S-Class (W126) 1979-1991: 300 SE, 300 SEL, 380 SE, 380 SEL, 420 SEL, 500 SEL, 560 SEL, 360 SEC, 500 SEC, 580 SEC, 300 SD TURBODIESEL, 300 SDL TURBO, 350 SD TURBO, 350 SDL TURBO

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Old Oct 1, 2018 | 07:40 PM
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mikethebike49's Avatar
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From: Paradise
1991 560 sec 1977 XLCH 2004 K1200GT 1012 Chevy Volt
ignition

I had to pull the distributor to replace the 'o' ring and R/R the water pump....anyone know what the initial timing setting is? I noticed a pin about 4mm in diameter and 4-6 mm high right at what looks to be 25 BTDC.
TDC is marked in red
My question is, when I install the distributor, do I use the TDC mark or something else as my point of reference for aligning the rotor with number 1 cylinder.
Also, do we use a timing light on these engines?

Thanks

Mike
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