Timming m20
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orcr51Timming m20
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orcr51Here are the distributor timing specs on the ignition distributors of M20 BMW
engines. I've found these numbers scattered over the web and have posted sources
below where possible. From my understanding all of these distributors are all PFUD6
models
PG = Gehause = pole housing diameter between 71mm & 83mm
F = Fliehkraftversteller (mechanical advance)
U = Unterdruckversteller (vacuum advance)
D = Drehzahlbegrenzer (speed limiter)
6 = #cylinders
M20-B23
Vehicle 323i E21
Built 1977-1983
Motor M20-B23
0237 302 006
Basic setting 22 at 1500 Rpms
Control 1 11-17 at 1000 RPMS
Control 2 22 at 1500 Rpms
Control 3 27-33 at 2400 Rpms
Control 4 26-32 at 4000 Rpms
Vehicle 323i E21
Built ?1982-1983?
Motor M20-B23
0 237 302 032
Basic setting
Control 1 Link one on the subject
Control 2 Link two on the subject
Control 3
Vehicle 323i/A
Built 1982-83
Motor M20-B23
0 237 302 038
Basic setting 19/3000
Control 1 10-18/1500
Control 2 13-20/2000
Control 3 16-22/2500
Vehicle 323i/A
Built 1982-83
Motor M20-B23
0 237 302 036
Basic setting 19/3000
Control 1 11-19/1500
Control 2 14-21/2000
Control 3 17-23/3000
Vehicle 323i/A
Built 1983-84
Motor M20-B23
0 237 302 040
Basic setting 16/5000
Control 1 9-16/1500
Control 2 12/19/2000
Control 3 15-21/3000
Vehicle 323i/A
Built 1983-84
Motor M20-B23
0 237 302 043
Basic setting 19/3000
Control 1 10-17/1500
Control 2 13-20/2000
Control 3 16-22/2500
Vehicle 323i/A
Built 1985-86
Motor M20-B23
0 237 304 025
Basic setting 16/5000
Control 1 3-10/1000
Control 2 12/19/2000
Control 3 15-21/3000
Vehicle 323i/A
Built 1985-86
Motor M20-B23
0 237 304 027
Basic setting 19/3000
Control 1 4-11/1000
Control 2 10-17/1500
Control 3 16-23/2500
M20-B20
Vehicle 320i/A E21
Built ?1977-1982?
Motor M20-B20
0237 302 007
Basic setting 22+1 at 1500 Rpms
Control 1 10-15 at 1000 RPMS
Control 2 22 at 1500 Rpms
Control 3 23-29 at 2000 Rpms
Control 4 26-32 at 2500 Rpms
Control 5 28-34 at 3000 Rpms
Control 6 31-37 at 3500 Rpms
Vehicle 320i/A
Built 1982-83
Motor M20-B20
0 237 302 037
Basic setting 26/3000
Control 1 14-23/1500
Control 2 21-27/2000
Control 3 22-29/3500
Vehicle 320i/A
Built 1982-83
Motor M20-B20
0 237 302 035
Basic setting 26/3000
Control 1 11-19/1500
Control 2 16-24/2000
Control 3 22-29/350
Vehicle 320i/A
Built 1983-84
Motor M20-B20
0 237 302 039
Basic setting 23/5000
Control 1 13-22/1500
Control 2 20-26/2000
Control 3 22-28/3000
Vehicle 320i/A
Built 1983-84
Motor M20-B20
0 237 302 042
Basic setting 26/3000
Control 1 14-23/1500
Control 2 21-27/2000
Control 3 23-29/3000
Vehicle 320i/A
Built 1984-85
Motor M20-B20
0 237 304 024
Basic setting 23/5000
Control 1 6-13/1000
Control 2 20-27/2000
Control 3 22-28/350
Vehicle 320i
Built 1984-88
Motor M20-B20
0 237 304 031
Basic setting 24/3000
Control 1 5-12/1000
Control 2 14-22/2000
Control 3 21-28/3000
Vehicle 320i
Built 1984-88
Motor M20-B20
0 237 304 026
Basic setting 24/3000
Control 1 5-10/1000
Control 2 19-26/2000
Control 3 21-28/3000
Vehicle 320i/A
Built 1986-90
Motor M20-B20
0 237 304 024
Basic setting 23/5000
Control 1 6-13/1000
Control 2 13-23/1500
Control 3 21-29/2500
Vehicle 320i/A
Built 1986-90
Motor M20-B20
0 237 304 024
Basic setting 23/5000
Control 1 6-13/1000
Control 2 13-23/1500
Control 3 21-29/2500
NOTES!!!!!
The 032 is cited by Marquis_Rex (e21 tricord -May 17th year unknwon) to be a late
model 323i e21 distributor. He says it's the same base timing of 22 Degrees at
1500 rpms matching the 006 distributor.
JDBeyer (March 19th Year unkown in response to marquis rex saying"I assume your car
is fitted with the standard Bosch ###032 distributor?"
He has a 032 with a max centrifugal advance of 24 rpms
"As far as the dist.# it is a "032" and it has a max. cent. advance of 24 degrees
and worn bushings that I need to address soon. "