1998 OPEL FRONTERA Workshop Manual

Page 5353 of 6000

OPEL FRONTERA 1998  Workshop Manual 6A – 80 ENGINE MECHANICAL
PISTON AND CONNECTING ROD
5
8
7
3
1
2 6
4
012RW061
Legend
(1) Cylinder Head Assembly
(2) Crank Case
(3) Connecting Rod Bearing Cap(4) Connecting Rod
(5) Piston Ring
(6) Pis

Page 5354 of 6000

OPEL FRONTERA 1998  Workshop Manual ENGINE MECHANICAL 6A – 81
DISASSEMBLY
1. Cylinder Head Assembly
1) Refer to “Cylinder head” in this manual.
2. Crank Case Assembly
1) Refer to “Crank Case” in this manual.
3. Connecting Rod

Page 5355 of 6000

OPEL FRONTERA 1998  Workshop Manual 6A – 82 ENGINE MECHANICAL
Legend
(1) Piston Grade
(2) Piston Front Mark
(3) Part Number
The  grade  for  piston  outside  diameter  is  stamped
on the piston head.
Measure  the  cylinder  bore  diam

Page 5356 of 6000

OPEL FRONTERA 1998  Workshop Manual ENGINE MECHANICAL 6A – 83
Discerning Mark
Piston Ring Discerning Mark
1st compression ring 1N
2nd compression ring 2N
Ring End Gap mm(in)
Piston Ring Standard Gap Limit
1st 0.25 – 0.40
compression

Page 5357 of 6000

OPEL FRONTERA 1998  Workshop Manual 6A – 84 ENGINE MECHANICAL
2. Measure  the  inside  diameter  of  the  connecting  rod
small  end.  If  the  clearance  between  the  small  end
and pin does not conform to the specified value, the
c

Page 5358 of 6000

OPEL FRONTERA 1998  Workshop Manual ENGINE MECHANICAL 6A – 85
3. Measure  the  oil  clearance  between  the  connecting
rod and the crankshaft.
1) Remove  the  connecting  rod  cap  nuts  and  the
rod caps.
Arrange  the  removed  rod

Page 5359 of 6000

OPEL FRONTERA 1998  Workshop Manual 6A – 86 ENGINE MECHANICAL
5. Piston Ring
1) Install  the  piston  rings  with  the  piston  ring
expander.
The  compression  ring  must  be  set  with  the  1N,
2N mark facing up.
2) Discerning  mar

Page 5360 of 6000

OPEL FRONTERA 1998  Workshop Manual ENGINE MECHANICAL 6A – 87
Legend
(1) 1st compressor ring gap
(2) 2nd compressor ring gap
(3) Oil ring gap
3) Insert the piston/connecting rod assemblies into
each cylinder with the piston ring compr