Mazda MX-5 Miata, Protege Engine Service Manual

Below you will find brief information for Engine MX-5 Miata, Engine Protege. This document will allow you to perform service and repair operations on the engine. It will enable you to remove, inspect and install various engine components, such as the intake manifold, exhaust manifold, cylinder head, crankshaft, oil pan, timing belt, water pump, and oil pump. This document contains important information on how to adjust valve clearance and bleed the cooling system.

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Mazda MX-5 Miata, Protege Engine Service Manual | Manualzz

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Key features

  • engine identification
  • valve clearance adjustment
  • fuel pressure release & priming
  • cooling system bleeding
  • engine removal & installation
  • intake manifold removal & installation
  • exhaust manifold removal & installation
  • cylinder head removal & installation
  • timing belt removal & installation
  • hydraulic lash adjuster

Frequently asked questions

Engines can be identified by engine model and number. See ENGINE IDENTIFICATION CODE. On Miata, engine model and number are stamped on flange at upper right rear of cylinder block deck, as viewed from flywheel. On Protege, engine model and number are stamped on flange at upper left rear of cylinder block deck, as viewed from flywheel.

Valve clearance is not adjustable. Some Hydraulic Lash Adjuster (HLA) noise may occur during engine start-up. Noise should disappear after engine reaches normal operating temperature. If noise persists and oil level is okay, change engine oil. If oil change does not reduce noise, check with manufacturer for modified HLA.

Locate and remove fuel pump relay from under left side of dash, near steering column. Start engine and allow to stall. After engine stalls, attempt to restart engine to ensure no residual pressure exists. Turn ignition off and reinstall fuel pump relay. When disconnecting fuel hoses, cover connection with shop rag to catch fuel leakage. To avoid excessive cranking after servicing, prime fuel system before starting engine.

Slowly pour coolant into radiator at a rate of 1.1 qt. (1.0L) per minute maximum until coolant is level with filler port. Fill coolant reservoir to "F" mark. Securely install radiator cap. Start engine. Operate engine at idle until normal operating temperature is reached. If coolant level warning light illuminates during warm-up, turn engine off and check drain plug and coolant hoses for leaks. Operate engine at 2200-2800 RPM for 5 minutes. Stop engine and allow to cool. Repeat steps 1) and 2). Check coolant level. If engine coolant is not level with filler neck, repeat entire procedure. If engine coolant is level with filler neck, fill reservoir to "F" mark.
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