High compression

2005 HYUNDAI ACCENT
150,000 MILES • 1.6L • 4 CYL • FWD • MANUAL
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LORENNBL
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  • 13 POSTS
Compression is high in all four cylinders 215 psi as should be 195, and starter is hard to turn over engine. Replaced starter, timing belt, clutch, pressure plate, flywheel, and power leads. fully charged good battery installed. What is making compression be high evenly and starter have trouble turning engine?
Sep 6, 2016 at 12:14 PM
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SATURNTECH9
  • ✓ASE Certified Mechanic
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Excessive compression means you have carbon build up on the tops of the pistons.
Sep 6, 2016 at 12:29 PM
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WRENCHTECH
  • ✓ASE Certified Mechanic
  • 20,761 POSTS
  • ASE Certified Mechanic
Could also happen if it had a blown head gasket in the past that required shaving the head.
Sep 6, 2016 at 12:40 PM
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SATURNTECH9
  • ✓ASE Certified Mechanic
  • 30,869 POSTS
  • ASE Certified Mechanic
Yeah, if the head was ever resurfaced that is a good one.
Sep 6, 2016 at 1:20 PM
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