Parts for your 1986 Mitsubishi Pajero-Drive belt

1986 Mitsubishi Pajero drive-belt — what it does and how to look after it

Yes, a drive belt is absolutely used on the 1986 Mitsubishi Pajero. Technical references including the Mitsubishi Motors Workshop Manual for the first‑gen Pajero/Montero (L040 series), the Haynes Pajero/Montero/Shogun repair manual for 1983–1991 models, and Australian/NZ catalogues from Gates and Dayco all list accessory drive V‑belts for 1986 engines. Those sources detail belts for the alternator/water pump circuit, plus separate belts for power steering and the air‑con compressor where fitted—so a drive belt is very much part of the setup.

On these Pajeros, the drive belts transfer crankshaft power to the alternator (charging the battery), the water pump and mechanical fan on many engines (cooling), the power steering pump (lighter steering), and the A/C compressor (chilled air). Unlike modern single serpentine layouts, most 1986 configurations use multiple V‑belts: typically one for the alternator/water pump, one for power steering, and one for A/C, depending on engine and options.

As part of a routine service, it pays to inspect the belts every 10,000–15,000 kilometres or at each oil change. Look and listen under the bonnet with the engine off first, then briefly idling:

• Cracks, fraying, glazing or missing chunks on the ribs/edges
• Black dust around pulleys, belt squeal on start‑up, or slip under load
• Slack tension or uneven belt height if twin belts run a shared pulley

Replacement timing varies with use and climate, but given the age of these vehicles, any belt of unknown history should be replaced. For touring or off‑road work, many owners pre‑emptively renew accessory belts every 40,000–60,000 kilometres or 4 years. When fitting, loosen the adjuster and pivot bolts, set tension so there’s roughly 10–12 mm deflection at the belt’s longest span with moderate thumb pressure, then re‑tighten. Over‑tensioning can wipe out alternator or water‑pump bearings, too loose and it’ll squeal and slip. If a system uses twin belts, replace them as a matched pair so they share the load.

Keep pulleys aligned, free of oil, and don’t rely on belt dressings—they only mask problems. Quality belts from well‑known makers (as catalogued by Gates/Dayco for the 1986 Pajero range) are worth the few extra dollars. For remote trips in Aus or NZ, chuck a spare alternator/water‑pump belt in the kit—losing that one can mean losing cooling and charging in one hit.

Does a 1986 Pajero use a single serpentine belt or multiple V‑belts?

Most 1986 Pajeros run multiple V‑belts. Typically, one belt drives the alternator (often with the water pump/fan), with separate belts for power steering and the air‑con compressor. Exact layouts vary by engine and whether A/C or power steering is fitted.

What are the signs the drive belt needs replacing on a 1986 Pajero?

Common clues are squealing, visible cracking or glazing, frayed edges, or black rubber dust near pulleys. A slipping alternator belt can trigger the charge warning light, a failing water‑pump/fan belt may lead to rising temperature, heavy steering hints at a slack power‑steering belt.

What belt size does it take?

Sizes depend on engine code (e.g., petrol 2.6, diesel 2.3/2.5), and whether the vehicle has A/C and power steering. The quickest way is to check an Australian/New Zealand belt catalogue (Gates/Dayco) by engine and option, or read the part numbers printed on the existing belts.