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VW MKII A2 MK2 Golf Jetta Fox Service Manual - VAGLinks.com

VW MKII A2 MK2 Golf Jetta Fox Service Manual - VAGLinks.com

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4.3 Battery retaining clamp and bolt<br />

Refitting<br />

5 Refitting is a reversal of removal. Note the<br />

following:<br />

a) Ensure that the leads are fitted to their<br />

correct terminals<br />

b) Do not overtighten the lead clamp nuts or<br />

battery retaining clamp bolt<br />

c) Smear a little petroleum jelly on the<br />

terminals and clamps<br />

5 Alternator drivebelt -<br />

inspection and adjustment 2<br />

Refer to Chapter 1, Section 13<br />

7.2 Lead multi-plug and retaining clip<br />

(arrowed) - Bosch alternator<br />

8.3 Removing voltage regulator and brush<br />

assembly<br />

6 Alternator - testing<br />

5<br />

1 Accurate testing of the alternator is only<br />

possible using specialised instruments and is<br />

therefore best left to a qualified electrician.<br />

2 If the alternator is faulty, the condition of all<br />

brushes, soldered joints, etc., can be<br />

checked.<br />

3 If no fault is found, refit the alternator and<br />

have it checked professionally.<br />

7 Alternator - removal and<br />

refitting 3<br />

Starting and charging systems 5D•3<br />

Refitting<br />

6 Refitting is a reversal of removal. Before<br />

fully tightening the pivot and adjustment bolts,<br />

tension the drivebelt.<br />

8 Alternator - brush and voltage<br />

regulator renewal 3<br />

Bosch<br />

1 Disconnect the battery negative lead.<br />

2 Wipe clean the exterior surfaces of the<br />

alternator around the voltage regulator.<br />

3 Remove the two screws and withdraw the<br />

voltage regulator and brush assembly from<br />

the rear of the alternator (see illustration).<br />

4 Check that the length of the carbon<br />

brushes is not less than the minimum amount<br />

Removal<br />

specified (see illustration).<br />

1 Disconnect the battery negative lead. 5 If the brushes are serviceable, clean them<br />

2 Release the clip and pull the multi-plug with a solvent-moistened cloth.<br />

from the rear of the alternator (see 6 Check that brush spring pressure is equal<br />

illustration).<br />

for both brushes and holds the brushes<br />

3 Loosen the pivot and adjustment bolts (see securely against the slip rings. If in doubt<br />

illustration) then push the alternator in about the condition of the brushes and<br />

towards the engine and slip the drivebelt from springs, <strong>com</strong>pare them with new items.<br />

the alternator.<br />

7 If the brushes are over worn, unsolder the<br />

4 Remove the adjustment link nut and brush leads and remove the brushes. Clean<br />

washer.<br />

the housing, insert the new brushes and<br />

5 Support the alternator then remove the solder the new leads into position.<br />

pivot bolt and withdraw the unit from the 8 Clean the slip rings with a solvent-<br />

engine.<br />

moistened cloth, then check for signs of<br />

scoring, burning or severe pitting. If worn or<br />

damaged, the slip rings should be attended to<br />

by an auto-electrician.<br />

9 Reassembly is a reversal of the dismantling<br />

procedure.<br />

Motorola<br />

10 This procedure is similar to that described<br />

for the Bosch alternator. Identify the regulator 5D<br />

wires for position before disconnecting them<br />

(see illustration).<br />

7.3 Alternator pivot bolt and bracket –<br />

1.3 litre<br />

8.4 Checking alternator brush length 8.10 Voltage regulator/brush unit removal<br />

1081 <strong>VW</strong> <strong>Golf</strong> & <strong>Jetta</strong>

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