In all four cylinders.
Nov 18, 2022 at 10:31 AM
After removing and replacing the timing chain I have zero compression?
2006 CHEVROLET COLORADO
MY TWINS4ME
- MEMBER
- 1 POST
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JACOBANDNICKOLAS
- ✓ASE Certified Mechanic
- 110,194 POSTS
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.
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.
Image (Click to enlarge)
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Nov 18, 2022 at 9:29 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.