a few questions

[hk30]

i have a 1991 325i 6cyl, and would like to know the spark plug gap and how difficult is it to change front wheel bearings? thanks all and i have a tapping in my motor sounds like loose lifter or something

[witeshark]

About the tapping, you likely need a valve adjustment. Don't be bothered if there is still some tapping sounds after the adjustment (if you have the M20 6).

[marti5]

Some technical info:

ENGINE DATA

DISPLACEMENT
2494 cm3

# OF CYLINDERS
6

MAX POWER
173 bhp @ 5800 rpm (125kW)

MAX TORQUE
170 lb.ft @ 4300 rpm

COMPRESSION RATIO
8.8:1

FIRING ORDER
1 – 5 – 3 – 6 – 2 – 4

CO% @ 3000 rpm
1.0 + / - 0.5

VALVE CLEARENES
0.25 mm

OIL PRESSURE (idle)
0.5 > 2.0 bars

OIL PRESSURE (running)
> 4.0 bars

IDLE SPEED
760 + / - 40 rpm

SPARK PLUG GAP
0.8 mm

SPARK PLUG TYPE
BOSCH W8 LCR


CAPACITIES

FUEL TANK
64 litres

ENGINE OIL
4.3 litres

COOLING SYSTEM
10.5 litres

FINAL DRIVE
1.7 litres

MANUAL GEARBOX - GETRAG
1.0 > 1.5 litres

MANUAL GEARBOX - ZF
1.2 litres


PERFORMANCE

0 - 30 2.6
0 - 40 4.1
0 - 50 5.7
0 - 60 7.5
0 - 70 10.2
0 - 80 13.1
0 - 90 16.3
0-100 20.3
Standing 1/4 mile 16.1
Terminal Speed 87.5
Average Top Speed Banked Circuit 131.2 mph
ACELERATION IN 4th / 5th (seconds) IN 4th / 5th (seconds)
30 - 50 7.2 / 9.5
40 - 60 7.0 / 9.7
50 -70 6.7 / 10.2
60 - 80 5.4 / 9.9
70 - 90 7.3 / 10.8
80 -100 5.8 / 10.8
MAX SPEED IN GEAR @ 6,500RPM MAX SPEED
1st 33
2nd 55
3rd 81
4th 111
5th 131.2 @ 6,250rpm