Overview Of Bellows Conversion
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- To convert the bellows variant -A- to version -A1- , the hydraulic unit, the brake booster -4- with brake master cylinder and the intermediate piece -11- must be removed. See Fig 1 .
- The assembly of the brake master cylinder with the brake booster -4- must not be disconnected for removal and installation if both parts should be continued to be used! See Fig 1 .
- To remove the intermediate piece -11- , the battery must be removed! See Fig 1 . This will prevent damage of the components in the surrounding area.
- The following parts must be exchanged or replaced for first installation of variant -A1- (replacement): see Fig 1 .
- Remove short bellows -2- on the brake booster and the long bellows -1- on the firewall. See Fig 1 .
- Remove the grommet (rubber groove ring) -3- for mounting the long (former) bellows (not replaced). See Fig 1 .
- The following parts are used in place of the removed parts -1/2/3- : Bellows -B- (already mounted on new brake boosters), connection sleeve -7.1- with sealing ring -7.3- , the seal for the firewall -7.2- and the hose clamps (clamps) -6 and 6.1- . See Fig 1 .
- The two push rods -12 and 9- are to be replaced with the modified version -12.1 and 9.1- See Fig 1 .
- Additional assembly - Boxster model '97: The brake pedal must be replaced in addition to the new push rod -9.1- in Boxster model year '97 see ADDITIONAL ASSEMBLY - BOXSTER MODEL '97 . See Fig 1 .
Difference in the push rods: