Genuine Mazda MX-5 Miata Valve Cover

Mazda MX-5 Miata Valve Cover Parts and Q&A

• Valve Cover
  LFE2-10-210C
  Q: How to remove and install the valve cover on Mazda MX-5 Miata?

  A:

  On 2005 and earlier models, you will first of all detach the negative cable off the battery and next the Positive Crankcase Ventilation (PCV) valve and breather hoses off the valve cover. Label and loosen the spark plug wires, then the bolts attached to the valve cover to the Cylinder Head in the reverse order of tightening. Unscrew any tubing or parts that are in the way of the valve cover and unscrew it, maybe under the influence of a rubber mallet so as not to pry between the sealing surfaces. Before installation, the mating surfaces of the housing or cylinder head and cover should be clean, and the old sealant and the gasket material should be removed with a gasket scraper and a rag wetted with lacquer thinner or acetone. When fitting a new valve cover gasket, put silicone sealant in the groove then fit the gasket, when reusing make sure that the gasket and the groove are clean, put RTV sealant and re-fit the gasket. Lightly apply RTV sealant onto areas to be sealed, install the valve cover and install the bolts by hand, tightening them in a desired order to the desired torque. Install the rest of the parts in reverse and ensure that there is no oil spillage following an engine run. To do it on 2006 model and others that follow, first unconnect the negative battery terminal and engine cover. Unscrew the PCV hose of the valve cover, take the strut bar and windshield wiper motor of the car and disconnect the electrical connector of the Oil Control valve (OCV). Take out the ignition coils and the electrical connector of the Camshaft Position (CMP) sensor and remove the valve cover bolts and the valve cover itself. Check the valve cover gaskets, change them in case of leakage or damage and apply silicone sealant to the identified areas and install the valve cover. Install the valve cover bolts in the order that they were removed in to the correct torque, and install them in the opposite order.