Land Rover Defender 90 110 Workshop 1984 Rover Manual

V8 CYLINDER ENGINE 1121 
-- Reclaiming cylinder head threads 
Damaged or stripped threads in the cylinder  head can 
be  salvaged  by fitting  Helicoils 
as follows: 
I~Ioles A -These threc holes may be drilled  0.3906 in. 
dia. x 0.937 + 0.040 in. deep. Tapped with Helicoil  Tap 
No. 6 CPB or 6CS x 0.875 in. (min.)  deep (g UNC 1%D 
insert). 
Holes B - These eight holes  may be drilled  0.3906 in. 
dia. x 0.812 + 0.040 in. deep.  Tapped  with Helicoil  Tap 
No. 6 CBB  0.749  in. (min.)  deep (a UNC 1MD...

El V8 CYLINDER ENGINE 
REMOVE AND OVERHAUL FLYWHEEL 6. Place a chisel  immediately  above the drilled 
hole  and strike 
it sharply  to split  the starter  ring 
gear. 1. Remove  the retaining  bolts and withdraw  the 
flywheel  from the crankshaft. 
2. Examine  the flywheel  clutch face for cracks,  scores 
and  overheating. 
If the overall  thickness of the 
flywheel 
is in excess of the  minimum  thickness i.e. 
39,93 mm (1.572 in) it can be refaced  provided  that 
after  machining 
it will not be...

V8 CYLINDER ENGINE 
REMOVE TIMING GEAR COVER AND WATER 
PUMP 
1. Place an oil  drip-tray  beneath  the timing  cover and 
2. Remove  the crankshaft  pulley bolt and special 
3. Remove  the two bolts securing  the sump  to the 
remove 
the oil filter 
element. 
washer and  withdraw the pulley. 
bottom 
of the  timing  cover. 
ST805M 1 
Renewing timing  cover oil seal 
S. Remove the seven  drive screws  and withdraw  the 
mud  shield  and the oil seal. 
6. Position the gear  cover  with the front  face...

12 
Dismantle pump  Assemble pump 0 ,,-,-.. ..__ . ...

V8 CYLINDER ENGINE 112 
/, ,d.%:h. 2. Withdraw the chaln wheels complete  with timing 
6.  Measure the camshaft journals for overall  wear, 
ovality  and  taper. The diameters  of the  five 
journals  are as follows  commencing 
from the front 
of  the  shaft. 
c. 3 chain. 
3. Withdraw thc camshaft  whilst taking particular 
carc not to daniagc thc bearings in the cylinder 
block. 
 
_. ... , .... ., . : “I. . 
Examine components 
4. Visually  examine  all parts for wear.  Check the 
camshaft  bearing...

V8 CYLINDER ENGINE 
5. Push the connecting-rod  and  piston  assembly  up 
the  cylinder  bore and withdraw 
it from  the top. 
Retain  the connecting
-rod  and  piston  assemblies in 
sequence  with their  respective  caps. 
6. Remove  the guide  bolts 605351 from the 
connecting
-rod. 
Overhaul 
NOTE: The  connecting-rods,  caps and bearing  shells 
must  be retained  in sets,  and in the  correct  sequence. 
Remove  the piston  rings over the crown 
of the piston. If 
the  same  piston is to be...

V8 CYLINDER ENGINE 
. 8. As an alternative  to tool 18G 1150, press the 
gudgeon  pin from  the piston  using an hydraulic 
press  and the components  which comprise  tool 
605350 as follows: 
a.  Place  the base 
of tool 605350 on the bed of an 
hydraulic  press which  has 
a capacity of 8 tons (8 
tonnes). 
b. Fit the guide  tube into the bore of the  base  with 
its  countersunk  face uppermost. 
c.  Push  the piston  to one  side 
so as to expose one 
end  of the  gudgeon  pin and  locate  this end...

lz[ V8 CYLINDER ENGINE 
13. Check  the  compression ring gaps in the  applicable 
cylinder, 
held square to thc bore  with the piston. 
Gap  limits: 
0,44 to 0,56 mm (0.017  to  0.022  in). 
Use a fine-cut  flat  file to increase  the gap if 
required.  Select a new  piston  ring if the gap 
exceeds the  limit. 
NOTE: Gapping does not apply to oil control  rings.  Fit 
piston  rings 
17. Fit the expander  ring into  the bottom  groove 
making  sure that 
the ends  butt and do not  overlap. 
18. Fit two...

V8 CYLINDER ENGINE 112 
Check crankshaft  bearings 
22. Locate the bearing upper shell into the connecting- 
rod. 
23.  Locate 
the connecting-rod  and  bearing on to the 
applicable  crankshaft  journal,  noting  that 
the 
domed shape boss on the connecting-rod must  face 
towards  the front  of the  engine  on  the  right
-hand 
bank  of cylinders  and towards  the  rear  on the 
left
-hand  bank. 
24. When  both  connecting-rods are fitted,  the  bosses 
will face inwards towards  each other. 
25....

V8 CYLINDER ENGINE 
c 
37 
D 
A 
38. If tool 18G 1150 was  used for dismantling,  refit 
each  piston 
to its connecting-rod  as follows: 
a. Clamp  the hexagon  body  of 18G 1150 in a vice, 
with  the adaptor  18G 1150 E positioned as in 4d. 
b. Remove the  large nut of 18G 1150 and push  the 
centre  screw approximately 
50 mm (2 in) into 
the  body  until the shoulder 
is exposed. 
c.  Slide 
the parallel  guide sleeve, grooved  end last, 
onto the centre  screw and up  to the shoulder. 
I 1 
39. 
d....