Practical Boat Maintenance & Marine Repair Guides

Learn how to change Racor fuel filters without spills or air in the system. Step-by-step guide to proper draining, filling, and clean fuel system maintenance.

Comparison chart showing ImpelPro impeller puller advantages over other impeller removal tools, including compact design, bearing system, and 7-year warranty

Step-by-step Detroit Diesel 12V92 impeller removal, inspection, cleaning, and reinstall. Learn the correct method to avoid damage and ensure a clean pull.

Learn how to remove a Cummins Onan generator impeller in tight spaces without removing hoses. See a clean pull method with minimal clearance and no damage.

Learn how to remove a marine impeller in a tight engine room with limited access. See a one-handed method for clean, controlled impeller removal without damage.

See how a failed raw water pump seal caused major saltwater corrosion inside a generator enclosure and how engine room inspections catch it early.

Learn how to replace an impeller on a marine generator step-by-step. Full walkthrough of seawater pump service, inspection, and system bleeding.

Learn how to remove a stuck marine impeller from a Scania 6SY engine. Step-by-step cooling system service from a marine mechanic.

Learn how to reinstall a large marine impeller correctly. Step-by-step lubrication, spline alignment, keyed installation tips, and why you should never use a mallet.

Discover why improvised impeller removal damages pumps and wastes billable hours — and how a bearing-driven marine impeller puller fixes it.