Replacing the driven gear
1. Remove the driven gear.
a) Use a grinding stone to file down the projection of the driven gear connecting pin, being careful not to damage the drive shaft.
b) Use a punch and a hammer to knock out the connecting pin.
c) Remove the driven gear and thrust washer.
2. Remove the centrifugal governor drive shaft and thrust washer.
3. Install the new centrifugal governor drive shaft.
Apply a thin layer of grease to the drive shaft, place the thrust washer on it and insert the drive shaft into the distributor housing.
4. Install the new driven gear.
a) Place the flat washer and driven gear on the centrifugal ignition timing adjuster drive shaft.
b) Align the gear mark (not to be confused with the hole for the driven gear connecting pin) with a recess on the distributor body.
Caution: The limiter in the distributor for the contact ignition system must be positioned as shown in the figure.
[The original is published on the website: www.ToyotaMAN.ru]
c) Install and secure the new connecting pin.
d) Use a feeler gauge to measure the axial clearance of the centrifugal governor drive shaft (0.15-0.50 mm). If the gap differs from the specified one, adjust it with thrust washers.
Thickness of distributor thrust washers:
- for contact ignition system: 2.3 mm, 2.5 mm, 2.7 mm, 2.9 mm.
- for contactless ignition system: 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm.
d) Unrivet the connecting pin.