(MR479Q, MR479QA, MR481QA)
1. Check coolant
2. Check engine oil
3. Check battery
4. Check air cleaner element assembly
5. Check spark plug
6. Check drive belt
Water pump
Power steering
pump
crankshaft
Belt Looseness Measuring Point
Figure 1
Notice:
Check the belt deflection at the specified point See (Figure 1).
Set tension to specified value when installing new belt.
Check the deflection to ensure it is below the specified value after the belt runs for over 5 minutes.
Reinstall the belt which has been running for over 5 minutes. The deflection of the old belt is regarded as
the standard for inspection.
Check V-belt for tension and distortion after the engine cranks for 2
turns.
7. Check ignition timing See (Figure 2)
a) Warm up the engine.
b) When using fault diagnosis tester
Connect fault diagnosis tester to fault diagnosis interface socket.
Ignition timing:
MR479Q: 10 ± 2° BTDC (before top dead center) at idle
MR479QA: 10 ± 2° BTDC at idle
MR481QA: 10 ± 2° BTDC at idle
Part I Engine
Chapter 1 Engine Assembly
Section 1 Routine Inspection
generator
Air condition
compressor
Belt deflection See (Table 1)
Belt pressure: 98N
Fan Belt
Power steering Belt
A/C Belt
New Belt mm
Old Belt mm
~
7
9
11.5
~
5
6
~
6. 5
7
Figure 2
~
13.5
~
6
8
~
8
9
1