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High compression

Tiny
LORENNBL
  • MEMBER
  • 2005 HYUNDAI ACCENT
  • 1.6L
  • 4 CYL
  • FWD
  • MANUAL
  • 150,000 MILES
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?
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Tuesday, September 6th, 2016 AT 12:14 PM

3 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Excessive compression means you have carbon build up on the tops of the pistons.
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Tuesday, September 6th, 2016 AT 12:29 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
Could also happen if it had a blown head gasket in the past that required shaving the head.
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Tuesday, September 6th, 2016 AT 12:40 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Yeah, if the head was ever resurfaced that is a good one.
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Tuesday, September 6th, 2016 AT 1:20 PM

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