Distributor Signal Generator Available Separately (VOL. 10, ENG, NO. 022)

Publication date: 1990-05-11
Reference number: VOL. 10, ENG, NO. 022

DISTRIBUTOR SIGNAL GENERATOR AVAILABLE SEPARATELY

TECHNICAL SERVICE BULLETIN

Reference Number(s): VOL. 10, ENG, NO. 022, Date of Issue: May 11, 1990

22R-E, 2S-E, 4Y-E SIGNAL GENERATOR AVAILABLE AS SEPARATE PART

Model(s): 1984-90 Toyota Truck/4Runner (RN), Celica (RA/ST), Camry (SV), Van (YR)

Volume: 10

Reference: Engine

Bulletin No.: 022

Date: May 11, 1990

SERVICE INFORMATION

For improved serviceability, the signal generator is now available as a separate part. It is no longer necessary to replace the entire distributor assembly in the event of a signal generator failure. See Fig 1.

Fig 1: Distributor & Signal Generator Assembly

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

PART NUMBER INFORMATION

Engine	Previous P/N	New P/N	Part Name
22R-E	N/A	19250-35180	Signal Generator Assembly
2S-E	N/A	19250-74010	Signal Generator Assembly
4Y-E	N/A	19250-73010	Signal Generator Assembly
22R-E	19100-35180	<---- same	Distributor Assembly (includes Signal Generator)
2S-E	19040-74010	<---- same	Distributor Assembly (includes Signal Generator)
4Y-E	19040-73010	<---- same	Distributor Assembly (includes Signal Generator)

NOTE: The distributor assembly is unchanged. The part number is included for reference only.

INSTALLATION INSTRUCTIONS

The instructions below have been inserted in the box along with the signal generator to explain the replacement procedure.

NOTE: Replacement Procedure for Signal Generator Assembly

Disassemble the Integrated Ignition Assembly (IIA) from the housing.
Remove the two screws (painted white) and remove the signal generator assembly (see Fig 2).

Fig 2: Removing Signal Generator Assembly
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Install the new signal generator into the housing and temporarily tighten it using the new screws in the parts kit.
Set the tooth of the signal rotor at a right angle to the pickup coil projection of the signal generator, and insert a feeler gauge (0.25 mm, 0.010") between the tooth of the signal rotor and the pickup coil projection.
Tighten the two screws while lightly pushing the pickup coil toward the signal rotor (see Fig 3).

Fig 3: Pushing Pickup Coil Toward Signal Rotor
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Remove the feeler gauge.
Check the gap between the signal rotor and pickup coil projection with a non-ferrous feeler gauge (see Fig 4). Air Gap: 0.2-0.3 mm (0.008-0.012 inch)
Assemble the Integrated Ignition Assembly.

Fig 4: Checking Gap Between Signal Rotor and Pickup Coil