4000,S L4-1781cc 1.8L SOHC (MG) (1985)
Drive Belt: Technical Service Bulletins
V Belt - Adjusting Tension With New Bracket Assembly
Applies To
4000S
Group
4 AND 5 CYLINDER
1985/1986
27
Subject
Key Points
Number
Alternator V-Belt Tension
Adjusting V-belt tension on engines equipped
85-27-02
with new bracket assembly
Part Identifier N/A
A-204
September 12, 1985
V-Belt Tension Adjustment
Alternator V-belt tension can now be adjusted by using a torque wrench and crowfoot in combination with the toothed rack (A), and tensioning
gear (B), which has gradually been installed on 1.8L 4 cyl. and 2.2L 5 cyl. engines manufactured since April of 1985.
To adjust V-belt tension
-
loosen bolts B, C, and pivot bolt in cradle (not shown)
Note
The securing bolts should be loose enough for the alternator to swing freely under its own weight.
-
tension the V-belt by rotating the tensioning gear hex, using a torque wrench and crowfoot until the specified torque is obtained
-
tighten tensioning gear center bolt (B) while maintaining tension spec with torque wrench
-
tighten bolt (C) securing alternator bracket to attachment eye
-
tighten alternator pivot bolt securing alternator to cradle
Torque Specifications
^
tensioning gear hex 9 +/- 1 N-m (6-7 ft.lbs)
^
bolt B 35 N-m (26 ft.lbs)
^
bolt C 20 N-m (15 ft.lbs)
^
pivot bolt 26 N-m (19 ft.lbs)
Note
Belt tension accuracy can be checked by using a belt tension gauge after performing the adjustment.