BMW tech info

E36 tech

1992 M50B20 110kw non vanos (WBACB21080AL74672)
engine oil capacity 7ltr 5w30
thermostat 80C 11531710953
cam cover gasket set up to 09/1992 – 11120034106
spark plugs NGK BKR6EK / BKR6EQUP, BOSCH F7LDCR / FGR7DQP

front bearing tightening torque 290nm (214ft/lbs)
rear bearing/driveshaft/axle nut tightening torque 250nm (184ft/lbs), m3 300nm (221ft/lbs). driveshaft nut 30mm 12point

BMW cam specs

M50B25NV – intake 240, 9.7mm lift; exhaust 228, 9.0mm lift
M50B25TU – in 228, 9.0mm; exh 228, 9.0mm
M52B28TU – in 228, 9.0mm; exh 244, 9.0mm
M54B30 – in 240, 9.7mm, exh 244, 9.0mm
S50B30US – in 252, 10.2mm; exh 244, 9.5mm
S50B30 – in 260, 12mm; exh 260, 12mm

M50NV intake cam to VANOS engine exhaust side

Remove 2.2mm off the flange from the non-vanos intake cam.
The exhaust cam is 62 degrees different from original tool, total by 101 deg.

BMW M50 hot-cam dialing timing:

Intake opens: 19 BTDC (9.5 degrees on the cam)
Intake closes: 41 ABDC (20.5 degrees on the cam)

Duration 19+41+180 = 240 degrees
Lobe Center ((41-19)/2+90)= 101 degrees ATDC

Exhaust opens: 35 BBDC (17.5 degrees on the cam)
Exhaust closes:13 ATDC (6.5 degrees on the cam)

Duration 35+13+180 = 228 degrees
Lobe Center (35-13)/2+90= 101 degrees BTDC

Timing for nonvanos intakecams in exhaust side
Exhaust opens: 41 BBDC (20.5 degrees on the cam)
Exhaust closes: 19 ATDC (9.5 degrees on the cam)

Duration 41+19+180 =240 degrees
Lobe Center (41-19)/2+90= 101 degrees BTDC

BMW E36 differentials

E36 320i – type 168, final drive 3.45
E36/5 323ti compact – type 188 differential, final drive 3.07
E36 325i – type 188, final drive 3.15

E36/5 323ti type 188 differential – same as E30 type 188, E34 type 188 (speed sensor plate bigger in diameter, needs to be removed or cut to fit E36/5 rear cover)

Retrofitting E36/5 small case type 168 diff needs smaller diam type 168 halfshafts and prop shaft