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Homemade LB7 Fuel System Repair Verifying Tool
bullfrogjohnson on duramaxdiesels.com
Homemade LB7 fuel system repair verifying tool intended as a means of checking the return line system for leaks prior to engine reassembly. Consists of a Mityvac handheld vacuum/pressure gauge and tubing, the end of a surplus fuel return line, a fuel return line bolt, and a banjo washer. Tool is installed on the cylinder head's fuel return outlet to apply vacuum to the system.
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