How to adjust timing on a 1986 320i

[solanog]

Hi I have a 1986 320i (2000cc, 6 in line) I think those were not available in USA but I think are very similar to the 325i.
How should I time it? Idle speed? With the vacum hose on or off? Any other things or special procedure I should follow?
Thanks and regards.

[Aether]

What would make you think that they're similar to the 325i?

[solanog]

I've seen both and to me they are externally (engines) very similar, I think they even share some parts.
This one I have is not from U.S.A and may be different.
But the problem I have is that eventhough the timing seems right it sounds (knock pin??) as if timing was ahead. It makes this noise specially below 2000-2500 r.p.m. Idle speed is around 800 r.p.m.
Any help will be appreciated.

[will1506]

You can try to adjust the throttle. But BMW's got a computer that controls all of that. I remember that on my old car even when I try adjusting the idle still tries to default it back to the normal speed.

['85 318i]

i can adjust the timing on my car just fine... the computer doesnt messs with anything I do to my car... sorry can't help with your question. Maybe... Mine Idles at about 950 RPM. I have my timing advanced a bit... But mines a 318i 4 cyl. prolly no hel pat all... meh

[OreoGaborio]

Originally posted by Aether@Apr 5 2004, 05:44 PM
What would make you think that they're similar to the 325i?

um.... because it's an m20b20

['85 318i]

@ oreo

[OreoGaborio]

thank you, thank you.... i'll be here all week