How do you check the bearing clearance on a feeler gauge?
During the measurement, the roller at the measuring point should be lightly pressed against the guide ring between the two roller rows and the feeler gauge blade be inserted to the middle of the roller. The measured internal clearance must be the same for both rows of rollers.
What kind of oil do you need for wider bearing clearances?
Wider bearing clearances do require a heavier viscosity oil (such as a 20W50 multi-viscosity oil or a straight 30, 40 or 50 oil). The heavier viscosity oil is absolutely necessary with wider clearances to maintain the oil film between the bearing and shaft so the bearing isn’t starved for lubrication.
Is it better to build an engine with tighter bearing clearances?
Is it better to build an engine with tighter bearing clearances and run it on low viscosity synthetic motor oil, or is it better to build an engine with more traditional or even looser bearing clearances and use heavier viscosity oil?
Which is better 5W20 or 10W30 motor oil?
This enables the 5w20 motor oil to reach engine parts quicker and create less drag that reduces fuel economy. So, due to viscosity, 5w20 is a thinner oil during operating temperatures, whereas 5w30 is thicker during operating temperatures.
What’s the best oil change grade for a 2002 Ford?
Ford Motor Company now recommends SAE 5W-20 viscosity grade for servicing most gasoline and flexible fueled vehicles. All 2001 and 2002 vehicles where SAE 5W-20 is specified should be serviced at the recommended oil change intervals using SAE 5W-20.
Wider bearing clearances do require a heavier viscosity oil (such as a 20W50 multi-viscosity oil or a straight 30, 40 or 50 oil). The heavier viscosity oil is absolutely necessary with wider clearances to maintain the oil film between the bearing and shaft so the bearing isn’t starved for lubrication.
Is it better to build an engine with tighter bearing clearances and run it on low viscosity synthetic motor oil, or is it better to build an engine with more traditional or even looser bearing clearances and use heavier viscosity oil?
How is the oil clearance on a crankshaft measured?
The oil clearance is the gap between the inside diameter of an installed bearing and the outside diameter of the crankshaft or camshaft journal. The clearance is measured 90 degrees to the bearing parting line, which is the thickest part of the bearing (bearing thickness tapers slightly toward the parting line).
What kind of oil should I use to break in a new engine?
Opinions vary as to whether or not you should use a straight weight SAE 30 motor oil or a multi-viscosity oil breaking in a new engine. Straight weight oils contain no friction modifiers which are used to give multi-viscosity oils their wide temperature range.