I have been trying to fallow all the problems and have gotten the impression that you are rushing yourself through these jobs. I know that when I rush myself I my thinking becomes reactionary instead of thoughtfull and and inhibits my ability to pay attention to details an sometime causes me to make the wrong decision.

When I drip timed my first Mercedes IP when I worked in a Fuel Injection Shop (my first mechanic job) my Boss checked it and it was not set exactly to spec. My Boss did not expect me to get it right the first time as I was still learning. I did not get it exactly right until the 3rd try. After that I had no problems doing the drip method which by the way at the time was used on most all of the inline type IPs except for CAT IPs which use a timing pin.
My point is that somethings we need to take our time doing things.

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84 300D, 82 Volvo 244Gl Diesel