Tractor fuel pump problem fixed with a 5¢ o-ring.. David Brown 990
The previous owner of the DB990 sold it because he was having trouble with air getting in to the fuel pump. I've solved the problem with a new o-ring on the hand pump intake fitting.

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Worthless to Workhorse- David Brown Tractor gets Long Overdue Service/ Repairs then back to work..

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Vintage DB990 Tractor for $500.. Will it Run??

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Mike Brewer Reveals The Truth About What Happened to Wheeler Dealers

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Fixing a Wobbly tractor wheel on the $500 David Brown 990

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Jaw-Dropping Tractor Fail Compilation 2025 | Extreme Heavy Equipment Driving #Part 8

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This Engine Breaks ALL the Rules

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The Strangest American Engine Ever

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German Pilot Tested A Captured Spitfire... His Words Shocked The Luftwaffe

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MTZ: A „szovjet vas”, ami nem kér elnézést

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From wreck to a fine working machine - David Brown 990 - look back

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The Genius of Sweden’s Turretless Tank – Aiming With Suspension

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David Brown 990 removing the rockshaft and hydraulic lift cylinder #22

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Cleaning up after the 50 year flood..

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Unbelievable Workers | Working with Talented Engineers #46 #fail #adamrose #smartworkers

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🔧 Complete CAV DPA Fuel Injection Pump Tear Down and Inspection | Too Worn to Fix 🛠️ RCDiesel

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Starting hydraulic work on another David Brown | Hydraulic oil condition | David Brown 990#1

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David Brown, Part 2 Gearbox and Hydraulic oil : filter change

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Unbelievable Smart Worker & Hilarious Fails | Construction Compilation #8 #adamrose #smartworkers

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CAV Injection pump full strip down to re seal and stop fuel leaks

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