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- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Point Contact Breaker.
Restore reliable ignition switching and consistent engine operation with this Porsche Point Contact Breaker. Designed for compatible classic Porsche ignition systems, the contact breaker—commonly known as ignition points, contact points or breaker points—is a key mechanical component within the distributor.
Fits:
Diagram Ref No 23
In a traditional points-based ignition system, the distributor cam repeatedly opens and closes the contact breaker as the engine rotates. This switching controls current through the ignition coil. When the points open, the magnetic field in the coil collapses, generating the high voltage required to produce a spark at the spark plugs.
Because the contact surfaces open and close thousands of times during normal engine operation, they gradually wear. Electrical arcing can cause pitting or burning of the contacts, while mechanical wear can alter the points gap and ignition dwell angle.
Correctly adjusted, serviceable contact points are essential for reliable starting, smooth running and accurate ignition performance. Replacing worn points with the correct Porsche Point Contact Breaker 61660222603 helps restore dependable ignition switching and provides a sound basis for correct distributor adjustment.
What This Product Does:
- Mechanically switches the ignition coil primary circuit.
- Opens and closes as the distributor cam rotates.
- Controls the timing of ignition coil charging and discharge.
- Allows the ignition coil to generate the high voltage required for the spark plugs.
- Helps maintain the correct ignition dwell when properly adjusted.
- Supports reliable engine starting.
- Helps maintain smooth idle and consistent engine operation.
- Supports correct ignition performance throughout the engine speed range.
- Works together with the distributor, ignition coil and condenser.
- Provides a serviceable component for traditional mechanical ignition systems.
- Replaces worn, burned, pitted or incorrectly operating contact points.
- Helps maintain the original-style ignition system on compatible classic Porsche models.
Symptoms Of Wear Or Failure:
- Difficult starting.
- Engine cranking but failing to start.
- Intermittent starting problems.
- Rough or unstable idle.
- Engine misfires.
- Hesitation during acceleration.
- Poor throttle response.
- Loss of engine power.
- Engine cutting out intermittently.
- Poor running at higher engine speeds.
- Inconsistent ignition timing.
- Excessive electrical arcing at the points.
- Burned or blackened contact surfaces.
- Pitting or material transfer between the contacts.
- Incorrect or continually changing points gap.
- Excessive wear of the rubbing block.
- Weak or inconsistent ignition spark.
- Increased fuel consumption caused by poor ignition performance.
Why Replacement Matters:
- The contact breaker is central to the operation of a conventional mechanical ignition system. If the points cannot switch the ignition coil correctly, spark quality and ignition timing can deteriorate.
- As the contact surfaces become burned or pitted, electrical resistance can increase and switching can become less consistent. This may reduce the effectiveness of the ignition system and contribute to misfires or difficult starting.
- Mechanical wear is equally important. The rubbing block follows the distributor cam and determines when the contacts open. As this surface wears, the points gap and dwell angle can change.
- An incorrect points gap can alter ignition performance and timing. Too little or too much dwell can affect how effectively the ignition coil charges between firing events.
- Replacing worn points with a correct Porsche Point Contact Breaker 61660222603 helps restore precise mechanical switching, reliable spark generation and consistent engine performance.
Related reference numbers
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61660222603
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