Engine - Auto Valve Lash Adjuster, Manual Update
84mitsubishi01 SUBJECT:AUTO VALVE LASH ADJUSTER - SERVICE MANUAL UPDATE
NO. STB-84-09-009
DATE November 1984
MODEL 1985 Cordia/Tredia, Galant, Truck
STB Revision
AUTO VALVE LASH ADJUSTER SERVICE PROCEDURES CHANGED 84-09-009
The service procedures for checking and bleeding the auto valve lash adjusters have been revised, resulting in changes to several pages of the 1985 Service Manuals.
The procedures for bleeding and testing the auto valve lash adjusters have been simplified so that three of the four special service tools for those components, shown in the 1985 Service Manuals, are not needed and have not boon included with your 1985 Special Tool Kit.
SPECIAL TOOLS FOR AUTO VALVE LASH ADJUSTERS The table below lists the special tools that are shown in the 1985 Service Manuals for auto valve lash adjusters and their status.
SPECIAL TOOL STATUS
MD998440 Tester, Leak Down Not needed
MD998441 Retainer, Auto Lash Adj. Not needed
MD998442 Wire, Air Bleed Not needed
MD998443 Holder Auto Lash Adj. Essential
SERVICE MANUAL REVISIONS As reference to this bulletin, write the bulletin number STB-84-09-009 in the STB Revision box on each page affected. Affected pages are tabulated below.
SERVICE MANUAL SPECIAL TOOL REVISED SERVICE PROCEDURE AND/OR
REFERENCE SPECIAL TOOL REFERENCE
Galant 9-8 9-14, 9-31, 9-32, 9-33
Cordia/Tredia 9-8 9-17, 9-34, 9-35, 9-36
Truck 9-16, 9-17 9-39, 9-40, 9-41, 9-70, 9-71, 9-72
Cross out or disregard reference to Special Tools MD998440, MD998441 and MD998442.
BLEEDING AUTO LASH ADJUSTER The service manual procedure for bleeding the auto lash adjuster by submerging it in a container of diesel oil is not needed because the adjusters are self-bleeding when in operation.
A new adjuster may be installed "unprimed", and engine oil pressure will fill it. It should be lubricated with clean engine oil before installation.
After the adjuster is installed in the rocker arm and the engine has been assembled, purge air from the adjusters by gently running-up the engine to about 3000 rpm and allowing it to return slowly to idle over a one-minute period.