Saturday, March 3, 2012

Loosen a Transmission Fill Plug

Miata uses a square-headed manual transmission fill plug.


It can be removed with a 14mm open end wrench, crowsfoot wrench or adjustable wrench.


If the plug is too tight, try a special tool, a 14 mm 8-point (octagon) socket. You can use a torque wrench with this.

Make sure you remove the fill plug before you remove the drain plug.

Torque Specifications

Transmission drain plug: 40-58 N/m, 4.0-6.0 kg/m, 29-43 lb/ft
Transmission fill plug: 25-39 N/m, 2.5-4.0 kg/m, 19-28 lb/ft

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