Timing marks again

Old June 19th, 2018, 08:43 AM
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Timing marks again

Just to be sure, on a new build, with the timing marks aligned, crank at 12 and cam at 6, rotor needs to be on number 1. Thanks for your patience.
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Old June 19th, 2018, 09:13 AM
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Originally Posted by 67Rocket View Post
Just to be sure, on a new build, with the timing marks aligned, crank at 12 and cam at 6, rotor needs to be on number 1. Thanks for your patience.
I believe thatís for number 6. But donít sweat it. Once itís together just bump it over with the number 1 plug out and your finger in it. When it pushes your finger out itís at tdc compression.
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Old June 19th, 2018, 02:14 PM
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Originally Posted by cutlassefi View Post


I believe thatís for number 6. But donít sweat it. Once itís together just bump it over with the number 1 plug out and your finger in it. When it pushes your finger out itís at tdc compression.

Mark is correct. Chevy motors are on the compression stroke in no. 1 with the marks at 6-12. For Olds motors compression on no. 1 happens when the marks are at 12-12. As Mark points out, I don't understand why people worry so much about this. Put it together, check for compression in no. 1, and drop in the distributor. We spend more time talking about it than it takes to just do it.
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Old June 19th, 2018, 05:47 PM
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After decades of working on Chevys, please excuse my confusion. So I am rotating to 12 and 12 and installing the rotor to number 1 cylinder. Thanks to everyone.
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Old June 19th, 2018, 06:12 PM
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I believe the installation is same for Chevy as it is for Olds, You install the chain with the crank at at 12 and cam gear at 6. That puts the distributor pointing to #6. Rotate the crank one full turn and the crank is again at 12 and the cam is at 12. That puts the distributor at #1. The firing order for Olds is the same as Chevy.
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Old June 20th, 2018, 07:04 AM
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Thanks again
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Old June 20th, 2018, 08:03 AM
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Originally Posted by oldcutlass View Post
The firing order for Olds is the same as Chevy.
But isn't the cap wired counterclockwise for Olds?
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Old June 20th, 2018, 05:16 PM
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Originally Posted by edzolz View Post
But isn't the cap wired counterclockwise for Olds?

Yes, but that doesn't change the firing order. It is still 1-8-4-3-6-5-7-2 for both.
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