This tutorial is also available in French
➔
Alternator change on Austin Mini
Vehicle ➔ Mini 1000 am1991 automatic transmission
Difficulty ➔ Easy
Time ➔ 1 hour
Summary
Advertisement
Recommendations
There are 3 lengths of accessory belt: 813, 825 and 838 mm. Be sure to check the length of the belt fitted to your Mini before ordering.
Required Tools
Sponsored links by
Spare Parts
Our Partners
Packaging :
•
All the parts above are sold individually.
Advertisement
Remove the alternator
Op 01
Remove the grille (➔ see the tutorial ''Removing the Grille'' Steps 01 to 04).
Op 02
Disconnect the alternator connector. Use a flathead screwdriver to release the clip and then pull firmly by hand.
Op 03
Loosen the 2 alternator mounting bolts on the engine slightly. Use the 1/2'' combination spanner and the 1/2'' socket.
Op 04
Loosen the adjusting rod fixing bolt and nut slightly. Use the 1/2'' combination spanner and the 9/16'' combination spanner.
The alternator is very heavy. Be careful when loosening the bolts because it will pivot downwards. Be careful not to get your fingers caught.
Op 05
Remove the fan belt.
In the photos below, the radiator had been removed. But this is not necessary to remove the belt. With the radiator in place, simply slide the belt between the fan and the radiator to remove it.
Op 06
Remove the nut and washer from the belt tensioner. Use the 9/16'' socket.
Op 07
Remove the 2 alternator mounting bolts on the engine. Use the 1/2'' combination spanner.
Remove the alternator.
The alternator is very heavy. Be sure to hold it firmly when you remove the last bolt.
Op 08
Recover the 2nd washer from the belt tensioner.
Advertisement
Reinstall the alternator
Op 09
Fit the alternator using the bolts, washers (GFK1125) and nuts (GFK3212).
Lightly screw in the 2 bolts. Use the 1/2'' combination spanner.
Op 10
Fit the adjusting rod on the engine block.
There are 2 washers on the alternator adjusting rod fixing bolt. One on each side of the rod.
Op 11
Screw in the alternator adjusting rod nut (GFK3323) without tightening it. Use the 9/16'' combination spanner.
Op 12
Fit the accessory belt (GCB10838).
Op 13
Rotate the alternator upwards to tension the belt. Pull firmly by hand. That should be enough.
While maintaining tension, firmly tighten the adjusting rod fixing nut (2nd photo). Use the 9/16'' socket.
Also tighten the adjusting rod fixing bolt (3rd photo). Use the 1/2'' combination spanner.
To tension the belt, you can also use a wooden lever. But be careful not to damage the alternator.
Op 14
Firmly tighten the 2 alternator mounting bolts on the engine. Use the 1/2'' combination spanner and the 1/2'' socket.
Op 15
Check the belt tension. Press firmly on the belt with your thumb halfway between the two pulleys. The belt should deflect by 13 mm.
The belt should not be too tight. This could damage the alternator bearings.
Another method for checking belt tension is to twist it with your fingers halfway between the two pulleys. The belt should be able to turn a quarter turn.
Op 16
Connect the connector and lock its fixing clip.
Op 17
Reinstall the grille (➔ see the tutorial ''Removing the Grille'' Steps 05 to 06).
The End
