Seized Honda GC160 / GC190 Pressure Washer?

Today we had this old Karcher pressure washer with the Honda GCV190 (similar to GCV160) and axial style pump that appeared seized or jammed. It could have been a seized engine, or a seized pump, so we dove into it a little bit and were pleasantly surprised to find out the reason!
#pressurewashing
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GC160/190
Reliable, Lightweight Power
Specifically designed for home-use power equipment applications, the GC160 provides an ideal source of power for a variety of consumer products.
COMMON APPLICATIONS
Pressure washers
Tillers / cultivators
Agricultural equipment
Water pumps
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FUEL EFFICIENT, HIGH OUTPUT OPERATION
Compact combustion chamber, overhead cam design, and uniblock construction reduce fuel consumption
Powerful torque across a wide RPM range helps reduce engine speed drop from sudden load increases.
COMPACT AND LIGHTWEIGHT
The lightest engines in their class
One of the lightest engines in their class
World's first general purpose engine with an internal timing belt Learn More
The world's first general purpose engine internal timing belt Learn More
Tough resin overhead cam for durability and quietness
Uni-block construction
QUIET, SMOOTH PERFORMANCE
Internal timing belt provides quiet operation
Valvetrain and gear noise is minimized
OHC design minimizes valvetrain and gear noise
Precision engineered and machined components result in lower vibration
PROVEN RELIABILITY
Dua-Lube System provides superior engine lubrication
Simple construction reduces many potential maintenance needs
High quality materials, fit, and finish
Single element air filter
EASY TO USE AND MAINTAIN
Easy access oil drain and fill
Easily accessible spark plug
Proven lifetime timing belt design Learn More
EASY STARTING
Horizontal cross-flow intake port to smooth the flow of fuel
Automatic mechanical decompression Learn More
Electronic ignition
EMISSIONS COMPLIANT
No catalyst necessary
Built in charcoal canister in gas cap
AVAILABLE OPTIONS
Different controls are available for a variety of different applications (pressure washer, lawnmower, log splitter, etc.)
A number of control options are available for a variety of applications (pressure washer, lawnmower, log splitter, etc.)
Electric start version available

[@Rein_Ciarfella]

Great video! I’ve never seen this before although I’ve seen some videos on engine screws backing out of chainsaws under the flywheel and destroying parts or locking up the engine in similar fashion. Interesting how it was the magnet which actually helped to jam that bolt in place. Filed for future reference!