What is the solution to oil leakage from valve cover of 912 model diesel engine

Oil leakage in the timing compartment of an engine can be caused by a variety of factors. Some common causes include:

1. Worn or damaged valve cover gasket: The valve cover gasket is responsible for preventing oil from leaking out of the timing compartment. If this gasket becomes worn or damaged, oil can leak out of the compartment.
2. Worn or damaged timing chain cover gasket: The timing chain cover gasket is responsible for preventing oil from leaking out of the timing compartment. If this gasket becomes worn or damaged, oil can leak out of the compartment.
3. Worn or damaged oil pan gasket: The oil pan gasket is responsible for preventing oil from leaking out of the timing compartment. If this gasket becomes worn or damaged, oil can leak out of the compartment.
4. Worn or damaged crankshaft seal: The crankshaft seal is responsible for preventing oil from leaking out of the timing compartment. If this seal becomes worn or damaged, oil can leak out of the compartment.
5. Worn or damaged camshaft seal: The camshaft seal is responsible for preventing oil from leaking out of the timing compartment. If this seal becomes worn or damaged, oil can leak out of the compartment.
6. Worn or damaged Timing chain tensioner: Timing chain tensioner is responsible for maintaining proper tension on the timing chain. If this tensioner becomes worn or damaged, oil can leak out of the compartment.
7. Worn or damaged Timing Chain: Timing chain is responsible for maintaining proper timing of the engine. If the timing chain becomes worn or damaged, it can cause oil leakage in the timing compartment.
8. Low oil level: If the oil level in the engine is low, it can cause oil to leak out of the timing compartment.

It's important to address oil leaks as soon as possible, as they can lead to serious engine damage if left unchecked. To determine the exact cause of oil leakage, it's best to consult with a mechanic or take the car to the service center.

It would help to know just what it is you are working on, but it reads like you might have an oil leak on an engine, maybe around the valve cover area? Alot of times you can drastically reduce the amount of leakage by snugging up the bolts that hold the valve cover to the head, but once a gasket gets some age and shrinks up, you will usually still have some seepage. As far as using a heavier weight oil, it is not recommended for a newer engine. Engines that have been designed in the last 10-15 years have such tight tolerances and small diameter oil galleys a thick oil will not circulate and will starve the engine of oil.

if the oil level drops with no apparent leaks ,then it is being burnt in the engine either by going past the rings, being burnt in the sump by having worn rings , pushed out past the PCV valve . have a compression test to gauge the condition of the engine.

If there are no oil leaks and the engine oil is going down, the engine is burning the oil. The main cause is loose valve guides and/or valve guide seals. The other cause could be stuck piston rings.

It sounds like wear on the bearing which means at high revs the shaft is moving and vibrating too much for the oil seal flexibility to seal. Cheapest first step try s New oil seal. If no luck then it's probably going to need bearings. If this is not what you want give more details,ie, what engine exactly ad fitted to what?

1. Heat dissipation, cooling and clogging of the lubrication system cause the diesel engine to overheat.

Blockage of radiator or pipeline: once the radiator and pipeline are blocked, the cooling water cannot circulate and the diesel generator will overheat.

Exhaust pipe blockage:When the exhaust pipe is blocked, when the diesel generator is running, the exhaust gas is not discharged smoothly, and some of the exhaust gas remains in the cylinder. When the next intake stroke is intake, there are more in the cylinder. Exhaust gas, fresh oil and gas mixture can not fully come in. When the spark plug is ignited, the flame propagates and burns slowly, and then burning time is long, forming a post-combustion. Parts that are in contact with gas, because of the long burning time, can not release heat, thus causing overheating, at the same time, due to the unsmooth exhaust gas emissions, the exhaust gas temperature rises significantly when exhausting, and the thermal load of the entire diesel generator increases, causing the generator to appear overheat.

Oil filter plugging: Under normal conditions, the oil of the diesel generator enters the diesel engine through the oil filter. Once the oil filter is blocked, the oil enters the lubrication points of the diesel engine only through the bypass passage. In this way, since the oil is not filtered, it is easy to bloc the oil pipeline, causing poor lubrication, the oil pipeline is blocked, and the heat generated by the friction coupler can not dissipated, causing the generator to overheat.

Oil screen plugging: The oil filter is placed at the inlet of the oil absorber in the oil sump to remove foam and prevent large slag from entering the oil pump. Once the oil filter network is blocked, the supply of lubricating oil to the diesel generator is interrupted, which will cause dry friction of the friction coupler of the diesel generator, which will cause the generator to overheat.

2. The cooling system and the lubrication oil system leak, causing the diesel engine to overheat.

Leakage of the radiator or pipeline: The radiator or pipeline leaks. Because the water storage capacity of the diesel tank is limited, the generator will overheat.

Oil pan or oil pump oil leakage: The oil pan or oil pump oil leakage is mostly caused by loose oil plug or gasket damage. The consequence of the oil sump or oil sump leakage is that the diesel generator oil supply is reduced or interrupted. Since the diesel generator reduces the cooling effect of the oil, the heat of each friction pair of the diesel generator cannot be transmitted, so that the generator is overheated.
More information at this article: https://www.dieselgeneratortech.com/diesel-generators/How-to-Deal-with-Diesel-Generator-Overheating-Problem.html

There are many places that Oil can come from.

Most common is the Valve Cover but you need to spray the engine down and then look very closely to find some of them... Oil Pressure Sending Units, Intake, Water Jackets, The list goes on and on.

Ticking sound is normal from a health diesel engine is normal.

Diesel engine that does a lot of towing or carry large payload can use a head adjustment every 2 years or 24,000 miles.

I would keep tabs on the valve cover for oil leak.

Take it in the shop when the valve cover start to leak.

Do the valve adjustment,the valve cover and oil change at the same time.

Shell ROTELLA T Multigrade SAE 15W-40 is my prefer motor oil.

one of the valves is not closing properly presurizing the crank case and creating an oil mist get some one to check the valve clearances before you kill probably the single best (non turbo) diesel engine on the planet Good Luck

Diesels do lose a little oil out the blow-by tube. If the engine temp. is higher then normal then you will lose more then normal amounts. If you are not leaking it then you are burning it, Possibly worn rings, head-gasket, or oil leak inside turbo. 68 MPH and higher doesn't sound unusual, is the engine still stock?