ENGINE TUNE-UP
ENGINE TUNE-UP BASIC MECHANICAL SYSTEM RETIGHTENING HEAD BOLTS
adjust valve clearances
@.
BD30 CYLINDER
1. Run engine until coolant temperature indicator points to the middle of gauge, then stop engine. 2. Remove valve rocker cover. 3. Tighten cylinder head bolts according to the order shown in the figure, starting with the center and moving toward the ends.
CD,
@,
CID and
3. Set No. 4 cylinder in top dead center on its compression stroke, and adjust valve clearances @, @, (j) and@. Valve clearance: Nissan BD30 Intake Valve CD, CID, @ and I ntake Clearance 0.35 mm (0.014 in) Nissan BD30 Exhaust @,@, @and Exhaust Valve Clearance 0.35 mm (0.014 in)
- 108 N.m (10 -11 kg-m,
(j)
Fan belt
Used
New
11 - 13 (0.43 - 0.51)
9 - 11 (0.35 - 0.43)
98 N (10 kg, 22 lb)
@
CiJ : Adjusting
CHECKING
ENGINE
COMPRESSION
(1.5 - 2.0 kg-m, 11 - 14 ft.lb)
72 - 80 ft-Ib)
Unit: mm (in)
Applied pushing force
screw lock nuts 15 - 20 N.m
CiJ : 98
Drive belt deflection:
PRESSURE
1. Warm up engine. 2. Remove glow plate or injection nozzle.
Tighten in numerical order. SEM641B
4.
Install valve rocker cover. SEM370E
RETIGHTENING
A
MANIFOLD
NUT
WARNING:
3. Fit compression gauge adapter to cylinder head. Make sure bleeder screw of gauge is closed.
Engine front
Q
Do not check the exhaust system until
CiJ : Compression gauge adapter
it has cooled off. Otherwise, you may burn yourself.
CiJ :
For glow plug hole
Intake manifold 13 - 19 N.m (1.3 - 1.9 kg-m, 9 - 14 ft-Ib) Exhaust manifold 25 - 29 N.m (2.5 - 3.0 kg-m, 18 - 22 ft-Ib)
SMA653C
For injection hole 54.64 N.m
4.
1.. Remove valve rocker cover. 2. Set No. 1 cylinder in top dead center on its compression stroke, and
(5.5 - 6.5 kg-m, 40 - 47 ft-Ib)
Install valve rocker cover.
CHECKING DRIVE
engine is hot. Adjusting Nissan BD30 Intake Valve Clearance and Nissan BD30 Clearance To adjust, Exhaust proceed Valve as follows:
15 - 20 N.m (1.5 - 2.0 kg-m, 11 - 14 ft.lb)
AND
ADJUSTING
BELTS
1. Visually damage.
inspect
for
cracks
or
The belts should not touch the bottom of the pulley groove.
2. Check drive belt deflection by pushing. The belts should deflect by the specified amount.
~
Method A:
Nissan Industrial Diesel Engine Parts Contact email: EngineParts@HeavyEquipmentRestorationParts.com Phone: 269 673 1638 Website: www.HeavyEquipmentRestorationParts.com