Adjustment Of Valve Timing

1. REMOVE NO.2 TIMING BELT COVER

(See steps 1 to 6 and 9 to 12 on pages EM-26 to 28)

2. REMOVE SPARK PLUGS (See page IG-7)

1985 Toyota Mr2 Spark Timing Setup
3.

More than one tooth

Less than one tooth

EM2470

More than one tooth

Less than one tooth

EM2470

CHECK CAMSHAFT TIMING PULLEY MARKS

(a) Turn the crankshaft pulley, and align its groove with timing mark "0" of the No.1 timing belt cover.

NOTICE: Always turn the crankshaft clockwise.

Check that the timing marks of the camshaft timing pulleys are aligned with the timing mark of the No.3 timing belt cover.

• If there is more than one timing pulley tooth between the timing marks, realign the timing marks in accordance with step 8.

• If the timing marks are aligned or the difference is less than one timing pulley tooth, proceed to step 9.

REMOVE EGR VACUUM MODULATOR AND VSV (See step 22 on page EM-66)

REMOVE THROTTLE BODY

(See steps 5 to 8 and 9 to 11 on pages FI-135 and 136)

REMOVE HOSE CLAMP AND VTV CLAMP OF AIR BY-PASS VALVE

(See steps 15 and 16 on page TC-9)

7. REMOVE CYLINDER HEAD COVER (See step 35 on page EM-70)

Timing Marks Toyota Echo 2003

8. ADJUST CAMSHAFT TIMING PULLEY TIMING MARKS

(a) Remove the two bolts and timing belt tensioner.

Timing Marks 2004 Toyota AvalonKerst Kleurplaten

(c) Rotate the camshaft with a wrench and align the alignment marks of the camshaft timing pulley and No.3 timimg belt cover.

Timing Belt Tensioner For Mk3 Toyota Mr2

(d) Reinstall the timing belt, insure that there is tension between the crankshaft timing pulley and intake camshaft timing pulley.

NOTICE: Install the timing belt when the engine is cold.

Sst 09249 63010 Camry

(e) Install the timing belt tensioner with the two bolts. (See steps 12 and 13 on pages EM-38 and 39)

Mk2 Turn Crankshaft

(f) Turn the crankshaft pulley two revolutions from TDC to TDC.

NOTICE: Always turn the crankshaft clockwise.

1991 Toyota Mr2 Engine Timing Belt

9. CHECK VALVE TIMING

(a) Using a wrench, turn and align the groove of the camshaft with the drilled mark of the No.1 camshaft bearing cap.

NOTICE: Always turn the crankshaft clockwise.

966 Parts Breakdown

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(b) Next make a note of the crankshaft pulley angle on the No.1 timing belt cover.

HINT: Perform this check separately for the intake and exhaust sides.

If the crankshaft pulley movement is within ± 2.4 mm (0.094 in.) of TDC, it is correct.

If it is greater than 2.4 mm (0.094 in.), go back to step 8.

10. ADJUST VALVE TIMING

(a) Hold the hexagonal wrench head portion of the camshaft with a wrench, and remove the two camshaft timing pulley bolts.

HINT (Intake camshaft timing pulley): Use SST.

SST 09249-63010

NOTICE: Do not make use of the timing belt tension when loosening the pulley bolts.

Sst 09249 63010

(b) Check that the camshaft grooves are aligned with the drilled mark of the No.1 camshaft bearing cap.

09249 63010 Toyota

(c) Using a magnetic finger, remove the knock pin from the pin hole of the camshaft timing pulley.

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Length

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Timing Marks 2004 Toyota Avalon

(d) Turn the crankshaft pulley, and align its groove with timing mark "0" of the No.1 timing belt cover.

NOTICE: Always turn the crankshaft clockwise.

(e) Select one overlapped hole of the camshaft and timing pulley, and insert the match pin into it.

HINT:

• If there is no overlapped hole, rotate the crankshaft a little and insert the pin into the nearly overlapped hole.

• By changing the pin hole to the next one, the crankshaft pulley angle can be adjusted by approx. 2°.

• By changing the pin hole to the next two, the crankshaft pulley angle can be adjusted by approx. 5°.

(f) Hold the hexagonal wrench head portion of the camshaft with a wrench, and install the pulley bolt.

HINT (Intake camshaft timing pulley):

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Responses

  • Laura
    How to adjust sw20 timing?
    8 years ago
  • PINJA RANTANEN
    How to replace timing belt 1985 toyota mr2?
    8 years ago

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