Parts for your 1996 Mitsubishi Pajero-Manifold gasket

1996 Mitsubishi Pajero manifold gasket — what it does, why it matters, and when to replace it

Based on Mitsubishi’s factory Workshop Manual for the V2/V4 (1991–1999) Pajero/Montero range, the Mitsubishi ASA Electronic Parts Catalogue for V24/V26/V46 chassis codes, and major gasket catalogues used in Australia and New Zealand (e.g., Permaseal, Mahle, Victor Reinz), a manifold gasket is absolutely fitted to the 1996 Mitsubishi Pajero. Both the intake manifold and the exhaust manifold use gaskets across the common engines of the time — the petrol 6G72/6G74 V6s and the 4M40 turbo‑diesel — so a 1996‑Mitsubishi‑Pajero manifold-gasket is relevant to every variant.

This gasket’s core job is simple but critical: it seals the joint between the manifold and the cylinder head. On the intake side it prevents unmetered air leaks that cause rough idle, lean running and higher fuel use. On the exhaust side it keeps hot gases in the manifold, protecting nearby components, maintaining turbo response on the 4M40, and avoiding that annoying ticking leak on cold start. Many Pajero intake setups also route coolant through the manifold/plenum, so the right gasket and correct torque sequence keep both vacuum and coolant where they belong.

Because the manifold gasket just sits quietly doing its thing, there’s no set replacement interval — it’s typically serviced when there are symptoms or when the manifold is off for other work (rocker cover gaskets, injector service, lifter work, EGR cleaning). Best practice on a 1996‑Mitsubishi‑Pajero manifold-gasket replacement is to use quality OEM or equivalent gaskets, clean both mating faces thoroughly, check the manifold for warpage, and follow the Workshop Manual torque sequence and specs. New manifold studs and prevailing‑torque nuts on the exhaust side are cheap insurance, especially on high‑kilometre 4M40s that can suffer seized or fatigued studs. Avoid smearing RTV unless the manual explicitly calls for it at specific joints.

• Common signs it’s time: hissing (intake), ticking under load or at cold start (exhaust), black soot marks at the flange, sulphur/exhaust smell in the cabin, lean‑mixture fault codes or high positive fuel trims on petrol V6s, slow turbo spool on the 4M40.
• Smart add‑ons while you’re there: throttle body and plenum gaskets on V6s, turbo inlet/outlet gaskets on 4M40, fresh EGR gaskets, new heat shields and hardware.
• Aftercare: warm‑up, then recheck for leaks, and re‑inspect fasteners after a few heat cycles if the manual allows. A light touch of high‑temp anti‑seize on exhaust studs helps for the next service.

Look after the sealing surfaces and use proper torque procedure, and the Pajero’s manifold gaskets will go the distance, keeping things smooth, quiet and efficient under the bonnet.

Popular questions about 1996 Mitsubishi Pajero manifold gaskets

Does the 1996 Pajero have both intake and exhaust manifold gaskets?
Yes. Across the common 1996 engines (6G72/6G74 petrol V6 and 4M40 turbo‑diesel), there are gaskets on the intake manifold and the exhaust manifold. V6 models also have a plenum gasket, and the 4M40 has gaskets at the turbo/manifold and manifold/head interfaces.

What are the tell‑tale symptoms of a failing manifold gasket on a 1996 Pajero?
Expect a hissing noise and unstable idle from an intake leak, or a sharp ticking that quietens as it warms up from an exhaust leak. You might see soot at the exhaust flange, smell fumes, note higher fuel use, or get lean‑mixture codes on petrol models. Diesels can feel lazier off‑boost if the exhaust gasket leaks pre‑turbo.

Should the manifold bolts be re‑torqued, and what specs should be used?
Follow the Mitsubishi Workshop Manual for torque values and the tightening sequence — it matters for sealing. Some techs re‑check after a few heat cycles, particularly on exhaust hardware, but stick to the manual’s guidance and always torque with the engine cold unless otherwise specified.