Infiniti F50. Manual - part 553

SERVICE DATA AND SPECIFICATIONS (SDS)

EM-99

C

D

E

F

G

H

I

J

K

L

M

A

EM

Valve Clearance

Unit: mm (in)

*: Approximately 20

°

C (68 

°

F)

Available Shims

Items

Cold* (reference data)

Hot

Intake

0.26 - 0.34 (0.010 - 0.013)

0.32 - 0.40 (0.013 - 0.016)

Exhaust

0.29 - 0.37 (0.011 - 0.015)

0.33 - 0.41 (0.013 - 0.016)

Thickness

mm (in)

Identification mark

2.32 (0.0913)

232

2.33 (0.0917)

233

2.34 (0.0921)

234

2.35 (0.0925)

235

2.36 (0.0929)

236

2.37 (0.0933)

237

2.38 (0.0937)

238

2.39 (0.0941)

239

2.40 (0.0945)

240

2.41 (0.0949)

241

2.42 (0.0953)

242

2.43 (0.0957)

243

2.44 (0.0961)

244

2.45 (0.0965)

245

2.46 (0.0969)

246

2.47 (0.0972)

247

2.48 (0.0976)

248

2.49 (0.0980)

249

2.50 (0.0984)

250

2.51 (0.0988)

251

2.52 (0.0992)

252

2.53 (0.0996)

253

2.54 (0.1000)

254

2.55 (0.1004)

255

2.56 (0.1008)

256

2.57 (0.1012)

257

2.58 (0.1016)

258

2.59 (0.1020)

259

2.60 (0.1024)

260

2.61 (0.1028)

261

2.62 (0.1031)

262

2.63 (0.1035)

263

2.64 (0.1039)

264

2.65 (0.1043)

265

2.66 (0.1047)

266

2.67 (0.1051)

267

2.68 (0.1055)

268

EM-100

SERVICE DATA AND SPECIFICATIONS (SDS)

Valve Spring

Valve Lifter

Unit: mm (in)

2.69 (0.1059)

269

2.70 (0.1063)

270

2.71 (0.1067)

271

2.72 (0.1071)

272

2.73 (0.1075)

273

2.74 (0.1079)

274

2.75 (0.1083)

275

2.76 (0.1087)

276

2.77 (0.1091)

277

2.78 (0.1094)

278

2.79 (0.1098)

279

2.80 (0.1102)

280

2.81 (0.1106)

281

2.82 (0.1110)

282

2.83 (0.1114)

283

2.84 (0.1118)

284

2.85 (0.1122)

285

2.86 (0.1126)

286

2.87 (0.1130)

287

2.88 (0.1134)

288

2.89 (0.1138)

289

2.90 (0.1142)

290

2.91 (0.1146)

291

2.92 (0.1150)

292

2.93 (0.1154)

293

2.94 (0.1157)

294

2.95 (0.1161)

295

Thickness

mm (in)

Identification mark

SEM966E

Free height 

mm (in)

46.35 - 46.85 (1.8247 - 1.8444)

Pressure 

N (kg, lb) at height mm (in)

Installation

165 - 189 (16.8 - 19.3, 37 - 42) at 33.8 (1.331)

Valve open

290 - 330 (29.6 - 33.7, 65 - 74) at 24.4 (0.961)

Out-of-square 

mm (in)

Limit

2.0 (0.079)

Items

Standard

Valve lifter outer diameter

33.965 - 33.975 (1.3372 - 1.3776)

Lifter guide inner diameter

34.000 - 34.016 (1.3386 - 1.3392)

Clearance between lifter and lifter guide

0.025 - 0.051 (0.0010 - 0.0020)

SERVICE DATA AND SPECIFICATIONS (SDS)

EM-101

C

D

E

F

G

H

I

J

K

L

M

A

EM

Valve Guide

Unit: mm (in)

Valve Seat

Unit: mm (in)

Items

Standard

Service

Valve guide

Outer diameter

10.023 - 10.034 (0.3946 - 0.3950)

10.223 - 10.234 (0.4025 - 0.4029)

Inner diameter (Finished size)

6.000 - 6.018 (0.2362 - 0.2369)

Cylinder head valve guide hole diameter

9.975 - 9.996 (0.3927 - 0.3935)

10.175 - 10.196 (0.4006 - 0.4014)

Interference fit of valve guide

0.027 - 0.059 (0.0011 - 0.0023)

Standard

Stem to guide clearance

Intake

0.020 - 0.046 (0.0008 - 0.0018)

Exhaust

0.030 - 0.056 (0.0012 - 0.0022)

Projection length “L”

Intake

10.1 - 10.3 (0.398 - 0.406)

Exhaust

10.0 - 10.4 (0.394 - 0.409)

PBIC0184E

Items

Standard

Service

Cylinder head seat recess diameter (D)

Intake

37.000 - 37.016 (1.4567 - 1.4573)

37.500 - 37.516 (1.4764 - 1.4770)

Exhaust

32.200 - 32.216 (1.2677 - 1.2683)

32.700 - 32.716 (1.2874 - 1.2880)

Valve seat interference fit

Intake

0.081 - 0.113 (0.0032 - 0.0044)

Exhaust

0.064 - 0.096 (0.0025 - 0.0038)

Valve seat outer diameter (d)

Intake

37.097 - 37.113 (1.4605 - 1.4611)

37.597 - 37.613 (1.4802 - 1.4808)

Exhaust

32.280 - 32.296 (1.2709 - 1.2715)

32.780 - 32.796 (1.2905 - 1.2912)

SBIA0380E

EM-102

SERVICE DATA AND SPECIFICATIONS (SDS)

CAMSHAFT AND CAMSHAFT BEARING

Unit: mm (in)

*: Total indicator reading

CYLINDER BLOCK

Unit: mm (in)

Items

Standard

Camshaft runout [TIR*]

Less than 0.02 (0.0008)

Cam height “A”

Intake

44.865 - 45.055 (1.7663 - 1.7738)

Exhaust

43.925 - 44.115 (1.7293 - 1.7368)

Outer diameter of camshaft journal

No.1

25.938 - 25.955 (1.0212 - 1.0218)

No.2, 3, 4, 5

25.953 - 25.970 (1.0218 - 1.0224)

Inner diameter of camshaft bracket

26.000 - 26.021 (1.0236 - 1.0244)

Camshaft journal clearance

No.1

0.045 - 0.083 (0.0018 - 0.0033)

No.2, 3, 4, 5

0.030 - 0.068 (0.0012 - 0.0027)

Camshaft end play

0.115 - 0.188 (0.0045 - 0.0074)

Camshaft sprocket runout [TIR*]

Less than 0.15 (0.0059)

SEM671

Surface flatness

Limit

0.1 (0.004)

Cylinder bore

Inner diameter

Standard

Grade No. 1

93.000 - 93.010 (3.6614 - 3.6618)

Grade No. 2

93.010 - 93.020 (3.6618 - 3.6622)

Grade No. 3

93.020 - 93.030 (3.6622 - 3.6626)

Wear limit

0.20 (0.008)

Out-of-round (Difference between X and Y)

Less than 0.015 (0.0006)

Taper (Difference between A and C)

Less than 0.010 (0.0004)

PBIC0123E