Where do I find the lower timing mark

ZACK

MEMBER
1989 MAZDA 929
177,000 MILES

There is a grind mark on the crank so I used that but that's not it and I couldn't see any other marks on it. And I already took off the harmonic balancer

Tuesday, January 17th, 2012 AT 4:38 PM

3 Replies

RASMATAZ

MECHANIC
75,992 POSTS

Put the engine no.1 piston on its compression stroke/TDC-See below

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Tuesday, January 17th, 2012 AT 6:25 PM

RONTS

MEMBER
12 POSTS

Which one is # 1 PISTON AND where is compression stroke

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Monday, August 22nd, 2016 AT 3:16 PM

KEN L

MASTER CERTIFIED MECHANIC
48,363 POSTS

Number #1 is at the front of the engine the furthest forward If you sight across the engine. Pull the plug and with a flashlight look in the spark plug hole and slowly turn the engine over until the piston is at the top of its stroke. I would use a compression gauge to see when the cylinder is getting compression because the piston will come up twice and only one of the times is correct.

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Tuesday, August 23rd, 2016 AT 3:24 PM