Car not starting and low compression

2010 MINI COOPER
69,076 MILES • 1.6L • 4 CYL • AUTOMATIC
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JOMAR SANTOS
  • MEMBER
  • 1 POST
Prior owner's son over heated engine and burned a whole in number 2 piston ring head. Both center pistons were replaced, cylinder head was resurfaced and new gaskets were installed.. car cranks but won't start. Compression is low 50-60.
Feb 8, 2020 at 11:21 PM
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SCGRANTURISMO
  • ✓Experienced Mechanic
  • 4,897 POSTS
Hello,

If that is the compression on all cylinders then the engine has major internal damage and you should consider replacing it. In the diagrams down below I have included the specs for the engine from the vehicle manufacturer. Compression should be in between 8 bar [116 PSI] to 12 bar [174 PSI]. Please go through this guide and let us know what you decide to do. We can help with instructions for an engine swap or a complete engine rebuild.

Thanks,
Alex
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Feb 9, 2020 at 1:57 AM
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