Renewing contact breakers (breaker points)

Closing angle (dwell angle) Testing and adjusting value at idle¹)

Change between idle and 3000/min

39-42

max. ± 3

*)When installing new breaker points, adjust closing angle (dwell angle) to 42 ± 1°.

Transistorized ignition system (T) (us

Identification: blue ignition coil, two pre-resistors and transistorized switchgear.

Closing angle (dwell angle) Testing and adjusting value at idle²)

Change between idle and 3000/min

34-40

max. ± 3

²) When installing new and when adjusting used breaker points, adjust dwell angle to 34 ± 1⁽

Digital tester

001 589 54 21 00

Connecting cable

000 589 04 90 00

Intermediate plug (adaptor)

000 589 72 63 00

Trigger

000 589 71 63 00

Closing angle (dwell angle) measuring instrument

07.5.2 lb-505/1

When renewing contacts, proceed as follows:

1 Wipe contacts prior to installation with a lintfree cloth to remove moisture or grease.

2    Coat slide piece of contact breaker, its bearing point and the cams of the distributor shaft with some Bosch special grease Ft 1 v 4.

3   When closed, contact breakers must be in parallel and at similar level in relation to each other.

Arrow: spot to be greased

4 Set closing angle (dwell angle) to specified value.

Mount protective breaker cap. Cap protects contact against grease, oil or dirt particles.

To make sure that during installation of breaker points the slide piece is greased and the protective cap is mounted, the breaker points are supplied with grease capsule and protective cap from now on.

1    Breaker point

2    Protective cap

3   Grease capsule

5 Check firing point and adjust (07.5—500).

07.5.2 lb-505/2