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Tech Forum : setting timing

- BMW E21 Community
   - Tech Forum
      - setting timing
chad   Posted Sunday, Jun 29th 11:01am [Edit] [Quote] [IMS] [View car]
Member
Post nr. 22

saskatchewan, canada
79 320i, 82 320i
i just finished putting my head back on and it runs, the only problem is my timing is off and i don't have a timing light. any possible way of adjusting timing without a timing light, or is the light pretty essential?

thanks,

chad

Matt   Posted Sunday, Jun 29th 11:45am [Edit] [Quote] [IMS] [View car]
Member
Post nr. 84
   
SF Bay Area
81 320i
You really should use a light but here ya go......

http://www.picture-this-graphics.com/engine_timing.html

M42powered   Posted Sunday, Jun 29th 11:16pm [Edit] [Quote] [IMS] [View car]
Staff
Post nr. 93
   
Arizona, USA
1981 BMW 320i
some people can do it by ear. I could get close, but I'd always advance it a little too much. If your timing was correct before the head swap, I'd start the car and go look at your tachometer. If you remember your idle, you can set your timing by idle. Advancing the timing speeds up the idle and retarding it decreases the idle. Just make sure the engine is warm enough to where it will idle without all the extra fuel stuff.

Be warned... this isn't the BEST way to set timing.


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