine’s piston when it is at the very top of its stroke. BDC – Bottom Dead Centre is the opposite, when the piston is at the very bottom of its stroke.

What is bottom dead center?

TDC – Top Dead Centre is traditionally the position of an internal combustion engine’s piston when it is at the very top of its stroke. BDC – Bottom Dead Centre is the opposite, when the piston is at the very bottom of its stroke.

How can I get TDC without timing marks?

Place a ratchet and socket on the large bolt in the center of the crankshaft. Place a finger over the spark plug hole and turn the crankshaft clockwise. When you feel pressure against your finger, the piston is coming up on the compression stroke.

How serious is a timing cover leak?

The real danger of driving with a timing cover oil leak, besides a low oil level, is getting engine oil on your engine belt. The oil will degrade your engine belt quickly and can allow it to slip on the pulleys it drives which causes a new set of problems and can leave you stranded and damage your engine.

What causes timing cover to leak?

Over time and due to exposure to heat, dirt, road grime, and more, the gasket can often become cracked or wear out. This will reduce the tightness of the timing cover and may result in oil escaping the engine and leaking onto the ground.

How do you measure a harmonic balancer?

Multiply the damper diameter by 3.14159 (Pi), then divide by 360°. The answer is the distance in inches for one degree. For a 30° timing mark, multiply this value by 30. Cut out this distance on a strip of paper to avoid a straight line measurement.

How do you install a harmonic balancer timing tape?

  1. Locate the top-dead center or “0” degree mark on the. harmonic balancer or timing wheel.
  2. Select the correct timing tape for your application. Make. sure you know the correct size of the harmonic balancer.
  3. Choose the timing tape that matches your balancer’s. diameter.
  4. Align the 0 degree mark on the tape with the TDC mark.