I bought a 12 used car, which model is Volkswagen Golf MK4 1.8L Naturally Aspirated.

After an accident, I have to repair my car.

The car is built on the same platform as the Audi TT MK1 named PQ34.

As a result, I’ve used a variety of processes to modify my car, including but not limited to add a new turbocharger……

Teardown

Engine

This is the cylinder head. The hydraulic valve tappet has been damaged and the connecting surface is scratched.

Crankshaft, Camshaft, pitsons, rod, freewheel, these have been taken down.

The floating bearing has been severely damaged.

Gearbox

The transmission was likewise removed and disassembled

Interiors

For the interiors, the carpets, dashboard, seats, and central tunnel were all removed.

Glass Lifter Removal and Speaker Replacement

Twelve-handed objects always have some electrical problems

Rebuilding

New Life……

Engine

Rebuilding……

Polishing…

Valve grinding.

ECU Program

I rebuilt the whole ECU hardware and software. The main MCU replaced by Infineon Aurix TC264 with higher frequency, which completely improves the sensor refresh rate and provides a high-speed interface for logging.

Installing

A long way to go……

Engine

Everything is new, new cylinder barrels, new bearings, new gaskets.

Cylinder roundness measurement in progress

Install new valve seals, valve hydraulic tappets, valve springs

Install forged crankshaft.

Oil pump, oil suction nozzle installed, oil pan installed

New gas valve base.

Forged pitsons and rods.

Intake & Turbocharger

Cylinded head has been installed.

Assembling

Engine wires, which include sensors, ignitations and fuel injector.

Installing engine.

Finished

Channel1 is the Crankshaft Signal.

Channel2 is the Camshaft Signal.

Engine is working well.

Finally, my car had fully accomplished its rebirth way.

PS: Most of the process here took place in my garage, the lift for the installation process came from a friend’s garage, thanks again to Mr. Wei Ting (魏挺) of Yinchuan Junwei（君威） Auto Repair Cente for the venue support.