Timing belt check?

Tiny
PAGE0210
  • MEMBER
  • 2004 HONDA CIVIC
  • 1.7L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 186,000 MILES
I am trying to see if my timing belt skipped a tooth. I have the top cover off and can see the timing marks but I’m not sure how to check if it skipped. Any help would be great thanks.
Thursday, July 3rd, 2025 AT 12:15 PM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 52,185 POSTS
To check this, you must have the engine on Top Dead Center (TDC) on the compression stroke for the #1 cylinder. Here are the marks so you can check it out. If you are off on the crankshaft, you can turn it 360 degrees and the marks should line up. Let us know if you need anything else.
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Friday, July 4th, 2025 AT 5:14 PM
Tiny
PAGE0210
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  • 20 POSTS
Okay, so it is at the top of the compression stroke on cylinder 1 and it is about 4 teeth off. Just to make sure cylinder 1 is closest to the timing belt, correct?
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Saturday, July 5th, 2025 AT 3:22 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 52,185 POSTS
Yes, and yes, the #1 cylinder is closest to the front of the engine. Let me know if you need any more help.
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Saturday, July 5th, 2025 AT 12:21 PM

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