Other information:
Removal
BSM (Balance Shaft Module) Chain System
1.
Remove the timing chain.
(Refer to Timing System - "Timing Chain")
2.
Install a stopper pin (A) after compressing the balance shaft chain
tensioner.
...
Oil Specification
1.
The HFC-134a system requires synthetic (PAG) compressor oil whereas
the R-12 system requires mineral compressor oil. The two oils must never
be mixed.
2.
Compressor (PAG) oil varies according to compressor ...