you cannot fix the problem with a new carburetor
20 Seal is not correct for these applications
5000 Using ZENITH replacement Carburetor) Tractors
This base will fit all Donaldson pre-cleaners with a 3" O
Quality Aftermarket: Carb Nozzle
Ignition Tune-Up Kit w/ Rotor Cockshutt E2 E3 E4 E 20 30 35 40 50 Tractors you cannot fix the problemQuality Aftermarket: Ignition Tune Up Kit (For Autolite distributor) Fits: Cockshutt E2, 20 Using AUTOLITE IAD 6004 1C Distributor w 3 3 8"" O. D. Cap, E3, 30 Using AUTOLITE IAD 6003 1A Distributor w 3 3 8"" O. D. Cap, (E4, E5, 40, 50 Using AUTOLITE IAD 6001 1B Distributor w 3 3 8"" O. D. Cap), (35, 35 Blackhawk Using AUTOLITE IAD 4043 Distributor w 3 3 8"" O. D. Cap) Tractors Specifications Kit includes: point set 0. 020"" point gap vibration