1994 Pontiac Sunbird timing betls

1994 PONTIAC SUNBIRD
126,000 MILES • 4 CYL • 2WD • AUTOMATIC
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JAMES014
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  • 1 POST
How can I tell when the #1 piston is at top dead center or on the compression stroke?


What toe look for under the valve cover to see if the #1 piston is on its compression stroke?
Oct 13, 2008 at 2:34 AM
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MMPRINCE4000
  • ✓Experienced Mechanic
  • 8,548 POSTS
Remove the #1 spark plug, rotate engine (clockwise) with a ratchet on the balancer bolt while you have your finger over the #1 spark plug hole. When you feel air coming out you are approaching TDC #1. Continue to rotate slowly until the balancer mark is aligned with mark on block.

The intake cam lobe will rotate past the lifter on #1 cylinder.
Oct 26, 2008 at 1:57 AM
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