Suzuki SJ410 Major repair: Nissan A15 Engine General Overhaul

The problem started with bubble in the radiator and it seems that the pressure is coming from the engine pushing the water to reservoir. It looks like the A15 engine has head gasket blown due to symptoms:

1. Water leak below exhaust manifold

2. White smoke from exhaust 

3. Engine overheat

4. Too much bubbles in the radiator and then overflow to reservior

5. Milky white oil visible at engine cap

Thus, this time I have to rest the Suzuki SJ410 to do the general overhaul as the engine was old and I believe its time to do the job. 

Extreme wear on the piston, thus the engine block need to be re-bored