In the winter season, I encountered failure of the engine startup due to ignition loss of the 123 distributor several times. Also I wish to confirm the current condition of the radiator coolant where it has been more than 5 years since the coolant renewal last time. On a beautiful sunny day after returning home from the night shift, I vigorously conducted small maintenance jobs.

1. Cleanup of Distributor

A small amount of Metal powders is identified,

but the deterioration is not observed.
The metal faces are thoroughly cleaned by the parts cleaner .

Let’s see awhile I trust in confidence that the electric ICs remain working fine.

2. Coolant Renewal

Please note that I conducted basically in line with the procedure referred by the SL113 club.

• Remove the support of the lower radiator hose.

• Fully open the heater.
  Remove the cap of the reservoir tank.
  Disconnect the upper hose connected to the radiator.
  Commenced to flush by disconnecting the lower radiator hose instead of the drain plug.

• Contamination of the coolant
  It appears almost nothing to note.

• Run Tap water through the cooling system from the reservoir tank until coming free of contamination.

• Connected the lower radiator hose and fill the system with the Tap water.
  Run the engine for 10 minutes while monitoring the coolant temperature.
  Flush the water through the lower radiator hose again.
  Connected the lower radiator hose.
• Start to fill the newly prepared coolant into the reservoir tank until the certain level of the tank and run the engine.
  9 liters is filled while the total system requires 10.7 liters nominally. A 25% of dilution is adopted for my case.

Be in mind that the coolant temperature should stay at the certain level. The temperature tends to continuously rise in the case of some air remains in the system.

• What coolant I would try for the next maintenance?

That’s all.

On the move.