Timing Mark Way Off?
Thread Starter
Burning Brakes
Joined: Jan 2006
Posts: 1,223
Likes: 174
From: Fort Wayne IN
I was thinking about the same for my Z28 RS, when I set it at 18 degrees, the vacuum is only 12, and the engine is not happy.
When I set it at 28,the vacuum is 16, and the engine sounds happy.
I assume it the same problem I have, or that the chain set has different settings, and it was installed "not to zero"
When I set it at 28,the vacuum is 16, and the engine sounds happy.
I assume it the same problem I have, or that the chain set has different settings, and it was installed "not to zero"
Old Pro Solo Guy
Joined: Dec 2017
Posts: 8,031
Likes: 4,385
From: Marlton NJ
I was thinking about the same for my Z28 RS, when I set it at 18 degrees, the vacuum is only 12, and the engine is not happy.
When I set it at 28,the vacuum is 16, and the engine sounds happy.
I assume it the same problem I have, or that the chain set has different settings, and it was installed "not to zero"
When I set it at 28,the vacuum is 16, and the engine sounds happy.
I assume it the same problem I have, or that the chain set has different settings, and it was installed "not to zero"
Safety Car
Joined: Jan 2008
Posts: 3,794
Likes: 430
From: Aarhus, Denmark
Your chain may be off a tooth, or it may not be zeroed. Some timing sprockets have a square, circle, and a triangle on them which sets you up for different "built in" levels of timing advance / retard. Your cam may also be ground with a certain level of advance built in when it is at the zero mark.
