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Join Date: Jan 2017
Location: Canada's East Coast
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83 sc timing marks

I thought I understood this but not so sure now.

Of the two marks at TDC on the crank pulley I always thought the mark on the left is Z1 and the mark to the right is 5*BTDC. The pulley rotates cw right?
But when referring to the Bentley it appears the mark to the left is 5* BTDC and the mark to the right is TDC.
Have I been looking at this wrong all along? No doubt if I am wrong then the timing is not right but still the engine seems to be running fine.
Could you please enlighten me?
Hugh

Old 08-27-2019, 01:56 PM
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i have never seen a Bentley book..as you said the left is Z1 and the right 5...like this
Ivan
https://www.pelicanparts.com/techarticles/101_Projects_Porsche_911/23-Timing/23-Timing.htm
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1985 911 with original 501 761 miles...807 506 km
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Old 08-27-2019, 02:13 PM
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Thank you Ivan. So it is as I always believed. The reason I questioned is because on page 0310-12 on the Bentley manual there is a diagram showing the opposite. An error, obviously.
Thanks again.
Old 08-28-2019, 03:31 AM
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never mind I see the year is in the thread title.

Old 08-28-2019, 05:16 AM
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