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Boat Maintenance Guides, Videos & Tips — Straight from the Engine Room
Impeller removal, engine room maintenance, boat tool guides, and how-to videos — built by a mechanic who's actually done the work.
Impeller Removal on Generator in a Box | ImpelPro
Why Every Boater Needs the ImpelPro Tool
Pro Tips for Safe and Efficient Impeller Replacement
Content created by Eddie Protzeller, marine mechanic and inventor of ImpelPro.
Blog Posts
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Jun 56 min read
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Mar 175 min read
How a Boat Raw Water Cooling System Works (And Why It Overheats)
Learn how a boat raw water cooling system works and why engines overheat. Marine mechanic explains flow from sea inlet to heat exchanger.
Jun 5
Marine Diesel Overheat Diagnosis After a Sea Trial: Cummins 5.9L Impeller Failure | ImpelPro
See a Cummins 5.9L marine diesel overheat diagnosis after a sea trial. Eddie removes a destroyed impeller, finds missing vanes, and back flushes the raw water system.
Jun 3
How to Change Racor Fuel Filters the Right Way — No Mess, No Air in the System | ImpelPro
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.
Apr 14
Detroit Diesel 12V92 Impeller Removal: Full Pull, Clean, and Reinstall (Large Puller)
Step-by-step Detroit Diesel 12V92 impeller removal, inspection, cleaning, and reinstall. Learn the correct method to avoid damage and ensure a clean pull.
Mar 26
Cummins Onan Generator Impeller Removal — No Room, No Hose Removal, Clean Pull | ImpelPro
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.
Mar 22
How to Remove an Impeller in a Tight Engine Room (One-Handed)
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.
Mar 17
What a Failed Pump Seal Does to Your Generator in a Box (And How to Catch It Early)
See how a failed raw water pump seal caused major saltwater corrosion inside a generator enclosure and how engine room inspections catch it early.
Mar 13
How to Replace an Impeller on a Marine Generator (Step-by-Step Tight Space Walkthrough) | ImpelPro
Learn how to replace an impeller on a marine generator step-by-step. Full walkthrough of seawater pump service, inspection, and system bleeding.
Mar 12
How to Remove a Stuck Marine Impeller on a Scania 6SY (Full Start-to-Finish Service)
Learn how to remove a stuck marine impeller from a Scania 6SY engine. Step-by-step cooling system service from a marine mechanic.
Mar 9
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