Mitsubishi — Adjusting the V-belt tension (Alternator side)
Adjustments
From a Mitsubishi operator's manual — check it applies to your exact model before use.
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Before you start
- If damage or surface separation is found on the V-belt, replace the V-belt.
- Keep oil and grease away from the belt.
Procedure
- Remove the alternator front cover and belt cover.
- Loosen all retaining bolts on the alternator and adjusting rod.
- Loosen the upper and lower lock nuts on the adjusting rod; the lower nut has left-hand threads.
- Turn the adjusting rod to adjust the V-belt tension.
- After tension adjustment, tighten the upper and lower lock nuts.
- Tighten all retaining bolts on the alternator and adjusting rod.
- Reinstall the alternator front cover and belt cover.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Deflection 7 +/- 1 mm for a new belt and 9 +/- 1 mm for readjustment
- Force approx 98 to 147 N [10 to 15 kgf] at center between pulleys
Source: Mitsubishi operator's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.