OT means zero degrees TDC
v.OT means before TDC
n.OT means after TDC

Was that the bit you wanted?

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1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!

Good work. How do you trigger the timing light - with a low voltage signal or with a high voltage? For the later, one could use a GM HEI module to drive a coil, and clamp over the HV spark lead as the timing light is normally used. A VR type crank sensor can trigger an HEI module. A round-about way, but with all off-the-shelf parts (have in my garage).

Reading between the lines of the M-B instructions, it appears their processing box times the delay between the TDC pulse and the RI pulse, and converts to crank angles. It seems you could just flash the timing light at the crank marks to verify it flashes at 15 deg ATDC. It appears that the RI pulse does not align with "start of delivery". Perhaps it marks TDC of the #1 IP piston.

I borrowed a Ford timing light setup for my 85 F-250 with International 6.9 L diesel with a Bosch injection system. It used some kind of inductive clamp on the fuel line to operate the light. Anyone tried it on a Benz?

Yeah, I have one made by Ferret but the clamp is too big for the line - the 606 has, I believe, 4.5mm lines and the clamp is designed for 6.25mm or some such. I put a collar around the line to try and make it work but the results are not encouraging.

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-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250

Bump

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 560SL convertible
1987 190D 2.5-5SPEED!!!

1987 300TD
2005 Dodge Sprinter 2500 158"WB
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

I don't know what it is - may be they were trying to figure something out.

__________________
1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!

you've got something really interesting going on when Roy is following your thread! Yeah, this one is most interesting!

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Dedicated to the preservation of antique Mercedes Benz's, one rusty ol' bucket of bolts at a time!