Valve Stem Seals With Cylinder Head Installed, Replacing: Removing
- Engine/Transmission Assembly Removed And Placed On The Scissor Lift Table:VAS6131B .
-- Remove The Camshafts. Refer To CAMSHAFT, REMOVING AND INSTALLING .
-- Mark The Allocation Of The Roller Rocker Lever And The Hydraulic Adjusting Elements So They Can Be Installed Again.
-- If Necessary, Remove The Roller Rocker Levers With The Hydraulic Adjusting Elements And Place Them On A Clean Surface.
-- Remove Spark Plugs With Spark Plug Removal Tool:3122B .
-- Move Piston For That Cylinder To "Bottom Dead Center (BDC) Position".
-- Position The Valve Cotter Tool Kit - Punch:VAS5161/3 On The Valve Spring Plate And Loosen The Stuck Valve Retainers With A Plastic Mallet.
-- Place the Valve Cotter Tool Kit - Guide Plate 19B:VAS5161/19B from the Valve Cotter Tool Kit:VAS5161 On The Cylinder Head.
-- Secure The Guide Plate With The Knurled Thumb Screws:VAS5161/12 .
-- Install The Valve Cotter Tool Kit - Adapter:T40012 With Sealing Ring In The Spark Plug Thread And Tighten By Hand.
-- Connect The Adapter To The Compressed Air Using A Commercially Available Intermediate Piece And Give Steady Pressure.
- Minimum Pressure: 6 bar (87 psi) Positive Pressure.
-- Install the Retainer:VAS5161/6 with the Guide Forks M6/M8 with Threaded Studs:VAS5161/5 In The Guide Plate.
-- Push Valve Cotter Tool Kit - Assembly Cartridge:VAS5161/8 Into Guide Plate.
-- Engage The Pressure Fork Pressure Fork With Lever For Assembly Cartridge:VAS5161/2 At The Engaging Device And Press The Installation Cartridge Downward.
-- At The Same Time, Rotate The Cartridge Knurled Screw Right Until Points Engage In Valve Retainers.
-- Move the knurled wheel left and right slightly. This presses the valve retainers apart and captures them in the cartridge.
-- Release The Pressure Fork.
-- Remove The Cartridge.
-- Unfasten Guide Plate And Turn It Aside.
- Pressurized Air Hose Remains Connected.
-- Remove The Valve Spring And The Valve Spring Plate.
-- Remove The Valve Stem Seal With The Puller - Valve Seal:3364 .
Risk Of Damage When Installing Valve Stem Seals.
- Place The Plastic Sleeve -A- That Is Attached To Valve Stem Seals -B- On Valve Stem.
-- Lightly Oil The Valve Stem Seal.
-- Slide The Valve Stem Seal Onto The Plastic Sleeve.
-- Carefully Press The Valve Stem Seal Onto The Valve Guide With The Seal Installer - Valve Stem:3365 .
-- Remove The Plastic Sleeve Again.
If The Valve Retainers Were Removed From The Installation Cartridge, They Must Then Be Inserted Into The Valve Insertion Device (6 Dia, 7 Dia) :VAS5161/18 .
- The Large Diameter Of The Valve Retainers Point Upward.
-- Press The Cartridge From Above Onto The Insertion Device And Capture Retainers.
-- Insert Valve Spring And Valve Spring Plate.
- The Tight Spring Coils -Arrow- Face Toward Cylinder Head.
-- Install The Valve Cotter Tool Kit - Guide Plate 19B:VAS5161/19B In The Cylinder Head.
-- Insert Installation Cartridge In Guide Plate.
-- Press The Pressure Fork Down And Pull The Knurled Screw Up While Turning Left And Right. This Inserts The Valve Retainers.
-- Release The Pressure Fork With The Knurled Screw Still Raised.
-- Repeat The Procedure On Each Valve.