Nissan 350Z Workshop Maunual 2005 (15) PDF | Page 165

CYLINDER BLOCK
EM-165
C
D
E
F
G
H
I
J
K
L
M
A
EM
Revision: 2005 August 2005 350Z
CRANKSHAFT RUNOUT
? Place V-block on precise flat table, and support the journals on
the both end of crankshaft.
? Place dial indicator straight up on the No. 3 journal.
? While rotating crankshaft, read the movement of the pointer on
dial indicator. (Total indicator reading)
? If it exceeds the limit, replace crankshaft.
CONNECTING ROD BEARING OIL CLEARANCE
Method by Calculation
? Install connecting rod bearings to connecting rod and cap, and
tighten connecting rod bolts to the specified torque. Refer to
EM-145, "
ASSEMBLY" for the tightening procedure.
? Measure the inner diameter of connecting rod bearing with
inside micrometer.
(Bearing oil clearance) = (Connecting rod bearing inner diameter) ?
(Crankshaft pin journal diameter)
? If the calculated value exceeds the limit, select proper connecting rod bearing according to connecting rod
big end diameter and crankshaft pin journal diameter to obtain the specified bearing oil clearance. Refer
to EM-154, "
HOW TO SELECT CONNECTING ROD BEARING" .
Method of Using Plastigage
? Remove oil and dust on crankshaft pin journal and the surfaces of each bearing completely.
? Cut plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding oil
holes.
? Install connecting rod bearings to connecting rod and cap, and tighten connecting rod bolts to the speci-
fied torque. Refer to EM-145, "
ASSEMBLY" for the tightening procedure.
CAUTION:
Do not rotate crankshaft.
? Remove connecting rod bearing cap and bearing, and using
scale on plastigage bag, measure the plastigage width.
NOTE:
The procedure when the measured value exceeds the limit is
same as that described in the ?Method by Calculation?.
Standard : Less than 0.05 mm (0.0020 in)
Limit : 0.10 mm (0.0039 in)
SEM346D
Standard : 0.034 - 0.059 mm (0.0013 - 0.0023 in)
(actual clearance)
Limit : 0.070 mm (0.0028 in)
PBIC1642E
PBIC1149E

Summary of Content

CYLINDER BLOCKEM-165CDEFGHIJKLMAEMRevision: 2005 August 2005 350ZCRANKSHAFT RUNOUT Place V-block on precise flat table, and support the journals onthe both end of crankshaft. Place dial indicator straight up on the No. 3 journal. While rotating crankshaft, read the movement of the pointer ondial indicator. (Total indicator reading) If it exceeds the limit, replace crankshaft.CONNECTING ROD BEARING OIL CLEARANCEMethod by Calculation Install connecting rod bearings to connecting rod and cap, andtighten connecting rod bolts to the specified torque. Refer toEM-145, "ASSEMBLY" for the tightening procedure. Measure the inner diameter of connecting rod bearing withinside micrometer.(Bearing oil clearance) = (Connecting rod bearing inner diameter) (Crankshaft pin journal diameter) If the calculated value exceeds the limit, select proper connecting rod bearing according to connecting rodbig end diameter and crankshaft pin journal diameter to obtain the specified bearing oil clearance. Referto EM-154, "HOW TO SELECT CONNECTING ROD BEARING" .Method of Using Plastigage Remove oil and dust on crankshaft pin journal and the surfaces of each bearing completely. Cut plastigage slightly shorter than the bearing width, and place it in crankshaft axial direction, avoiding oilholes. Install connecting rod bearings to connecting rod and cap, and tighten connecting rod bolts to the speci-fied torque. Refer to EM-145, "ASSEMBLY" for the tightening procedure.CAUTION:Do not rotate crankshaft. Remove connecting rod bearing cap and bearing, and usingscale on plastigage bag, measure the plastigage width.NOTE:The procedure when the measured value exceeds the limit issame as that described in the Method by Calculation.Standard : Less than 0.05 mm (0.0020 in)Limit : 0.10 mm (0.0039 in)SEM346DStandard : 0.034 - 0.059 mm (0.0013 - 0.0023 in) (actual clearance)Limit : 0.070 mm (0.0028 in)PBIC1642EPBIC1149E