Answer

Hello,


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Jump in anywhere here in my suggested “basics”, then check the EGR as suggested below.


I suggest you check things in this order.

1. Cam timing dead on - Does the TDC ball/mark on the flywheel (not the timing ball) line up perfectly with the cam mark?

2. Is the timing chain tensioner pumped up and tight on the timing chain? It should be if you have run it.

3. Are the valves adjusted properly?

4. Is the distributor in the correct position? Do this when you check the cam timing (step 1.). When the engine is in TDC the rotor should point to the notch on the edge of the distributor body (cap removed).

5. Correct firing order? #1 cylinder should be lined up with the notch in the distributor.

6. Set timing.

7. Set fuel mixture.


Try disconnecting the vacuum line going to the EGR valve and see if that makes a difference. Also check the manifold vacuum at idle, should be about 15", and then there should be a pronounced drop in vacuum if you apply vacuum to the EGR valve.


I hope I have answered your questions and addressed your concerns. Should you have further questions on this matter, please do not hesitate to ask. I want you to be 100% satisfied with my answer.


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Jake “The BMW Doctor”

Expert:	The BMW Doctor
Pos. Feedback:	100.0 %
Accepts:
Answered:	8/13/2009

BMW Technician

Over 30 years experience, 13 years with BMW, former BMW Shop Foreman, Service Manager