AP Racing Catalogue Issue 4

71 visit www.apracing.com for installation drawings & up to date product range details MASTER CYLINDER - Repair Kits CP2623, CP4400, CP4623, CP5623 & CP6093 Repair kit information for CP2623, CP4400, CP4623, CP5623 & CP6093 master cylinders is tabled below. Please follow the instructions below. INSTRUCTIONS 1) Remove rubber boot (11) and circlip (10) . 2) Carefully remove internal components. 3) Replace the following. (Making sure all seals have been lubricated with Brake Fluid). Primary seal (4) , Piston Washer (5) and the Secondary seal (7) . (Care must be taken when assembling seals, as damage may be caused) 4) Check bore is free from debris. 5) Lubricate bore with Brake Fluid. 6) Reassemble internal components into body. 7) Use new circlip (10) to secure internal components and new boot to protect from debris (11). CP6461, CP6465 & CP6468 REPAIR KITS Repair kit information for CP6465 Master cylinders is tabled below for all bore sizes. Please follow the instructions given. INSTRUCTIONS 1) Remove rubber boot (12) and unscrew end cap (9) . 2) Carefully remove internal components. 3) Replace the following. (Making sure all seals have been lubricated with Brake Fluid). Primary seal (1) , Slydring Bearing (2) , Piston Washer (4) , D-Section Piston Seal (5) & O-Ring End Cap Seal (8) . (Care must be taken when assembling seals, as damage may be caused) 4) Check bore is free from debris. 5) Lubricate bore with Brake Fluid. 6) Reassemble internal components into body. 7) Use original end cap (9) to secure internal components. Tighten to 24Nm (18lbsft) and use loctite threadlocker 242 or 243). 8) Fit new boot (12) to protect from debris . Ref. Description Included in Repair Kit Bore Size Repair Kit Part No. 1. Body 14.00mm CP2623-88RK 2. Spring Guide Pin 15.00mm CP2623-89RK 3. MCyl Return spring 15.9mm (0.625”) 5/8” CP2623-90RK 4. Primary Seal Yes 16.8mm CP2623-905RK 5. Piston Washer Yes 17.8mm (0.70”) CP2623-91RK 6. Piston 19.1mm (0.75”) 3/4” CP2623-92RK 7. Secondary Seal Yes 20.6mm (0.812”) 13/16” *CP2623-930RK* * new piston may be required. see www.apracing.com 8. Push Rod 22.2mm (0.875”) 7/8” CP2623-94RK 9. Piston Stop Washer 23.8mm (0.937”) 15/16” CP2623-95RK 10. Circlip Yes 25.4mm (1.00”) CP2623-96RK 11. Boot Yes 9 3 6 1 4 7 10 12 11 8 2 9 5 Ref. Description Included in Repair Kit Bore Size Repair Kit Part No. 1. Primary Cup Seal Yes 14.9mm CP6465-149RK 2. Slydring Bearing Yes 16.2mm CP6465-162RK 3. MCyl Return spring 17.3mm CP6465-173RK 4. Piston Washer Yes 18.8mm CP6465-188RK 5. D-Section Piston Seal Yes 20.2mm CP6465-202RK 6. Piston Stop 21.2mm CP6465-212RK 7. Piston 21.8mm CP6465-218RK 8. O-Ring Cap Seal Yes 22.4mm CP6465-224RK 9. End Cap 23.7mm CP6465-237RK 10. Body 25.4mm CP6465-254RK 11. Locknut M8x1.25 12. Boot Yes MASTER CYLINDER REPAIR KITS Repair kits are available for AP Racing Master Cylinders detailed in this catalogue. Repair kit Part Nos can be found below and on page 72. IMPORTANT NOTE: The changing of internal components of the master cylinder, in rare cases, may alter the distance to cut-off. If you are unable to bleed the cylinder after a seal change, please consult AP Racing. Also ensure that any parts that have been dis-assembled are kept with the original cylinder and are not mixed. CP7854 and CP7855 REPAIR KITS Repair kit information for CP7854 and CP7855 is tabled below for all Master Cylinders bore sizes. Please follow the instructions given. INSTRUCTIONS 1) Remove rubber boot (11) and circlip (13) . 2) Carefully remove internal components. 3) Replace the following. (Making sure all seals have been lubricated with Brake Fluid). Primary seal (1) , Slydring Bearing (2) , Piston Washer (4) , D-Ring Piston Seal (5) & O-Ring End Cap Seal (9) . (Care must be taken when assembling seals, as damage may be caused). 4) Check bore is free from debris. 5) Lubricate bore with Brake Fluid. 6) Reassemble internal components into body. 7) Use new circlip (13) to secure internal components and new boot to protect from debris (11). Ref. Description Included in Repair Kit Bore Size Repair Kit Part No. 1. Primary Seal Yes 14.00mm CP7855-88RK 2. Slydring Bearing Yes 15.00mm CP7855-89RK 3. MCyl Return Spring 15.9mm (0.625”) 5/8” CP7855-90RK 4. Piston Washer Yes 16.8mm CP7855-905RK 5. D-Ring Piston Seal Yes 17.8mm (0.70”) CP7855-91RK 6. Cut-off Shim 19.1mm (0.75”) 3/4” CP7855-92RK 7. Piston 8. End Cap 20.6mm (0.812”) 13/16” CP7855-93RK 9. O-Ring Cap Seal Yes 10. Lock Nut 5/16” UNF 22.2mm (0.875”) 7/8” CP7855-94RK 11. Boot Yes 12. Spring Guide Pin 23.8mm (0.937”) 15/16” CP7855-95RK 13. Circlip Yes 25.4mm (1.00”) CP7855-96RK 14. Body 10 7 11 1 13 6 8 4 14 12 3 2 5 9 THEDSECTIONSEALISA DIRECTREPLACEMENTFOR THEORIGINALO/RINGSEAL.