After removing and replacing the timing chain I have zero compression?

Tiny
MY TWINS4ME
  • MEMBER
  • 2006 CHEVROLET COLORADO
  • 2.6L
  • 4 CYL
  • 2WD
  • MANUAL
  • 160,000 MILES
In all four cylinders.
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Friday, November 18th, 2022 AT 10:31 AM

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Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi,

If you have zero compression, either the timing is off allowing the valves to remain open when the pistons reach top dead center (TDC) or there is internal damage preventing the valves from closing. When you have no compression at all, the valves are usually the cause.

I have a question. Did the old chain break or jump time? I ask because this is an interference engine and that would have likely caused internal damage to the valves/pistons.

I attached a pic below showing the timing marks. Is that how you had them set?

Let me know.

Joe

See pic below.
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Friday, November 18th, 2022 AT 9:29 PM

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