Measurement
- Remove the valve rocker arm cover. Refer to Valve Rocker Arm Cover Replacement.
- Rotate the crankshaft pulley clockwise, aligning the pulley groove with the 0 point on the cover.
- Check that the camshaft sprocket and timing chain are aligned.
- Measure the valve clearance at positions (1), (2), (6) and (8). Rotate the crankshaft pulley clockwise 360 degrees.
- Measure the valve clearance at positions (3), (4), (5) and (7).
- If the measured values are not within specifications, replace the valve tappets.
- Determine the tappet size. Refer to Determining Replacement Tappet Size.
- Replace the valve tappets if necessary. Refer to Valve Stem Oil Seal and Valve Spring Replacement.
Specifications
| • | Intake Side: 0.075-0.125 mm |
| • | Exhaust Side: 0.245-0.305 mm |
Determine Replacement Tappet Size
- Remove the old tappet.
- Measure the old tappet.
- Perform the following calculation to determine the replacement tappet size.
Intake: value of removed tappet + measured clearance - 0.1 mm = new tappet size
Exhaust: value of removed tappet + measured clearance - 0.27 mm = new tappet size
Example:
| • | Old tappet = 3.20 mm, clearance was 0.30 mm, Intake clearance value is 0.1 mm |
| • | 3.20 mm + 0.30 mm - 0.1 mm = 3.40 mm |
| • | 3.40 mm = 96449615 (part number) |
Part Number | ID Number | Value (mm) |
|---|---|---|
96449601 | 312 | 3.12±0.01 |
96449602 | 314 | 3.14±0.01 |
96449603 | 316 | 3.16±0.01 |
96449604 | 318 | 3.18±0.01 |
96449605 | 320 | 3.20±0.01 |
96449606 | 322 | 3.22±0.01 |
96449607 | 324 | 3.24±0.01 |
96449608 | 326 | 3.26±0.01 |
96449609 | 328 | 3.28±0.01 |
96449610 | 330 | 3.30±0.01 |
96449611 | 332 | 3.32±0.01 |
96449612 | 334 | 3.34±0.01 |
96449613 | 336 | 3.36±0.01 |
96449614 | 338 | 3.38±0.01 |
96449615 | 340 | 3.40±0.01 |
96449616 | 342 | 3.42±0.01 |
96449617 | 344 | 3.44±0.01 |
96449618 | 346 | 3.46±0.01 |
96449619 | 348 | 3.48±0.01 |
96449620 | 350 | 3.50±0.01 |
96449621 | 352 | 3.52±0.01 |
96449622 | 354 | 3.54±0.01 |
96449623 | 356 | 3.56±0.01 |
96449624 | 358 | 3.58±0.01 |
96449625 | 360 | 3.60±0.01 |
96449626 | 362 | 3.62±0.01 |
96449627 | 364 | 3.64±0.01 |
96449628 | 366 | 3.66±0.01 |
96449629 | 368 | 3.68±0.01 |
96449630 | 370 | 3.70±0.01 |
96449631 | 372 | 3.72±0.01 |
96449632 | 374 | 3.74±0.01 |
96449633 | 376 | 3.76±0.01 |
96449634 | 378 | 3.78±0.01 |
96449635 | 380 | 3.80±0.01 |
96449636 | 382 | 3.82±0.01 |
96449637 | 384 | 3.84±0.01 |
96449638 | 386 | 3.86±0.01 |
96449639 | 388 | 3.88±0.01 |
96449640 | 390 | 3.90±0.01 |
