Quote:
Originally Posted by bplust
Hi all,
I have a question regarding injection timing adjustment methods. In the Haynes manual, it instructs to use the drip method. I talked to one of my friends who is a 3rd generation diesel mechanic (not a weekend mechanic like myself) and he was very much against the drip method, citing that it can be very inaccurate compared to using a diesel timing light. I always cross reference anything I hear or read regarding Mercedes diesels with this forum, so I am interested to hear what peoples' input is about the drip test vs. using a timing light.
Thanks!
Bryan
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The '85, unlike the older engines, has a port on the side of the IP to allow the use of the OE factory tool commonly known as the "A-B lights". This simple device has a pair of lights that signal when a reference point inside the IP reaches the probes and closes the circuit between the two lights. At this point, the IP is at a known position. This position should be 15° AFTER TDC on the crankshaft.