How much play should a crankshaft have?

You should shoot for . 004 to . 005″ rod side clearance and enough crank end play to to prevent binding between the bearings when at temp.

What causes crankshaft endplay?

Crankshaft End Play Worn thrust bearings occur primarily in older vehicles with manual transmissions. Overloading and misalignment cause damage to these bearings. Excessive end play is evident after removing the oil pan. It damages and wears the crankshaft, main caps, and engine block where the crankshaft rides.

How do you check End play shaft?

The end play should be verified by checking the axial movement of the shaft. The shaft should be moved in each direction and loaded with a force equal to between 50 to 150 psi bearing unit load.

What could misaligned main bearing bores cause?

Misalignment of main bearing bores can be caused by crankcase distortion or improper machining tolerances. This leads to inconsistent loading across the bearing surface and areas of concentrated loading that can accelerate surface fatigue.

What does a bad thrust bearing sound like?

A worn thrust bearing has increased clearances between its rollers. This allows the bearing to move around in its seat excessively, which can lead to rattling, squealing or growling noises coming from the transmission. These noises are usually most noticeable when the clutch pedal is pressed down to release the clutch.

What is end play on a shaft?

End play is the total distance the shaft can move between the two thrust bearings and is sometimes called float, thrust bearing clearance or axial clearance. As end play becomes larger, the unloaded (slack) bearing will see a larger gap.

What is crankshaft end play definition?

Crankshaft “end play” is measured as the clearance between the crankcase thrust washer and the axial mating surface of the crankshaft (see Figure 1).