Nissan 350Z Workshop Maunual 2005 (15) PDF | Page 14

EM-14
DRIVE BELTS
Revision: 2005 August 2005 350Z
DRIVE BELTS PFP:02117
Checking Drive Belts ABS009YC
WARNING:
Be sure to perform when engine is stopped.
1. Inspect belts for cracks, fraying, wear and oil. If necessary, replace.
2. Inspect drive belt deflection at a point on the belt midway
between pulleys.
? Inspection should be done only when engine is cold, or over
30 minutes after engine is stopped.
? Measure belt tension with tension gauge (BT3373-F or equiv-
alent) at points marked shown in the figure.
? When measuring deflection, apply 98 N (10 kg, 22 lb) at the
marked point.
? Adjust if belt deflection exceeds the limit or if belt tension is
not within specifications.
CAUTION:
? When checking belt deflection or tension immediately after installation, first adjust it to the speci-
fied value. Then, after turning crankshaft two turns or more, re-adjust to the specified value to
avoid variation in deflection between pulleys.
? Tighten idler pulley lock nut by hand and measure deflection or tension without looseness.
Belt deflection and tension
*: If belt tension gauge cannot be installed at check points shown, check drive belt tension at different location on belt.
Tension Adjustment ABS009YD
CAUTION:
? When belt is replaced with a new one, adjust it to value for ?New belt? to accommodate for insuffi-
cient adaptability with pulley grooves.
? When deflection or tension of belt being used exceeds ?Limit?, adjust it to value for ?After adjust-
ment?.
? When checking belt deflection or tension immediately after installation, first adjust it to the speci-
fied value. Then, after turning crankshaft two turns or more, re-adjust to the specified value to
avoid variation in deflection between pulleys.
? When installing belt, make sure that it is correctly engaged with pulley groove.
? Keep oil and water away from belt.
? Do not twist or bend belt excessively.
KBIA1731J
Deflection adjustment Unit: mm (in) Tension adjustment* Unit: N (kg, lb)
Used belt
New belt
Used belt
New belt
Limit After adjustment Limit After adjustment
Alternator and
power steering
oil pump belt
7 (0.28)
4 - 5
(0.16 - 0.20)
3.5 - 4.5
(0.138 - 0.177)
294 (30, 66)
730 - 818
(74.5 - 83.5,
164 - 184)
838 - 926
(85.5 - 94.5,
188 - 208)
A/C compressor
belt
12 (0.47)
9 - 10
(0.35 - 0.39)
8 - 9
(0.31 - 0.35)
196 (20, 44)
348 - 436
(35.5 - 44.5,
78 - 98)
470 - 559
(48 - 57,
106 - 126)
Applied pushing
force
98 N (10 kg, 22 lb) ?
Portion Belt tightening method for adjustment
Alternator and power steering oil pump belt Adjusting bolt on idler pulley
A/C compressor belt Adjusting bolt on idler pulley

Nissan 350Z Workshop Maunual 2005 (15) Summary of Content

EM-14DRIVE BELTSRevision: 2005 August 2005 350ZDRIVE BELTS PFP:02117Checking Drive Belts ABS009YCWARNING:Be sure to perform when engine is stopped.1. Inspect belts for cracks, fraying, wear and oil. If necessary, replace.2. Inspect drive belt deflection at a point on the belt midwaybetween pulleys. Inspection should be done only when engine is cold, or over30 minutes after engine is stopped. Measure belt tension with tension gauge (BT3373-F or equiv-alent) at points marked shown in the figure. When measuring deflection, apply 98 N (10 kg, 22 lb) at the marked point. Adjust if belt deflection exceeds the limit or if belt tension isnot within specifications.CAUTION: When checking belt deflection or tension immediately after installation, first adjust it to the speci-fied value. Then, after turning crankshaft two turns or more, re-adjust to the specified value toavoid variation in deflection between pulleys. Tighten idler pulley lock nut by hand and measure deflection or tension without looseness.Belt deflection and tension*: If belt tension gauge cannot be installed at check points shown, check drive belt tension at different location on belt.Tension Adjustment ABS009YDCAUTION: When belt is replaced with a new one, adjust it to value for New belt to accommodate for insuffi-cient adaptability with pulley grooves. When deflection or tension of belt being used exceeds Limit, adjust it to value for After adjust-ment. When checking belt deflection or tension immediately after installation, first adjust it to the speci-fied value. Then, after turning crankshaft two turns or more, re-adjust to the specified value toavoid variation in deflection between pulleys. When installing belt, make sure that it is correctly engaged with pulley groove. Keep oil and water away from belt. Do not twist or bend belt excessively.KBIA1731JDeflection adjustment Unit: mm (in) Tension adjustment* Unit: N (kg, lb)Used beltNew beltUsed beltNew beltLimit After adjustment Limit After adjustmentAlternator and power steering oil pump belt7 (0.28)4 - 5(0.16 - 0.20)3.5 - 4.5(0.138 - 0.177)294 (30, 66)730 - 818(74.5 - 83.5,164 - 184)838 - 926(85.5 - 94.5,188 - 208)A/C compressor belt12 (0.47)9 - 10(0.35 - 0.39)8 - 9(0.31 - 0.35)196 (20, 44)348 - 436(35.5 - 44.5,78 - 98)470 - 559(48 - 57,106 - 126)Applied pushing force98 N (10 kg, 22 lb) Portion Belt tightening method for adjustmentAlternator and power steering oil pump belt Adjusting bolt on idler pulleyA/C compressor belt Adjusting bolt on idler pulley