How to know if the camshaft is on the compression stroke?

Tiny
EUGENE BEROS
  • MEMBER
  • 1999 FORD RANGER
  • 165,000 MILES
Replacing a timing belt. How do I know if I'm on the compression stroke on the camshaft?
Thursday, September 11th, 2025 AT 1:57 PM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,610 POSTS
If the timing mark on the camshaft gear is on the mark you are on the compression stroke, check out the red arrow. Check out the images (below). Let us know if you need anything else.
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Friday, September 12th, 2025 AT 9:35 AM
Tiny
EUGENE BEROS
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Lined up the timing marks and the engine doesn't start. What should I check now?
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Friday, September 12th, 2025 AT 5:17 PM
Tiny
KEN L
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I would check for compression, this video will help:

https://www.youtube.com/watch?v=J3j85hg0d-4

Please go over this guide and get back to us.
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Sunday, September 14th, 2025 AT 10:16 AM

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