The first step and one of the most important!
Make sure that both surfaces are clean from any old silicone or other residues. Use your favorite cleaners and then make sure both surfaces are dry before installation. Inspect both surfaces for flatness; ensure they are free from any deep gouges. Light imperfections (slightly uneven paint/powder coat, light scratches, etc.) are OK, but deep imperfections need to be taken care of to ensure a tight, lasting seal.
Orient the gasket correctly and bolt it up!
Some bolt patterns only allow the gasket to be installed in one orientation, so if the gasket is not lining up, turn and flip the gasket until it does. Sometimes it helps to lay the gasket out on the cover to orient it correctly, then insert one or two bolts through the cover to help hold it in place while getting the cover lined up with the housing.
We always recommend tightening in two passes!
Our gaskets do not require any special torque values to achieve a great seal, but following our provided torque sequence will ensure even pressure across the entire gasket, giving you the best possible seal. If using an OEM cover and hardware, use OE torque specs. If using an aftermarket cover, please consult with the cover manufacturer for the correct torque value for their cover and hardware. We always recommend tightening in two passes. First, tighten to half of your final value, then on the second pass, tighten up to your final value.