Table of Contents
What causes oil level to rise?
If the oil is milky, you have a water leak. This could be caused by a cracked cylinder head, manifold or leaking head gasket. If the oil looks clean, you may have a bad fuel pump.
What could be the most likely reason for an increase in the viscosity of a diesel engine lubricating oil during operation?
In some cases, a high rate of oil consumption that favors lower boiling point lubricating oil components can cause the viscosity increase of the oil remaining in the engine to become excessive [1975] . Lower oil consumption can also reduce the need to add oil between oil changes.
What causes too much oil in a diesel engine?
The most common cause of excessive oil temperature is a blockage in the oil galleries in the oil cooler. If the oil cooler isn’t working properly the oil will not be cooled to normal temperatures. Usually, but not always, a restriction in the oil cooler will not cause low oil pressure in the engine.
What are the possible causes of high oil consumption in the lubrication system of an engine?
Detailed Solution
| Causes | Remedies |
|---|---|
| Valve oil seal damaged | Replace oil seal |
| Piston/rings wornout | Replace piston/rings |
| Engine oil low viscosity | Replace the oil |
| Oil reaching in exhaust manifold | Replace exhaust valve guides and valve stems |
What if the oil level is too high?
With too much oil in your engine, its fluid level in the oil pan will be so high that it can be splashed by some of the moving parts in the engine block, specifically the crankshaft lobes and connecting rod “big ends.” That, in turn, can whip the oil into a frothy consistency, like a well-emulsified salad dressing.
Why additives are added to lubricants?
The primary function of Lubricant additives is to improve the properties of the base stock under different operating conditions and the high performance requirements of any machinery. Lubricant additives are chemical components that need to blend well with the base oil to function as a single fluid.
What does it mean if a diesel is blowing white smoke?
White smoke often occurs when there is either too much fuel being injected into the combustion chamber, or not enough heat to burn the fuel. Un-burned fuel travels through the exhaust system & exits out the tailpipe which will produce a scent of rich, un-burnt diesel.
How do you fix high oil consumption?
There are several ways to potentially reduce your engine oil consumption. If the cause of the high engine oil consumption is a leak around the piston rings, you may be able to have your piston rings replaced in order to prevent future leaks. Replacing the valve seals may also help to fix oil leaks.
How can I lower my oil level?
There’s nothing high-tech about the procedure: Loosen the drain plug like you do for an oil change and let out a cup or two at a time. Then snug the drain plug, start and idle your engine for a minute, shut it down, and then recheck the dipstick, wiping it once and then putting it back in for a correct reading.
What is the main engine lubricating oil sump?
The main engine lubricating oil sump is a large space used to store lubricant surrounded by cofferdams. It is located below the crankcase under the main engine in double bottom. It is the location in the engine room where all the lubricating oil needed for the main engine operation is stored in one place.
What causes sump level to increase in 2 stroke engine?
Increasing of sump level in main engine (2 stroke) can be because of water or fuel mixing. The other reason can be incorrectly set lube oil line,such that lube oil is coming from reserve tank to sump tank. Fuel can mix with lube oil from fuel pump,if umbrella seal of pump is leaking.
How does the lube oil system work in an engine?
3) Main Engine Lubricating Oil Pump The lube oil system contains two screw pumps used to deliver lubricating oil to all the parts of the engine. Under normal conditions, one pump is operational while the other on standby. The pump takes suction from the engine sump/drain tank and pumps it to the distribution manifold via filter and cooler.
What is the temperature of the lubricant in the engine?
If it reaches or goes beyond 60 o C; an alarm will come and the engine will slow or shut down based on the lubricant temperature. Thus to maintain lubricant temperature at 45 o C; lube oil coolers are installed in the system. In a typical lubricating oil cooler, the lube oil passes through the pipes with water surrounding it.