TELEDYNE CONTINENTAL AIRCRAFT ENGINE M91-4 service ...

1 TELEDYNE CONTINENTAL AIRCRAFT ENGINE TELEDYNE INDUSTRIES, INC. 1991 TELEDYNE CONTINENTAL MOTORSA ircraft ProductsPO Box 90 Mobile Alabama 36601 Member of GAMAG eneral AviationManufacturer s Associationservice bulletin11 February 1991 SUBJECT:PISTON IDENTIFICATION AND PISTON ring APPLICATION BULLETINMODELSAFFECTED:ALLINSTRUCTIONSTh e objective of the Piston Identification and Piston ring Application Bulletin is to simplify thetask of correctly identifying pistons to enable the selection of the appropriate piston ring set forboth steel, chrome and Cermicrome(TM). to SB M90-5R1, or subsequent revision as applicable for propercylinder choke TO USE THE GUIDE1. Select the ENGINE model from the first column2. Second column is the finished Third column is the casting or forging number cast into the piston. Do not utilize this castingnumber as the finished piston part number. Several finished pistons can be machined from onecasting or Fourth column is the actual number of ring grooves in the Fifth column is the overall or total height of the Sixth column is the measurement from the top of the piston to the center line of the pin andplug Seventh column is piston ring set numbers for STEEL cylinders.

2 ( Not use inchrome cylinders).8. Eighth column is individual piston ring part numbers, listed in order from top to bottom ofpiston in their order. This column is for steel Ninth column is piston ring set numbers for chrome and Cermicrome(TM) Tenth column is individual piston ring part numbers, listed in order from the top to bottom ofpiston in their order. This column is for chrome Sub-notes appearing after part numbers indicates a notation applicable to that **Cast inserted. If it is not feasible to replace the forged pistons with cast inserted pistonsas a complete ENGINE set; it is mandatory that the cast inserted pistons be installed in opposingbays, 1,2; 3,4 etc. Cermichrome is a Registered Trademark of ENGINE Components, Inc.(continued) M91-4 Supersedes M85-8 Technical Portions AreFAA Approved11 FEBRUARY 1991M91-4 Page 1 PISTONSTEEL CYLINDERCHROME CYLINDERENGINEMODELPISTON NUMBERCASTING ORFORGING OF RINGGROOVESOVERALLHEIGHTHEIGHTCENTER OFPIN HOLETO TOPSINGLE SETSRING ORDER TOPTO BOTTOMSINGLE SETSRING ORDER TOPTO )2)3)640157P005*640158P005*640159P005*N/ AN/A646295 Supersedes )2)3)640157P005*640158P005*640159P005*N/ )2)3)640157*640158*640159*N/AN/AC15C75C8 5C185646287(Supersedes 40327) )2)3)4)6496326381106381106381116529781)2 )3)4)638110638110638110640298C90-16FO200 A, BO300A, BC, D646255(Supersedes 530348) )2)3)4)6496326381106381106381116529781)2 )3)4)638110638110638110640298GO300A,C, D, E, F646279(Supersedes 626146) )2)3)4)6496326381106381106381116529781)2 )3)4)638110638110638110640298646063**4(T op 2 Tapered) )2)3)4)648005648006648007648008649227CP1 )2)3)4)648005 CP648006 CP648007 CP648008IO346A633109(Superseded by646063)6289094(Top 2 Tapered) )2)3)4)6480056480066324966480086397441)2 )3)4)

3 648005 CP648006 CP632496648008 CPIO360, A, C,D, G, J, K648049**(Supersedes 642647& 630687)649388642619F630687F4(Top 2 Tapered) )2)3)4)648039648040648041648042649225 CP1)2)3)4)648039 CP648040 CP648041 CP648042* Not SOLD SEPARATELY.** CAST INSERTED. See item # 12, cover FEBRUARY 1991M91-4 Page 2 PISTONSTEEL CYLINDERCHROME CYLINDERENGINEMODELPISTON NUMBERCASTING ORFORGING OF RINGGROOVESOVERALLHEIGHTHEIGHTCENTER OFPIN HOLETO TOPSINGLE SETSRING ORDER TOPTO BOTTOMSINGLE SETSRING ORDER TOPTO BOTTOMIO360A,AB, C, CB, D,DB, G, GB, H,HB, J, JB,K,KB626247(Supersedes642229)642619F4( Top 2 Tapered) )2)3)4)648039648040648041648042649225 CP1)2)3)4)648039 CP648040 CP648041 CP648042 TSIO360A,B,C,D,E,F,G,H648048(Supersedes6 46743**, 633428,642230)6467434(Top 2 Tapered) )2)3)4)648039648040648041648042649225 CP1)2)3)4)648039 CP648040 CP648041 CP648042L/TSIO360 ALL MODELSEXCEPT LB648048(Supersedes646743**, 642230)6467434(Top 2 Tapered) )2)3)4)648039648040648041648042649225 CP1)2)3)4)648039 CP648040 CP648041 CP648042 TSIO360LB & MB648048(Supersedes646743**, 633428,642230)6467434(Top 2 Tapered) )2)3)4)648039648040648041648042649225 CP1)2)3)4)648039 CP648040 CP648041 CP648042646710**/**(Supersedeby 646743) )2)3)4)

4 648039648040648041648042649225 CP1)2)3)4)648039 CP648040 CP648041 CP648042E-185-225O470A, E, J,IO470J, K649044**(Supersedes534895) )2)3)4)648009648010648011648012649226 CP1)2)3)4)648010 CP648010 CP648011 CP648012534895(Supersededby 649044) )2)3)6395676395686397686397231)2)3)64029 96402996397680470-110470-7B649044 649044 4 1)2)3)4)648009648010648011648012649226 CP1)2)3)4)648010 CP648010 CP648011 CP648012** CAST INSERTED. See item #12, cover page.** WHEN REPLACING 646455 WITH 646743 PISTON, 6492285P005 ring SET MUST BE USED.** WHEN THE 646282 CYLINDER IS USED, THE 639570A7P005 ring SET IS USED WITH THE 646743 FEBRUARY 1991M91-4 Page 3 PISTONSTEEL CYLINDERCHROME CYLINDERENGINEMODELPISTONNUMBERCASTING ORFORGING NONO. OF RINGGROOVESOVERALLHEIGHTHEIGHTCENTER OFPIN HOLETO TOPSINGLE SETSRING ORDERTOP TO BOTTOMSINGLE SETSRING ORDERTOP TO BOTTOM534895(Superseded by649044) )2)3)6395676395676397686397231)2)3)64029 9640299639768O470-11O470-7B531510(Supers eded by534895) )2)3)6395676395676397686397231)2)3) )2)3)4)6480096480106480116480126492261)2 )3)4)648009 CP648010 CP648011 CP648012O470-4 13/13A535133(Superseded by646263 inengine sets) )2)3)6395676395676397686397231)2)3)64029 9640299639768646263632932O470K,L,R,S,-4, -13,-13 AUse: 649226 for steel barrels 649226CP for chrome )2)3)4)6480096480106480116480126492261)2 )3)4)648009 CP648010 CP648011 CP648012O470K,L539614(Superseded by646263) )2)3)6395676395676397686397231)2)3)64029 964029963976811 FEBRUARY 1991M91-4 Page 4 PISTONSTEEL CYLINDERCHROME CYLINDERENGINEMODELPISTONNUMBERCASTING ORFORGING NONO.

5 OF RINGGROOVESOVERALLHEIGHTHEIGHTCENTER OFPIN HOLETO TOPSINGLE SETSRING ORDERTOP TO BOTTOMSINGLE SETSRING ORDERTOP TO BOTTOM626992(Superseded by646263) )2)3)4)6395676395686397686480126397341)2 )3)4)640299640299639768648012 NOTE: Oil control groove is 5/32 . Top 2 ring grooves are (Superseded by646263) )2)3)4)6395676395686480116480126524331)2 )3)4)640299640299639768 CP648012O470K,L,RNOTE: Oil control groove is 3/16 . Top 2 ring grooves are (Superseded by646263) )2)3)4)648009648010648011648012649226 CP1)2)3)4)648009CP {648010CP {648011CP648012O470K,L,R,SNOTE: Oil control groove is 3/16 . Top 2 ring grooves are semi-keystoneO470B,G,M,PIO470C,G,P,R,T64 80286480284(Top 2 Tapered) )2)3)4)648009648010648011648012649226 CP1)2)3)4)648009CP {648010CP {648011CP648012{ ring set may contain 648009 FEBRUARY 1991M91-4 Page 5 PISTONSTEEL CYLINDERCHROME CYLINDERENGINEMODELPISTONNUMBERCASTING ORFORGING NONO. OF RINGGROOVESOVERALLHEIGHTHEIGHTCENTER OFPIN HOLETO TOPSINGLE SETSRING ORDERTOP TO BOTTOMSINGLE SETSRING ORDERTOP TO BOTTOMLIO470A,O470G,M,IO470C539814(Super seded BY648028)5351335378833(Top 2 Tapered) )2)3)6480106480106397686397261)2)3)64801 0CP {648010CP {639768646772 Cast Insert(Superseded by648028) )2)3)4)6480096480106480116480126534331)2 )3)4)648010CP {648010CP {648011CP648012537883(Superseded by539814) )2)3)6395676395686397686397231)2)3)64029 9640299639768O470 UIO470D,E,F,H,L,M,N,S,U,V648029**6480294 (Top 2 Tapered) )2)3)4)6480096480106480116480126534331)2 )3)4)648010CP {648010CP {648011CP648012646280(Superseded by648029)646280 Cast Insert4(Top 2 Tapered) )2)3)4)6480096480106480116480126534331)2 )3)4)648010CP {648010CP {648011CP648012631481(Superseded by648029)631481F 4(Top 2 Tapered) )2)3)4)6480096480106480116480126534331)2 )3)4)648010CP {648010CP {648011CP648012 NOTE.}}}}}}}}}}}}}}}

6 Oil Control ring is 3/16627738(Superseded by648029)627738F 4(Top 2 Tapered) )2)3)4)6480096480106480116480126397291)2 )3)4)648010CP {648010CP {639768648012{ ring set may contain 648009 rings.**CAST INSERTED. See item #12, cover FEBRUARY 1991M91-4 Page 6 PISTONSTEEL CYLINDERCHROME CYLINDERENGINEMODELPISTONNUMBERCASTING ORFORGING NONO. OF RINGGROOVESOVERALLHEIGHTHEIGHTCENTER OFPIN HOLETO TOPSINGLE SETSRING ORDERTOP TO BOTTOMSINGLE SETSRING ORDERTOP TO BOTTOMTSIO470B,C, )2)3)4)648009648010648011648012649226 CP1)2)3)4)648010CP {648010CP {648011648012629185(Superseded BY631540)631481F4(Top 2 Tapered) )2)3)4)6480096480106397686480126397291)2 )3)4)648010CP {648010CP {640301648012IO520,ALL MODELS648045** 648045 4(Top 2 Tapered) )2)3)4)648005648006648007648008649227CP1 )2)3)4)648005CP648006CP648007CP648008648 013**(Superseded BY648045)6460724(Top 2 Tapered) )2)3)4)648005648006648007648008649227CP1 )2)3)4)648005CP648006CP648007CP648008631 475(Superseded BY648045)6318924(Top 2 Tapered) )2)3)4)648005648006648007648008649227CP1 )2)3)4)648005CP648006CP648007CP648008646 072(Superseded BY648045) )2)3)4)648005648006648007648008649227CP1 )2)3)4)648005CP648006CP648007CP648008 TSIO520 ALL MODELSE xcept T, UB,VB,WB,BE,AE648044**4(Top 2 Tapered) )2)3)4)648005648006648007648008649227CP1 )2)3)}}}}}}}

7 4)648005CP648006CP648007CP648008632585(S uperseded BY648044)4(Top 2 Tapered) )2)3)4)648005648006648007648008649227CP1 )2)3)4)648005CP648006CP648007CP648008{ ring set may contain 648009 rings.**CAST INSERTED. See item #12, cover FEBRUARY 1991M91-4 Page 7 PISTONSTEEL CYLINDERCHROME CYLINDERENGINEMODELPISTONNUMBERCASTING ORFORGING NONO. OF RINGGROOVESOVERALLHEIGHTHEIGHTCENTER OFPIN HOLETO TOPSINGLE SETSRING ORDERTOP TO BOTTOMSINGLE SETSRING ORDERTOP TO BOTTOMTSIO520 ALL MODELSE xcept BE,AE642761**Cast Insert(Superseded BY648044)6427614(Top 2 Tapered) )2)3)4)648005648006648007648008649227CP1 )2)3)4)648005CP648006CP648007CP648008646 303**(Superseded BY648044)6427614(Top 2 Tapered) )2)3)4)648005648006648007648008649227CP1 )2)3)4)648005CP648006CP648007CP648008648 033**(Superseded BY648044)4(Top 2 Tapered) )2)3)4)648005648006648007648008649227CP1 )2)3)4)648005CP648006CP648007CP648008L/T SIO520 ALL MODELSE xcept AE648044**6480444(Top 2 Tapered) )2)3)4)648005648006648007648008649227CP1 )2)3)4)648005CP648006CP648007CP648008648 033**Cast Insert(Superseded BY648044)6480334(Top 2 Tapered) )2)3)4)648005648006648007648008649227CP1 )2)3)4)648005CP648006CP648007CP648008643 619**Cast Insert(Superseded BY648044)6427614(Top 2 Tapered) )2)3)4)648005648006648007648008649227CP1 )2)3)4)}

8 648005CP648006CP648007CP648008648037**64 80374(Top 2 Tapered)L/TSIO520 AEUsed in ENGINE sets, 630046 pin must be )2)3)4)648005648006648007648008649227CP1 )2)3)4)648005CP648006CP648007CP648008646 311**(Superseded by648037in ENGINE sets5122-N630046 pin must be used.) )2)3)648005648006641303*1)2)3)648005CP64 8006CP636144*648007 and 648007 CP rings cannot be used on 646311 and 643735 piston.**CAST INSERTED. See item #12, cover FEBRUARY 1991M91-4 Page 8 PISTONSTEEL CYLINDERCHROME CYLINDERENGINEMODELPISTONNUMBERCASTING ORFORGING NONO. OF RINGGROOVESOVERALLHEIGHTHEIGHTCENTER OFPIN HOLETO TOPSINGLE SETSRING ORDERTOP TO BOTTOMSINGLE SETSRING ORDERTOP TO BOTTOML/TSIO520AE*643735**(Superseded by648037in ENGINE )2)3)648005648006641302*1)2)3)648005CP64 8006CP636144IO550B,C,D,E,F,L648046**6480 464(Top 2 Tapered) )2)3)4)648005648006648007648008649227CP1 )2)3)4)648005CP648006CP648007CP648008646 533**(Superseded by648046)6465334(Top 2 Tapered) )2)3)4)648005648006648007648008649227CP1 )2)3)4)648005CP648006CP648007CP648008 GTSIO520C,D,G,H648044**4(Top 2 Tapered) )2)3)4)648005648006648007648008 TCM does not rec-ommend chromecylinder be usedon **(Superseded by648044)NONE4(Top 2 Tapered) )2)3)4)648005648006648007648008 TCM does not rec-ommend chromecylinder be usedon.

9 TCMdoes noterecommendoversize boringof cylindersbeyond onGTSIO520 (Superseded by648044)632491F6313925(Top 2 Tapered) )2)3)4)5)648005648006640627648007648008 TCM does not rec-ommend chromecylinder be usedon ,K648044**6480444(Top 2 Tapered) )2)3)4)648005648006648007648008 TCM does not rec-ommend chromecylinder be usedon **Cast Insert(Superseded by648o44)NONE4(Top 2 Tapered) )2)3)4)648005648006648007648008 TCM does not rec-ommend chromecylinder be usedon GTSIO520.*648007 and 648007 CP rings cannot be used on 646311 and 643735 pistons.**CAST INSERTED. See item #12, cover FEBRUARY 1991M91-4 Page 9 PISTONSTEEL CYLINDERCHROME CYLINDERENGINEMODELPISTONNUMBERCASTING ORFORGING NONO. OF RINGGROOVESOVERALLHEIGHTHEIGHTCENTER OFPIN HOLETO TOPSINGLE SETSRING ORDERTOP TO BOTTOMSINGLE SETSRING ORDERTOP TO BOTTOM635141(Superseded by648044)6351415(Top 2 Tapered) )2)3)4)5)648005648006640627648007648008 TCM does not rec-ommend chromecylinder be usedon ,KCAUTION: TCMdoes noterecommendoversize boringof cylindersbeyond onGTSIO520 (Superseded by648044)4(Top 2 Tapered) )2)3)4)648005648006648007648008 TCM does not rec-ommend chromecylinder be usedon ,D,FG,H,K648044**4(Top 2 Tapered) )2)3)4)648005648006648007648008 TCM does not rec-ommend chromecylinder be usedon (Superseded by648044)640945632491F4(Top 2 Tapered) )2)3)4)648005648006648007648008 TCM does not rec-ommend chromecylinder be usedon ,D,FG,H,K,L,M641350(Superseded by648044)6413504(Top 2 Tapered) )2)3)4)648005648006648007648008 TCM does not rec-ommend chromecylinder be usedon **Cast Insert(Superseded by648044)6417824(Top 2 Tapered) )2)3)4)648005648006648007648008 TCM does not rec-ommend chromecylinder be usedon Models648044**4(Top 2 Tapered) )2)3)4)648005648006648007648008 TCM does not rec-ommend chromecylinder be usedon GTSIO520.

10 **CAST INSERTED. See item #12, cover FEBRUARY 1991M91-4 Page 10 PISTONSTEEL CYLINDERCHROME CYLINDERENGINEMODELPISTONNUMBERCASTING ORFORGING NONO. OF RINGGROOVESOVERALLHEIGHTHEIGHTCENTER OFPIN HOLETO TOPSINGLE SETSRING ORDERTOP TO BOTTOMSINGLE SETSRING ORDERTOP TO BOTTOM648033(Superseded by648044)(Top 2 Tapered) )2)3)4)648005648006640627648007 TCM does not rec-ommend chromecylinder be usedon **Cast Insert(Superseded by648044)642761(Top 2 Tapered) )2)3)4)648005648006640627648007 TCM does not rec-ommend chromecylinder be usedon ModelsCAUTION: TCMdoes noterecommendoversize boringof cylindersbeyond onGTSIO520 **Cast Insert(Superseded by648044)646303(Top 2 Tapered) )2)3)4)648005648006640627648007 TCM does not rec-ommend chromecylinder be usedon GTSIO520.**CAST INSERTED. See item #12, cover page.