Engine - Excessive Cranking, Poor Cold Driveability
83VW03Applies To RABBIT (Carburetor)
1982 M.Y.
Group
22
Subject:
Automatic Choke
Part Identifier 22 59
Key Points
Modifications to correct excessive cranking times and poor cold drivability C
Number
83-01
April 8, 1983
To correct excessive cranking time and cold driveability problems, the choke pull down vacuum source must be modified.
Parts required
Item Qty. Part No. Description
1 1 171 906 283 Vacuum solenoid
2 1 843 820 675 Check valve
3 2 113 201 943B Vacuum tee
4 1 N 020 353 5 Vacuum hose
280 mm long (11 in.)
5 1 N 020 353 5 Vacuum hose
130 mm long (5 in.)
6 1 N 020 353 5 Vacuum hose
120 mm long (4-3/4 in.)
7 1 N 020 353 5 Vacuum hose
70 mm long (3-3/4 in.)
8 1 N 020 353 5 Vacuum hose
60 mm long (2-3/8 in.)
9 2 N 020 353 5 Vacuum hose
40 mm long (1-9/16 in...)
10 1 - 14 ga. brown hookup wire
150 mm long (6 in.)
11 1 - 12 ga. red hookup wire
380 mm long (15 in.)
12 2 - Female spade connectors
13 1 - 6.5 mm "eye" connector
14 1 - 10-12 ga. scotch lock
connector
1 056 129 777 Vacuum cap
Modification procedure
- remove and discard vacuum delay valve and attaching hoses (arrow) from vacuum ports on carburetor base and choke pull down
- install vacuum cap on open port of carburetor base to make it inoperative
- assemble vacuum solenoid, check valve, and vacuum hoses into a sub-assembly as shown under "Parts required". Observe directional orientation of check valve (item 2). Arrow on check valve must point toward tee.
- remove upper mounting bolt of ignition coil (arrow 1), and install vacuum solenoid (item 1) and ground lug (item 13) under mounting bolt, and reinstall bolt
- connect vacuum hose (item 4) to port at choke pull-down diaphragm
- remove plastic vacuum line from cold start switch and insert tee (arrow 2) with connecting hoses (items 3 + 9)
- locate power lead to intake manifold (arrow 3). Splice the solenoid feed wire (item 11) to this power lead using scotchlock connector (item 14)
- inform-customer of revised cold-start procedure as follows:
Revised cold-start procedure
Starting a cold engine at temperatures of 10~F/-12~C or below:
- depress accelerator pedal fully and release
- start engine with clutch pedal depressed and accelerator pedal depressed slightly
- as soon as engine starts, release accelerator pedal and ignition key
- if engine fails to start and run, turn ignition off and repeat the full procedure
- let engine run at fast idle for approx. 30 seconds before driving off. (Do not attempt to reduce fast idle by tapping the accelerator pedal).
Starting a cold engine at temperatures above 10~F/-12C:
- depress accelerator pedal fully and release
- start engine with clutch pedal depressed
- as soon as engine starts, release ignition key
^ if engine fails to start and run, turn ignition off and repeat the full procedure
- let engine run at fast idle for approx. 30 seconds before driving off. (Do not attempt to reduce the fast idle by tapping the accelerator pedal).
Labor Operation: 22 59 31 0
Time Units: 25 T.U.