DIY Mercruiser 5.7 distributor cap and rotor replacement

Performing a mercruiser 5.7 distributor cap and rotor replacement is one of those DIY tasks that can save your weekend from a frustrating tow back to the dock. If you've spent any time on the water, you know that marine environments are absolutely brutal on electrical components. Humidity, salt air, and constant temperature swings create the perfect storm for corrosion. When your 5.7-liter Small Block Chevy—the heart of many Mercruiser setups—starts to stumble, misfire, or refuse to start after a long winter, the ignition system is almost always the first place you should look. ...

March 2, 2026 · 7 min · Joice Jenora