What is main and big end bearing?
Main Bearing – Located on the Crankshaft Main journals. Big End Bearing – Located at the ‘Big End’ of the Connecting Rod, where it connects to the Crankshaft. Flange Bearing/Thrust Washer – Located at the end or mid-way through the Crankshaft.
What causes big end bearing knock?
It is caused by wear or damage. When a vehicle’s connecting rods inside the bearings have excessive clearance, movement is affected. When the piston changes direction, metal hits metal and produces a knocking noise.
How does oil get to big end bearings?
By diagonal drillings in the crankshaft a continuous oil is fed to the big-end bearings from the oil grooves around the main-bearings liners. These drillings pass from the main-bearing journal to the big-end crankpins (Fig. 11.10) through the crankshaft web.
How long do big-end bearings last?
How long does a wheel bearing last? Wheel bearings have an average lifespan of 136,000 to 160,000 km (approximately 85,000 to 100,000 miles). This is only a rule of thumb though, the actual lifespan of a wheel bearing depends on the quality of the wheel bearing and the operating conditions.
What is the correct torque setting for a big engine head?
3sz-ve 1.5 torque settings for big end/main bearings/cylinder head. Here is a video on how to use a torque wrench which will help. Step 2 – 60 Nm.
What are the torque specs for the crankshaft seals?
Rear main crankshaft seal torque specs are 89 lb in (10nm). There is a sequence they need to be torqued in, hopefully this will help you since taking a pic right now is not possible for me.
How do you replace the bolts on a front wheel bearing?
Using the original bolts install bolts finger tight. Measure bearing bore to select proper bearing sizes. Remove and discard bolts and using new bolts install in same procedure with same torque specs.