Kinsler Fuel Injection Tough Pump - Engine Builder Magazine
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Kinsler Fuel Injection Tough Pump

Kinsler’s Tough Pump is made of high alloy steel, is case hardened, precision ground and proprietary coated. The one-piece gear shaft does not allow any radial movement of the gear on the shaft, thus maintaining correct clearance between the gear teeth tips and the housing.

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473400_LKinsler’s Tough Pump is made of high alloy steel, is case hardened, precision ground and proprietary coated. The one-piece gear shaft does not allow any radial movement of the gear on the shaft, thus maintaining correct clearance between the gear teeth tips and the housing. A two-piece gear and shaft introduces more tolerance, which can allow the tips to scrape the gear cavity walls.

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The pump’s housing evolved through housing deflection vs. pressure tests. This final design is one of the strongest in the industry, combined with 12 10-32 studs to secure the extra rigid cover. The housing is MIL-spec hard-coated to within .0001″ tolerance for consistent flow over a long life.

The inlet port comes straight into the gears rathewr than making a 90 degree turn like most pumps. This combined with special internal design features to feed the fuel to the gears gives top-end performance up to 7000 pump RPM without cavitation.

Kinsler’s gear side plates are high alloy steel, heat treated very hard, ground to a 6 micro-inch finish with end-to-end flatness of .0001″. These are coated with a harder-than-carbide composite, then lapped to a 2 micro-inch mirror finish.

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Each pump is flow tested, run-in for two hours and reflow tested before shipping.

For more info: www.kinsler.com.

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