1 x compression spring to reduce oil pressure when using the OPEL Z20LEH oil pump on other engines
C20XE, C20LET,
X20XER, X20XEV,
Z20LEL, Z20LER, Z20LET
When using the "LEH oil pump" on non-Z20LEH engines,
the oil pressure is significantly too high. Even when retrofitting one
Piston base cooling is provided by the pump at up to 7 bar.
This value is significantly too high and usually leads to consequential damage such as:
- Oil entering the cooling circuit, especially with steel cylinder head gaskets
- Breaking of the oil pump wheels due to permanent overloading
- Inflating the hydraulic tappets - Valves do not close properly
- Oil leak from the turbocharger
