Harbor Freight Tools xenon Advance Timing Light Manual descargar pdf (Pagina 6)

Page 6 For technical questions, please call 1-800-444-3353. Item 40963

Timing Adjustment

1. With the Engine stopped, loosen the

bolt that locks down the distributor,

but do not fully remove it.

It should be loose enough so that you

can rotate the distributor back and forth.

Do not over-loosen the bolt or allow

the distributor to move on its own.

2. Start the engine and run until it reaches

the standard operating temperature.

3. Direct the beam from the Timing Light

at the timing marks and slowly rotate

the distributor in very small increments.

Rotate the distributor either right or

left until the timing lines

1

are lined up

(in line with the pointer). See Figure 3.

4. Stop the engine.

5. Tighten the distributor lock down bolt

using care not to change the

position of the distributor.

6. Start the engine and recheck the timing.

If the timing is incorrect, the

distributor may have moved while

bolting it down. Reset the timing.

7. If you have no other tests to perform

with the Timing Light, turn off the

engine and reconnect the vacuum line.

If you have further tests, rst check

to see if the vacuum line needs to

be connected for those tests.

1

Many vehicles have two timing

marks: One at TDC and

another at 10° before TDC.

Testing Centrifugal Advance

1. With the timing light still connected

and the vacuum line still not attached,

speed the engine up slowly to the

manufacturer’s specied speed

for this test (often 2000 RPM)

and watch the timing mark.

2. The timing mark should move steadily,

without jumping. See Figure 3.

Figure 3

Pulley

Timing Marks

Pointer

Max. Advance

Rotation

Degree of Advance

3. If the mark stays stationary or moves

erratically, the Centrifugal Advance (or

other automatic timing advances) should

be repaired by a certied mechanic.

4. Turn the timing advance knob on the

back of the timing light up slowly until

the timing mark moves to TDC or 0.

5. The reading on the timing

advance scale indicates the

amount of centrifugal advance.

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