TELEDYNE CONTINENTAL AIRCRAFT ENGINE …

1 ISSUEDREVISEDPAGE NO REVISIONMODAYYEARMODAYYEAR1 of 5101497 TELEDYNECONTINENTAL MOTORSAn Allegheny TELEDYNE Box 90 Mobile Alabama 36601 Ph. 334-438-3411 SIL97-12 1997 TELEDYNE Industries, CONTINENTAL AIRCRAFT ENGINESERVICE INFORMATION LETTERC ontains Useful Information Pertaining to Your AIRCRAFT ENGINE sOperational MaintenanceSUBJECT:INSTALLATION OF STARTER ADAPTER SHAFT SEAL AND :ANNOUNCES NEW STARTER ADAPTER SHAFT SEAL SLEEVE P/N654229 AND PROVIDES INSTRUCTIONS FOR REMOVAL ANDINSTALLATION OF THE STARTER ADAPTER SHAFT SEAL :AT STARTER ADAPTER OVERHAUL OR ANYTIME THE STARTERADAPTER SHAFT SEAL REQUIRES :IO-520-BA, BB. TSIO-520-BE, L, LB, UB and WB. ,B,C and INSTRUCTIONSC aution.

2 Stand clear of the propeller at Disconnect the battery in accordance withthe AIRCRAFT manufacturers Remove the ENGINE cowling in accordancewith the AIRCRAFT manufacturers instructions,to gain access to the starter and Disconnect the electrical lead to the enginestarter motor in accordance with the aircraftmanufacturers Remove any accessories, lines, hoses andwire bundles that restrict access to thestarter motor and starter adapter inaccordance with the instructions provided inthe appropriate ENGINE overhaul manual andthe AIRCRAFT manufacturers Remove the starter motor in accordancewith the instructions provided in theapplicable ENGINE overhaul manual oraircraft maintenance Reference Figure 1.

3 Using a 12 point deepsocket loosen and remove nut (4) and spacer(5) or air-conditioning compressor drivesheeve and shims and sleeve (6). Do notmisplace or discard shims as they will needto be reinstalled to assure correct alignmentof the air-conditioning compressor drivesheeve, idle sheeve and compressor Following the instructions provided in theapplicable ENGINE overhaul manual, removethe starter adapter from the Position the starter adapter to allow accessto body (7).9. Remove five sets of hardware (1 & 3) andseal retaining clip (2).10. Remove body (7) from the starter : On turbocharged engines scavengepump idler gear (not shown in Figure 1)SIL97-12 FAA APPROVEDS upersedes M91-11 CATEGORY 5 ISSUEDREVISEDPAGE NO REVISIONMODAYYEARMODAYYEAR2 of 5101497 TELEDYNECONTINENTAL MOTORSAn Allegheny TELEDYNE Box 90 Mobile Alabama 36601 Ph.

4 334-438-3411 SIL97-12will need to be removed from the body(7).11. Remove oil seal (8) from body (7).12. Remove bearing (9) and spacer (10) frombody (7). Do not discard these items, theywill be Clean all parts as required in accordancewith the instructions provided in theapplicable ENGINE overhaul Dimensionally inspect sleeve (6).A. Sleeve P/N 654229 has an outsidediameter of .812 inches to .814 outside diameter is Earlier sleeve P/N 640733 has an outsidediameter of .808 inches to .810 outside diameter is cadmium Replace sleeve P/N 640733, regardless ofcondition, with sleeve P/N Replace any worn or damaged sleeve withnew P/N Inspect bearing (9) and spacer (10) for wearand damage.

5 Replace if wear or damage AND ASSEMBLY1. Using clean ENGINE oil, lubricate sleeve (6).2. Using clean ENGINE oil, lubricate the insidediameter of seal P/N Carefully install sleeve P/N 654229 into sealP/N 653171. Insure that the seal garterspring has not been dislodged from the seallip Using Aviation Permatex, P/N646942,lightly coat the parting surface of body (7).Allow the Permatex to set for a few minutesuntil slightly tacky. See figure Using Grade 3 Silk Thread, P/N 641543,apply a single line of thread over thePermatex surface of body (7). See Figure Insure that gear (12) is correctly Carefully install body (7) onto Install five sets of hardware (3) and (1).

6 Donot install any hardware on the stud adjacentto the oil seal bore. This hardware and sealretainer (2) will be installed after seal (8)and sleeve (6) are installed. Torque nuts (1)to 180 - 220 inch Install spacer (10) into body (7).10. Install bearing (9) into body (7).Note: Bearing (9) has a closed cageon one side and an open cage on theother. The bearing must be installedwith the closed or "Thrust" sidetoward the front of the ENGINE . Theword "Thrust" is stamped on Position the assembled oil seal (8) andsleeve (6) over the starter adapter shaft andinto the seal bore in body (7). Lightly tap orpress the seal and sleeve (8 and 6) as anassembly into its recess in body (7).

7 The sealmust be positioned flush with or within .030inches below the surface of its recess. SeeFigure Install washer (3), seal retaining clip (2) andnut (1) on stud adjacent to oil seal (8).Torque nut to 180 - 220 inch Lubricate starter adapter shaft gear withclean ENGINE oil. Using a new gasket andfollowing the instructions provided in theapplicable ENGINE overhaul manual reinstallthe starter adapter. Torque attachinghardware as specified in the applicableengine overhaul Reinstall spacer (5) or air-conditioning drivesheeve and shims onto starter adapter Lubricate shaft threads with clean ENGINE oiland install 12 point nut (4). Torque nut to450-500 inch NO REVISIONMODAYYEARMODAYYEAR3 of 5101497 TELEDYNECONTINENTAL MOTORSAn Allegheny TELEDYNE Box 90 Mobile Alabama 36601 Ph.

8 334-438-3411 SIL97-1216. If the optional freon compressor drivesheeve is installed it will be necessary toinsure correct sheeve alignment. Refer to theapplicable ENGINE overhaul manual for Following the instructions provided in theapplicable ENGINE overhaul manual andaircraft manufacturers maintenance manualreinstall any accessories, lines, hoses andwire bundles removed to gain access to thestarter Following the instruction provided in theapplicable ENGINE overhaul manual, reinstallthe starter Following the instructions provided in theaircraft manufacturers maintenance manual,connect the electrical lead to the Following the instructions provided in theaircraft manufacturers maintenance manual,re-install the ENGINE Following the instructions provided in theaircraft manufacturers maintenance manual.

9 Re-connect the AIRCRAFT Perform an ENGINE ground run up inaccordance with the instructions provided inthe AIRCRAFT manufacturer s maintenancemanual, AIRCRAFT flight manual/pilotsoperating handbook. Operate the ENGINE forfive minutes at 900 to 1100 to coolthe ENGINE , then perform a normal shut downin accordance with the AIRCRAFT After completing the ENGINE ground run up,remove the ENGINE cowling in accordancewith the AIRCRAFT manufacturers Visually inspect the starter motor and starteradapter area for leaks and loose or missinghardware. Correct any discrepancies Following the instructions provided in theaircraft manufacturers maintenance manual,re-install the ENGINE Complete all log book and maintenancerecord entries prior to returning the engineand AIRCRAFT to service.

10 Note compliancewith this service bulletin in the appropriatesection of the ENGINE : The actions required by thisbulletin are covered by TCM's Gold MedallionWarranty, subject to its terms and NO REVISIONMODAYYEARMODAYYEAR4 of 5101497 TELEDYNECONTINENTAL MOTORSAn Allegheny TELEDYNE Box 90 Mobile Alabama 36601 Ph. 334-438-3411 SIL97-12 FIGURE NO REVISIONMODAYYEARMODAYYEAR5 of 5101497 TELEDYNECONTINENTAL MOTORSAn Allegheny TELEDYNE Box 90 Mobile Alabama 36601 Ph. 334-438-3411 SIL97-12 FIGURE 3.