Maintenance and management of oil burning in Volkswagen Audi EA837~ 3.0T engine
RachelFinn 
11 
Maintenance and management of Volkswagen Audi EA837 3.0T 5,000 kilometers burning five-liter oil
Decompose serious engine oil leakage
Engine accessories have been removed and the interior of the engine has been disassembled
The used car purchased by the owner was not well maintained before, resulting in black sludge
There’s a lot of sludge. It’s a thick layer.
The original car does not have a one-way check valve, which will cause pressure relief in the oil passage to cool down and the car will sound when it starts.
Chain tensioner relieves pressure and cools the car and makes a clatter sound when it starts
Camshaft cover removed complete
The camshaft is removed without wear
The cylinder head has been removed, except for the replacement of the valve oil seal, there is no abnormality
The cylinder head has been removed, and the piston has been severely deposited. Check the clearance of the piston inside the cylinder.
Large clearance between cylinder and piston
Severe oil pan sludge
It’s all oily sludge and carbon
Sludge is surrounding the oil pump
Engine casing sludge
The crankshaft is fine
There is no problem with the crankshaft bearings
Carbon deposits on the piston are stuck
A thick layer of carbon deposits fills the oil ring
The piston ring elasticity is not enough and worn
Replacement of cylinder liners (original car cylinders are made of aluminum) Cylinder blocks have been cleaned
Replace the cylinder liner with a new one
Is the middle section of the cylinder body clean after cleaning?
The cylinder head after valve oil seal replacement and improvement has been cleaned completely
Cleaning of cam bearing cover
Clean the left and right cylinder heads
Crankshaft cleaned
Start assembling crankshaft
Crankshaft large tile cover
Clean oil pump
Clean the camshaft so that the original factory logo can be clearly seen
new piston
Connecting rod cleaning completed
New and old pistons
Comparison of old and new original piston on the left
Comparison of old and new piston on the right side
New piston installed
The next stage of cleaning and assembly is completed
oil pump is mounted
Clean the oil pan
The lower section is assembled and ready to install the cylinder head
left cylinder
The piston clearance is perfect
The lower timing chain has been cleaned and installed, and the timing rear housing is ready to be installed.
Rear shell cleaning and installation
The left and right cylinder heads are installed
Two one-way check valves are installed on engines without one-way check valves in the original vehicle
Prepare to install the camshaft shoe cover after cleaning
Camshaft shoe cover installed complete
Clean the camshaft adjusting wheel and install the camshaft timing
Engine boss assembly completed
Supercharging installation
Install the engine after cleaning each component
Cleaning and supercharging after loading
The clean engine is on the bus and ready to start the engine
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