gearbox ACURA NSX 1997 Service Repair Manual

Component Locatio n
Index
NOTE :
• I f a n intac t airba g assembl y ha s bee n remove d fro m a scrappe d ca r o r ha s bee n foun d defectiv e o r damage d durin g
transit , storag e o r service , i t shoul d b e deploye d (se e sectio n 23 ).
• Befor e removin g th e gearbox , remov e th e ignitio n ke y t o loc k th e steerin g shaf t fro m turning .
• Afte r installin g th e gearbox , chec k th e whee l alignmen t an d adjus t i f necessary .
STEERING WHEEL/AIRBA G ASSEMBL Y
Removal , pag e 17-43
Disassembly/Reassembly , pag e 17- 44
Installation , pag e 17-45
STEERIN G COLUM N
Removal , pag e 17-47
Inspection , pag e 17-49
Installation , pag e 17-50
STEERIN G GEARBO XRemoval/Installation , pag e 17-1 9
Disassembly , pag e 17-2 2
Inspection , pag e 17-2 1Reassembly , pag e 17-2 5
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Manual Steerin g
Gearbo x Removal/Installatio n
NOTE: Befor e removin g th e steerin g gearbox , mak e
sur e th e fron t wheel s ar e straigh t ahead .
1 . Remov e th e steerin g join t cover .
CLIP CLAM P
2. Remov e th e steerin g join t bolts , an d disconnec t th e
steerin g join t b y movin g th e join t towar d th e
column .
3. Loc k th e steerin g shaf t wit h ignitio n ke y t o kee p
th e steerin g shaf t position .
4 . Rais e th e ca r an d plac e safet y stand s i n th e prope r
location s (se e sectio n 1 ).
5 . Remov e th e fron t wheels . 6
. Remov e th e cotte r pi n fro m th e caste l nu t an d
remov e th e nut .
7. Instal l th e 1 0 m m he x nu t o n th e bal l joint . B e sur e
that th e 1 0 m m he x nu t i s flus h wit h th e bal l join t
pin end , o r th e threade d sectio n o f th e bal l join t pi n
migh t b e damage d b y th e bal l join t remover .
NOTE: Remov e th e bal l join t usin g th e Bal l Join t
Remover , 2 8 m m ( 07MAC-SL00200 ). Refe r t o
pag e 18-2 1 fo r ho w to us e th e bal l join t remover .
8 . Separat e th e tie-ro d bal l join t an d knuckl e usin g th e
specia l tool .
CAUTION : Avoi d damagin g th e bal l join t boot .
NOTE : I f necessary , appl y penetratin g typ e lubrican t
t o loose n th e bal l joint .
BALL JOIN T REMOVER , 2 8 m m07MAC-SL0020 0
10 m m HE X NU T
9. Remov e th e foldin g spar e tir e an d spar e tir e holde r
plate .
10 . Disconnec t th e batter y negativ e terminal , the n
disconnec t th e positiv e termina l an d remov e th e
battery .
11. Remov e th e spar e tir e holde r an d floo r unde r cover .
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Gearbox Removal/Installatio n (Cont'd )
Manual Steerin g
12. Remov e th e flang e bolt s an d nut s fro m th e gearbo x
and fron t crossbeam . 14
. Instal l th e gearbo x i n th e revers e orde r o f removal .
CAUTION : Torqu e th e castl e nu t o f th e tie-ro d en d
t o th e lowe r torqu e specification , the n tighte n it on -
l y fa r enoug h to alig n th e slo t wit h th e pi n hole . D o
no t alig n th e nu t b y loosening .
NOTE : Whe n connectin g th e steerin g joint , mak e
sure tha t th e cabl e ree l o f SR S is centered .
1 5 . Se t th e steerin g rac k i n th e cente r o f it s strokes .
16 . Cente r th e cabl e ree l a s follows :
• Tur n th e steerin g whee l lef t approx . 15 0
degrees , t o chec k th e cabl e ree l positio n wit h
indicator .
• I f th e cabl e ree l i s centered , th e yello w gea r
toot h line s u p wit h th e alignmen t mar k o n th e
cover .
• Retur n th e steerin g whee l righ t approx . 15 0
degree s t o positio n th e steerin g whee l i n th e
straigh t ahea d position .
17 . Sli p th e lowe r o f th e steerin g join t ont o th e pinio n
shaf t (lin e u p th e bol t hol e wit h th e groov e aroun d
the shaft ) an d loosel y instal l th e lowe r bolt .
NOTE :
• B e sur e tha t th e lowe r steerin g join t bol t i s
securel y i n th e groov e i n th e steerin g gearbo x
pinion.
• I f th e steerin g whee l an d rac k ar e no t aligne d
centered , repositio n th e serration s a t lowe r sid e
of th e steerin g joint .
18 . Adjus t th e fron t to e afte r installin g th e gearbo x (se e
sectio n 18 ).
13
. Remov e th e steerin g gearbo x fro m th e fron t cross -
beam b y removin g th e flang e bolts .
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CAUTION:

• Before disassembling the gearbox, wash it off with solvent and a brush.

• Thoroughly clean all disassembled parts.

• Replace parts with damaged sliding surfaces.
Illustrated IndexProCarManuals.com

Overhaul
Manual Steerin g
1. Carefull y clam p th e gearbo x in a vis e wit h sof t jaws .
2 . Remov e th e boo t band . 4
. Befor e disassembly , instal l th e specia l too l o n th e pin -
io n shaf t an d chec k th e preload .
I f th e preloa d i s ou t o f th e specification , adjus t th e
rac k guid e (pag e 17-27 ).
I f th e preloa d i s stil l ou t o f th e specification , disas -
sembl e th e gearbo x an d chec k eac h part .
NOTE : Slid e th e steerin g rac k i n th e cylinde r unti l
th e en d o f th e rac k project s 6 0 m m (2. 4 in ) fro m
th e cylinde r end . Inspectio n i s mad e nea r thi s rac k
position .
5. Chec k th e pinio n preloa d wit h a sprin g scale .
Preload 7-17 N (0.7-1.7 kg, 1.5-3.8 Ibs)
STEERIN G INSPECTIO N AR M07974-SD9000 0
3. Pul l th e boot s awa y fro m th e end s o f th e gearbox ,
an d unben d th e tie-ro d loc k washers .
4. Hol d th e rac k wit h a wrench , an d unscre w th e tie -
rod s wit h anothe r wrench .
6. Loose n th e locknut , an d remov e th e rac k guid e
screw .
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Overhaul (Cont'd )
Manual Steerin g
• I f th e pinio n bearin g i s nois y o r ha s excessiv e
play , replac e th e bearin g usin g th e specia l tool s
an d a press .
NOTE : Hol d th e oute r rac e wit h th e too l securely .10
. Remov e th e steerin g rac k fro m th e cylinde r
housing.
NOTE: Th e steerin g rac k canno t b e remove d fro m
th e cylinde r side .
HUB DIS/ASSEMBL Y BAS E07GAF-SD4070 0
• Chec k th e lowe r bearin g an d replac e i t i f i t i s
damaged .
Remov e th e lowe r bearin g b y lightl y tappin g
with a plasti c hamme r a s shown . I f th e lowe r
bearin g i s har d t o remov e b y tapping , hea t th e
gearbo x b y soakin g i t i n 212° F (100°C ) water .
CAUTION : T o avoi d burns , us e heav y glove s whe n
handlin g th e heate d gearbox .
•
Pres s th e steerin g pinio n int o th e ne w pinio n
bearing .
NOTE :
• Instal l th e pinio n bearin g wit h th e wide r sid e of
th e inne r rac e towar d th e gear .
• Hol d th e inne r rac e wit h th e too l securely .
HUB DIS/ASSEMBL Y BAS E07GAF-SD4070 0
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P/S ADJUSTMENT GUIDE

07973-6920001

11. Insert the steering rack into the cylinder housing,

being careful not to damage the steering rack

sliding surface.
13. If the pinion dust seal was removed, drive in the

new dust seal until it bottoms on the step on the pi-

nion set screw.

14. Grease the sealing lip of the pinion dust seal.
• Press the new lower bearing into the gearbox

housing until it seats using a press and special

tool.

NOTE:

• Install the lower bearing with the wider side of

the outer race toward the bottom of the

gearbox.

• Hold the outer race with the tool securely.

• Do not allow dust and other foreign materials to

enter the lower bearing.
12. Install the steering pinion into the gearbox.

NOTE: Do not engage the steering pinion with the

steering rack this time.ProCarManuals.com

4-2
For the details of lubrication points and types of lubricants to be appl\
ied, refer to the illustrated index and various work
procedures (such as Assembly/Reassembly, Replacement, Overhaul, Install\
ation, etc.) contained in each section.
*1: Always use Honda Manual Transmission Fluid (MTF). Using motor oil can \
cause stiffer shifting because it does not contain theproper additives.
*2: Always use Honda ATF-Z1 (ATF). Using a non-Honda ATF can affect shift \
quality.
*3: Always use Honda Heavy Duty DOT3 Brake Fluid. Using a non-Honda brake fl\
uid can cause corrosion and decrease the life of the system.
Lubrication Points
No.LUBRICATION POINTSLUBRICANT
1Honda Motor Oil: P/N 08798-9015.
Look for the API Certification seal shown below. Make sure
it says “For Gasoline Engines.”
2TransmissionHonda MTF*1(P/N 08798-9016)
3Brake system (including anti-lock brake system)Honda Heavy Duty DOT3 Brake Fluid*3(P/N 08798-9008)4Clutch line
5Change lever pivots (M/T)Super High Temp Urea Grease (P/N 08798-9002)6Release fork (M/T)
8
9
10
11
12
13
14
15
16
17
18
19
20
21Steering boots
Steering ball joints
Select lever (A/T)
Pedal linkage
Intermediate shaft
Brake master power pushrod
Fuel fill door
Clutch master cylinder pushrod
Tilt lever
Parking brake cable end
Door hinges upper and lower
Door opening detents
Hood hinges and lock
Rear hatch latch
Multipurpose grease
24
22
23
Caliper piston boot, caliper pins, and boots
Shift cable end and select cable end (A/T)
Throttle cable ends
Honda Caliper Grease (P/N 08C30-B0234M)
Silicone grease
25Air conditioning compressorCompressor oil:
DENSO: ND-OIL8 (P/N 38897-PR7-A01AH or 38899-PR7-A01)
For Refrigerant: HFC-134a (R-134a)
Manual
Honda ATF-Z1 (ATF)*2(P/N 08200-9001)Automatic
7Steering gearboxSteering grease (P/N 08733-B070E)
Engine
API CERTIFICATION SEAL
Recommended engine oil
Engine oil viscosity for
ambient temperature ranges
*05-NSX (61SW004)SEC04(01-10) 9/22/04 1:49 PM Page 4-2
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4-5
Y
Do the items in parts A, B, C, D, E, F, and G as required for the mileag\
e/time interval listed.
NOTE: According to state and federal regulations, failure to do the maintenanc\
e items marked with an asterisk (*) will not
void the customer ’s emissions warranties. However, Acura recommends that all maintenance s\
ervices be done at
the recommended interval to ensure long-term reliability.
*1: Refer to the 1997 NSX Service Manual, P/N 61SL006.
*2: Refer to the 1998 NSX Service Manual Supplement, P/N 61SL007.
*3: Refer to the 2001 NSX Service Manual Supplement, P/N 61SW000.
A
B Replace engine oil (see page
8-2)*
2, every 7,500 miles (12,000 km) or 1 year.
Engine oil capacity: without oil filter: 4.3 L (4.5 US qt).
Check tire inflation and condition at least once a month, every 7,500 mi\
les (12,000 km).
Replace engine oil filter (see page 8-5)*1, every 15,000 miles (24,000 km) or 1 year.
Engine oil capacity: with oil filter: 5.0 L (5.3 US qt).
Check front and rear brake wear (see page 19-4)*1, every 15,000 miles (24,000 km) or 1 year.
• Check pads and discs for wear (thickness), damage, and cracks.
• Check calipers for damage, leaks, and tightness of mounting bolts.
Check parking brake adjustment (see page 19-5)*1, every 15,000 miles (24,000 km) or 1 year.
Check the number of clicks (10 to 14) when the parking brake lever is pulled with 196 N (20 kgf,\
44 lbf) of force.
Inspect tie-rod ends, steering gearbox, and gearbox boots (see page 17-57)*1, every 15,000 miles (24,000 km) or 1 year.
• Check rack grease and steering linkage.
• Check boots for damage and leaking grease.
• Check fluid lines for damage and leaks.1
• Check bolts for tightness.
• Check condition of ball joint boots for deterioration and damage.
Inspect driveshaft boots (see page 16-3)*1, every 15,000 miles (24,000 km) or 1 year.
Check boots for cracks and boot bands for tightness.
Inspect brake hoses and lines including ABS (see page 19-27)*1, every 15,000 miles (24,000 km) or 1 year.
Check the master cylinder, proportioning control valve and ABS modulator\
for damage and leakage.
Inspect all fluid levels and condition of fluids, every 15,000 miles (2\
4,000 km) or 1 year.
• Manual transmission fluid (MTF) (see page 13-3)*
1.
• Automatic transmission fluid (ATF-Z1) (see page 14-105)*1.
• Engine coolant (see page 10-2)*1.
• Brake fluid (see page 19-84)*1.
• Windshield washer fluid.
Cooling system hoses and connections (see page 10-2)*1, every 15,000 miles (24,000 km) or 1 year.
• Check all hoses for damage, leaks and deterioration.
• Check for proper fan operation.
Inspect exhaust system (see page 9-6)*, *1, every 15,000 miles (24,000 km) or 1 year.
Check catalytic converter heat shield, exhaust pipe, and muffler for dam\
age, leaks, and tightness ( see page 9-14 ).
Inspect fuel lines and connections (see page 11-130)*, *1, every 15,000 miles (24,000 km) or 1 year.
Check for loose connections, cracks, and deterioration; retighten loose \
connections and replace damaged parts.
Part Maintenance Items
*05-NSX (61SW004)SEC04(01-10) 9/22/04 1:49 PM Page 4-5
Inspect suspension components (see page 18-14)* , every 15,000 miles (24,000 km) or 1 year.
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Component Location s
Index
NOTE :
• I f a n intac t airba g assembl y ha s bee n remove d fro m a scrappe d vehicl e o r ha s bee n foun d defectiv e o r damage d durin g
transit , storag e o r service , i t shoul d b e deploye d (se e sectio n 24 ).
• Befor e removin g th e gearbox , remov e th e ignitio n ke y t o loc k th e steerin g shaft .
• Afte r installin g th e gearbox , chec k th e whee l alignmen t an d adjus t i f necessary .
STEERING GEARBO XRemoval/Installation , pag e 17-5 3
Illustrate d Index , pag e 17-5 7
Pinio n Preloa d Inspection , pag e 17-5 8
Rac k Guid e Scre w Adjustment , pag e 17-5 8
STEERIN
G COLUM N
Removal , pag e 17-4 7
Inspection , pag e 17-4 9
Installation , pag e 17-5 0
STEERIN G WHEEL /AIRBAG ASSEMBL YRemoval, pag e 17-4 3
Disassembly , pag e 17-4 4
Installation , pag e 17-4 5
EP
S CONTRO L UNI T
Replacement , pag e 17-62
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