Genuine Mazda MX-5 Miata Crankshaft Seal

Mazda MX-5 Miata Crankshaft Seal Parts and Q&A

• Crankshaft Seal
  L3G6-10-602
  Q: How to replace the front Crankshaft Seal on Mazda MX-5 Miata?

  A:

  To do this, first of all disconnect the negative battery cable, then take off the under cover splash shield, which is used on 2005 and earlier models. Place the front of the vehicle on jackstands: and take out the front passenger side tire to get access to the front cover. Then take off the crankshaft pulley, timing belt covers, timing belt and crankshaft pulley hub. Install two prybars or screwdrivers behind the crankshaft sprocket in order to exert even pressure and move it off. Using a razor knife, cut around the lip of the front oil seal, keeping it to the crankshaft sealing surface. Record the depth of the seating and direction of the oil seal lip and then take it off with a screwdriver that is covered with a rag to avoid damaging the crankshaft surface and the engine block. Wipe the bore of the engine block and the crankshaft surface and pour the engine oil over the outside of the new front oil seal and apply engine assembly lubricant or clean engine oil to the lip of the seal. Use your finger to press the oil seal in slightly making sure that the lip is facing the same way as the seal that has been removed. Install the new seal by tapping it firmly into position until it is even with the oil pump body with a seal driver or pocket that is a fraction smaller than the outside diameter of the oil seal and is installed squarely. Install the crankshaft sprocket and timing belt, and install the rest in reverse order. Lastly, test run and confirm oil leak at the front oil cask. Removal of the timing chain cover In 2006 and following models, the timing chain cover should be removed with the seal removal tool or small screwdriver, but should be done without gouging or scratching the aluminum timing cover. Make sure the seal bore is clean, and then with either a seal driver or a socket of the correct outside diameter to the seal drive the new seal into the bore, and then install timing chain cover.