Problems with main bearings normally show up as a rumble.
Big end bearings rattle.
It can mean that the engine has a bad main bearing. Can also mean one of the pistons are bad.
A lower engine knock is usually a bad bearing on the crankshaft. Could be a rod bearing or a main bearing.
main bearing whats happens when goin out
You can tell if the main thrust bearing is bad by simply checking out the oil. If you notice little metal particles, chances are the thrust bearing has spoiled.
the torque setting for the the main bearings of the Toyota 2c engine is 103 Nm. The rid bearing caps are 59 Nm
Don't understand your question...... If you mean the rear main bearing in the engine ... then NO.
Probably a bad rod bearing
the clearance is measured at the top of the bearing with the help of a feeler gauge
Main bearings are what the crankshaft rotates on.
A main bearing bore refers to the cylindrical opening in an engine block where the main bearings are housed. These bearings support the crankshaft and allow it to rotate smoothly, reducing friction and wear. The bore's size and precision are critical for engine performance, as they affect the alignment and clearance of the crankshaft. Proper maintenance and machining of the main bearing bore are essential for the longevity and efficiency of the engine.
To measure the main bearing clearance on a four-stroke marine diesel engine, first, ensure the engine is cool and properly secured. Remove the oil pan and main bearing caps, then clean the bearing surfaces. Use a feeler gauge to measure the gap between the crankshaft and the bearing shell; insert the gauge at multiple points around the bearing to account for any uneven wear. Record the measurements to assess if they are within the manufacturer's specified tolerances for proper engine operation.
Bad bearing or rod