Volkswagen Workshop Service and Repair Manuals

Engine code GY, HN, HM, JB, AJD

I =>page 28-37

II =>page 28-41

Note:

Components marked with ** feature M4 ignition cable connections 07.84 ▸.The two versions are not mutually interchangeable.

Safety precaution for TCI-H ignition system =>page 28-43

Adjustment data, spark plugs =>page 28-44

Distributor data =>page 28-46

Part I

• Suppression plug**
• ◆ 0.6...1.4 kohms
• Shielding ring
• ◆ For radio interference suppression
• Earthing strap
• Distributor cap**
• ◆ Watch for cracks and traces of leakage current
• ◆ Clean before fitting
• ◆ Before removal, loosen fastener of earthing strap of shielding ring
• Carbon brush with spring
• ◆ Check for wear, damage and freedom of moment
• Rotor arm
• ◆ Marking: R1
• ◆ 0.6...1.4 kohm
• ◆ 08.85 ▸engine code HN with speed governor, cutout speed:
  6150...6450 rpm

• Dust cap
• Circlip
• Pin
• Cover
• ◆ Removing and installing =>page 28-72
• Washer (s)
• ◆ No. of washer: Hall sender free of play and easy to turn
• Clamping bracket
• ◆ Must not be inwards with dust cap removed (danger of cover damage)
• Hall sender -G40-
• ◆ Checking: checking TCI-H ignition system =>page 28-67
• ◆ Thinly grease bearing surfaces

• Vacuum unit
• ◆ Checking vacuum advance: checking ignition timing =>page 28-56
• ◆ Leak test: checking ignition timing
  =>page 28-56
• 25 Nm
• Clamp
• Gasket or O-ring
• ◆ Renew gasket
• Distributor
• ◆ Installing=>page 28-52
• ◆ Checking and adjusting ignition point =>page 28-54
• ◆ Checking ignition timing =>page 28-56
• Base plate
• Connection piece
• Retainer

• Connector
• Spring washer
• Spark plug, 25 Nm
• ◆ Type electrode gap: adjustment data, spark plugs =>page 28-44
• Spark plug connector**
• ◆ Without shielding
  0.6...1.4 kohm
• ◆ With shielding
  4...6 kohm
• Ignition lead**
• ◆ Check for continuity

Part II

• DIS switch unit
• ◆ Engine code JB, HM, AJD only
• ◆ Checking =>page 28-71
• ◆ Pull of plugs and connect together before adjusting ignition point
• Bracket
• TCI-H switch unit
• ◆ Checking: checking TCI-H ignition system =>page 28-67
• Heat sink
• Plug contact at battery "negative" terminal
• In main wiring loom
• Suppression plug**
• ◆ 0.6...1.4 kohm
• Terminal 4 **
• Terminal 15 (+)

• Ignition coil
• ◆ Primary resistance:
  0.52...0.76 ohms
  (between term. 1 + 15)
• ◆ Secondary resistance:
  2.4...3.5 kohms
  (between term. 4 + 15)
• 8 Nm
• Clip
• Terminal 1 (-)