TELEDYNE CONTINENTAL AIRCRAFT ENGINE M91-4 Service .
TELEDYNE CONTINENTAL AIRCRAFT ENGINEservice bulletinM91-4Supersedes M85-8Technical Portions AreFAA Approved11 February 1991SUBJECT:MODELSAFFECTED:PISTON IDENTIFICATION AND PISTON RING APPLICATION BULLETINALLINSTRUCTIONSThe 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).WARNING.Refer to SB M90-5R1, or subsequent revision as applicable for propercylinder choke dimensions.HOW TO USE THE GUIDE1. Select the engine model from the first column2. Second column is the finished piston.3. 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 forging.4. Fourth column is the actual number of ring grooves in the piston.5. Fifth column is the overall or total height of the piston.6. Sixth column is the measurement from the top of the piston to the center line of the pin andplug hole.7. Seventh column is piston ring set numbers for STEEL cylinders. (Caution.Do 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 cylinders.9. Ninth column is piston ring set numbers for chrome and Cermicrome(TM) cylinders.10. 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 cylinders.11. Sub-notes appearing after part numbers indicates a notation applicable to that individualpart.12. **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, e.g. 1,2; 3,4 etc. Cermichrome is a Registered Trademark of Engine Components, Inc.(continued) TELEDYNE INDUSTRIES, INC. 1991TELEDYNE CONTINENTAL MOTORSMember of GAMAAircraft ProductsGeneral AviationManufacturer’s AssociationPO Box 90 Mobile Alabama 36601
4557646295Supersedes 40731633109(Superseded by646063)642619F630687F649388* Not SOLD SEPARATELY.** CAST INSERTED. See item # 12, cover page.648049**(Supersedes 642647& 630687)646063**IO346AIO360, A, C,D, G, J, K4(Top 2 Tapered)530348646279(Supersedes 626146)6289094(Top 2 Tapered)530348646255(Supersedes 530348)4(Top 2 Tapered)4444940646287(Supersedes 40327)C15C75C85C185C90-16FO200A, BO300A, BC, DGO300A,C, D, E, F3NO. OF RINGGROOVES334057740731CASTING ORFORGING NO.4557PISTON NUMBERPISTON4957A75A65ENGINEMODEL11 FEBRUARY GHTCENTER OFPIN HOLETO TOP1.796Page 7A2640157A2P005SINGLE CYL.RING SETS640157A2P005RING ORDER TOPTO BOTTOM1) 640157P005*2) 640158P005*3) 640159P005*1) 640157P005*2) 640158P005*3) 640159P005*1) 640157*2) 640158*3) 640159*1) 6496322) 6381103) 6381104) 6381111) 6496322) 6381103) 6381104) 6381111) 6496322) 6381103) 6381104) 6381111) 6480052) 6480063) 6480074) 6480081) 6480052) 6480063) 6324964) 6480081) 6480392) 6480403) 6480414) 648042STEEL CYLINDER649225 CP639744649227CP652978652978652978N/AN/ASINGLE CYL.RING 298638110638110638110640298648005 CP648006 CP648007 CP648008648005 CP648006 CP632496648008 CP648039 CP648040 CP648041 CP648042N/AN/ARING ORDER TOPTO BOTTOMN/ACHROME CYLINDERM91-4
646710648048(Supersedes646743**, 642230)648048(Supersedes646743**, 633428,642230)646710**/****(Supersedeby 646743)L/TSIO360ALL MODELSEXCEPT LBTSIO360LB & MB649044534895534895(Supersededby 364674343444(Top 2 Tapered)4(Top 2 Tapered)4(Top 2 Tapered)4(Top 2 Tapered)NO. OF 681.681.59541.5904HEIGHTCENTER OFPIN HOLETO TOPPage )4)1)2)3)1)2)3)4)RING ORDER TOPTO BOTTOM1) 6480392) 6480403) 6480414) 648042STEEL CYLINDERSINGLE CYL.RING SETS** 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 PISTON.0470-110470-7BE-185-225O470A, E, J,IO470J, K646743648048(Supersedes646743**, Supersedes642229)IO360A,AB, C, CB, D,DB, G, GB, H,HB, J, JB,K,KBCASTING ORFORGING NO.PISTON NUMBERENGINEMODEL11 FEBRUARY 1991649226 CP639723649226 CP649225 CP649225 CP649225 CP649225 CP649225 CPSINGLE CYL.RING 1)2)3)4)648010 CP648010 CP648011 CP648012648039 CP648040 CP648041 CP648042648010 CP648010 CP648011 CP648012640299640299639768648039 CP648040 CP648041 CP648042648039 CP648040 CP648041 CP648042648039 CP648040 CP648041 CP648042RING ORDER TOPTO BOTTOM1) 648039 CP2) 648040 CP3) 648041 CP4) 648042CHROME CYLINDERM91-4
11O470-7BENGINEMODEL539614(Superseded by646263)539614Use: 649226 for steel barrels 649226CP for chrome barrels.632932535133535133(Superseded by646263 inengine sets)646263632932531510531510(Superseded by534895)646263534895CASTING ORFORGING NO534895(Superseded by649044)PISTONNUMBER11 FEBRUARY 1991343433NO. OF 9951.9811.9771.7921.7881.792HEIGHTCENTER OFPIN HOLETO TOPPage E CYL.RING 67639567639768RING ORDERTOP TO BOTTOMSTEEL CYLINDER639723649226639723649226639723639723SINGLE CYL.RING 640299639768648009 CP648010 CP648011 CP648012640299640299639768648009 CP648010 CP648011 CP648012640299640299639768640299640299639768RING ORDERTOP TO BOTTOMCHROME CYLINDERM91-4
626992632932CASTING ORFORGING NO4NO. OF 1.9811.9771.9811.9776480286480284(Top 2 Tapered)3.61772.01572.0197NOTE: Oil control groove is 3/16”. Top 2 ring grooves are semi-keystone640518(Superseded by646263)NOTE: Oil control groove is 3/16”. Top 2 ring grooves are rectangular.632932(Superseded by646263)1.9811.977HEIGHTCENTER OFPIN HOLETO TOPPage 4NOTE: Oil control groove is 5/32”. Top 2 ring grooves are rectangular.626992(Superseded by646263)PISTONNUMBER{ Ring set may contain 648009 RENGINEMODEL11 FEBRUARY 1991649226649226639567A13639567A10SINGLE CYL.RING 11648012639567639568639768648012RING ORDERTOP TO BOTTOMSTEEL CYLINDER649226 CP649226 CP652433639734SINGLE CYL.RING SETS1)2)3)4)1)2)3)4)1)2)3)4)1)2)3)4)648009CP {648010CP {648011CP648012648009CP {648010CP {648011CP648012640299640299639768 CP648012640299640299639768648012RING ORDERTOP TO BOTTOMCHROME CYLINDERM91-4
646280Cast Insert631481F646280(Superseded by648029)631481(Superseded by648029)627738F{ Ring set may contain 648009 rings.**CAST INSERTED. See item #12, cover page.627738(Superseded by648029)NOTE: Oil Control Ring is 3/16648029535133537883537883(Superseded by539814)648029**646772646772Cast Insert(Superseded 539814(Superseded BY648028)LIO470A,O470G,M,IO470CCASTING ORFORGING NOPISTONNUMBERENGINEMODEL11 FEBRUARY 19914(Top 2 Tapered)4(Top 2 Tapered)4(Top 2 Tapered)4(Top 2 Tapered)343(Top 2 Tapered)NO. OF 2.1462.1462.0852.0812.01772.0852.081HEIGHTCENTER OFPIN HOLETO TOPPage INGLE CYL.RING 648010639768RING ORDERTOP TO BOTTOMSTEEL SINGLE CYL.RING 1)2)3)648010CP {648010CP {639768648012648010CP {648010CP {648011CP648012648010CP {648010CP {648011CP648012648010CP {648010CP {648011CP648012640299640299639768648010CP {648010CP {648011CP648012648010CP {648010CP {639768RING ORDERTOP TO BOTTOMCHROME CYLINDERM91-4
44(Top 2 Tapered)646072646072(Superseded BY648045)4(Top 2 Tapered)632585(Superseded BY648044)631892631475(Superseded BY648045)4(Top 2 Tapered)4(Top 2 Tapered)646072648013**(Superseded BY648045)4(Top 2 Tapered)4(Top 2 Tapered)4NO. OF seded BY631540)648045**631481FCASTING ORFORGING NO631540PISTONNUMBER{ Ring set may contain 648009 rings.**CAST INSERTED. See item #12, cover page.TSIO520ALL MODELSExcept T, UB,VB,WB,BE,AEIO520,ALL MODELSTSIO470B,C,DENGINEMODEL11 FEBRUARY .9181.9222.0462.0422.0462.042HEIGHTCENTER OFPIN HOLETO TOPPage 6SINGLE CYL.RING 8011648012RING ORDERTOP TO BOTTOMSTEEL 9227CP639729649226 CPSINGLE CYL.RING 8010CP {648010CP {640301648012648010CP {648010CP {648011648012RING ORDERTOP TO BOTTOMCHROME CYLINDERM91-4
642761643619**Cast Insert(Superseded BY648044)4(Top 2 Tapered)4(Top 2 Tapered)4(Top 2 Tapered)4(Top 2 Tapered)Used in engine sets, 630046 pin must be used.648037648033648033**Cast Insert(Superseded BY648044)648037**648044648044**4(Top 2 Tapered)4(Top 2 Tapered)4(Top 2 Tapered)NO. OF TCENTER OFPIN HOLETO TOPPage 7646311**5122-N33.337(Superseded by648037in engine sets630046 pin must be used.)*648007 and 648007 CP rings cannot be used on 646311 and 643735 piston.**CAST INSERTED. See item #12, cover page.L/TSIO520AEL/TSIO520ALL MODELSExcept AE642761646303**(Superseded BY648044)648033**(Superseded BY648044)642761642761**Cast Insert(Superseded BY648044)TSIO520ALL MODELSExcept BE,AECASTING ORFORGING NOPISTONNUMBERENGINEMODEL11 FEBRUARY 9227SINGLE CYL.RING 008RING ORDERTOP TO BOTTOMSTEEL 9227CP649227CPSINGLE CYL.RING NG ORDERTOP TO BOTTOMCHROME CYLINDERM91-4
648044632491F631392632491(Superseded by648044)648044**NONE648033**(Superseded by648044)4(Top 2 Tapered)5(Top 2 Tapered)4(Top 2 Tapered)4(Top 2 Tapered)4(Top 2 Tapered)4(Top 2 Tapered)3NO. OF CENTER OFPIN HOLETO TOPPage 8648033**NONE43.437Cast Insert(Top 2 Tapered)(Superseded by648o44)*648007 and 648007 CP rings cannot be used on 646311 and 643735 pistons.**CAST INSERTED. See item #12, cover page.GTSIO520F,KCAUTION: TCMdoes noterecommendoversize boringof cylindersbeyond 0.005 onGTSIO520’s.648044**646533646533**(Superseded ,F,L5122-NCASTING ORFORGING NO*643735**(Superseded by648037in engine setsPISTONNUMBERL/TSIO520AEENGINEMODEL11 FEBRUARY 0625A6SINGLE CYL.RING 8006641302*RING ORDERTOP TO BOTTOMSTEEL CYLINDER649227CP649227CPSINGLE CYL.RING 648007CP648008648005CP648006CP636144TCM does not recommend chromecylinder be usedon GTSIO520.TCM does not recommend chromecylinder be usedon GTSIO520.TCM does not recommend chromecylinder be usedon GTSIO520.TCM does not recommend chromecylinder be usedon GTSIO520.TCM does not recommend chromecylinder be usedon GTSIO520.1)2)3)4)1)2)3)4)1)2)3)RING ORDERTOP TO BOTTOMCHROME CYLINDERM91-4
641782641782**Cast Insert(Superseded by648044)648044**641350641350(Superseded by648044)4(Top 2 Tapered)4(Top 2 Tapered)4(Top 2 Tapered)4(Top 2 Tapered)640945(Superseded by648044)4(Top 2 Tapered)5(Top 2 Tapered)NO. OF RINGGROOVES4(Top 2 Tapered)640945632491F635141CASTING ORFORGING NOPISTON648044**641883(Superseded by648044)635141(Superseded by648044)PISTONNUMBER**CAST INSERTED. See item #12, cover page.GTSIO520All ION: TCMdoes noterecommendoversize boringof cylindersbeyond 0.005 onGTSIO520’s.GTSIO520F,KENGINEMODEL11 FEBRUARY 441.8401.8441.840HEIGHTCENTER OFPIN HOLETO TOPPage E CYL.RING 648008648005648006640627648007648008RING ORDERTOP TO BOTTOMSTEEL CYLINDERSINGLE CYL.RING SETSTCM does not recommend chromecylinder be usedon GTSIO520.TCM does not recommend chromecylinder be usedon GTSIO520.TCM does not recommend chromecylinder be usedon GTSIO520.TCM does not recommend chromecylinder be usedon GTSIO520.TCM does not recommend chromecylinder be usedon GTSIO520.TCM does not recommend chromecylinder be usedon GTSIO520.TCM does not recommend chromecylinder be usedon GTSIO520.RING ORDERTOP TO BOTTOMCHROME CYLINDERM91-4
642761**Cast Insert(Superseded by648044)648033(Superseded by648044)PISTONNUMBER642761CASTING ORFORGING NO646303646303**Cast Insert(Superseded by648044)**CAST INSERTED. See item #12, cover page.CAUTION: TCMdoes noterecommendoversize boringof cylindersbeyond 0.005 onGTSIO520’s.ENGINEMODELGTSIO520All Models11 FEBRUARY 1991(Top 2 Tapered)(Top 2 Tapered)(Top 2 Tapered)NO. OF 1.8351.8391.8351.8391.835HEIGHTCENTER OFPIN HOLETO TOPPage 10649227649227649227SINGLE CYL.RING SETS1)2)3)4)1)2)3)4)1)2)3)4)TCM does not recommend chromecylinder be usedon GTSIO520.648005648006640627648007TCM does not recommend chromecylinder be usedon GTSIO520.RING ORDERTOP TO BOTTOMTCM does not recommend chromecylinder be usedon GTSIO520.SINGLE CYL.RING SETSCHROME 648007RING ORDERTOP TO BOTTOMSTEEL CYLINDERM91-4
TELEDYNE CONTINENTAL AIRCRAFT ENGINE TELEDYNE INDUSTRIES, INC. 1991 TELEDYNE CONTINENTAL MOTORS Aircraft Products PO Box 90 Mobile Alabama 36601 Member of GAMA General Aviation Manufacturer’s Association service bulletin 11 February 1991 SUBJECT: PISTON IDENTIFICATION AN
continental motors an allegheny teledyne company p.o. box 90 mobile al 36601 334-438-3411 teledyne continental aircraft engine service information letter contains useful information pertaining to the continental aircraft engine subject: current listing of sealants, lubr icants, & adhesives authorized by tcm.
Finnish M91 VKT 1942 date 7.62X54 Excellent condition and bore 350.00 Westinghouse M91 7.62X54 Finnish capture VG condition 400.00 Russian M91/30 Tula 1939 date Exc. refurbished / WWII stock 280.00 Russian Imperial M91 Izhevsk 1915 date Finn capture Good 400.00 Czech VZ24 1927 Czech military proofs excellent bore w/ bayonet 350.00
TELEDYNE CONTINENTAL AIRCRAFT ENGINE CRITICAL SERVICE BULLETIN Compliance Necessary To Maintain Safety . NOTE: Engines listed in A, B and C may have been overhauled or repaired after shipment from TCM . IO-520 Series Overhaul Manual. Form # X30574A, TSIO-520 Permold Series Overhaul Manual.
1.Engine Oil SABA 13 1.Engine Oil 8000 14 1.Engine Oil 6000 15 1.Engine Oil 3000 16 1.Engine Oil Alvand 17 1.Engine Oil Motor Cycle Engine Oil M-150 18 1.Engine Oil M-100 19 1.Engine Oil Gas Engine Oil CNG-BUS 20 1.Engine Oil G.I.C.X.LA 21 1.Engine Oil G.I.C.X. 22 1.Engine Oil Diesel Engine Oil Power 23 1.Engine Oil Top Engine 24
The warrantor is Teledyne Isco, 4700 Superior, Lincoln, NE 68504, U.S.A. * This warranty applies to the USA and countries where Teledyne Isco does not have an authorized dealer. Customers in countries outside the USA, where Teledyne Isco has an authorized de aler, should contact their Teledyne Isco dealer for warranty service.
The warrantor is Teledyne Isco, 4700 Superior, Lincoln, NE 68504, U.S.A. * This warranty applies to the USA and countries where Teledyne Isco does not have an authorized dealer. Customers in countries outside the USA, where Teledyne Isco has an authorized de aler, should contact their Teledyne Isco dealer for warranty service.
The warrantor is Teledyne Isco, 4700 Superior, Lincoln, NE 68504, U.S.A. * This warranty applies to the USA and countries where Teledyne Isco does not have an authorized dealer. Customers in countries outside the USA, where Teledyne Isco has an authorized de aler, should contact their Teledyne Isco dealer for warranty service.
Immersive Adventure Tourism is about building up to the adventure activity with soft immersion in the natural and culture assets that make a place distinct from any other. The aging population is a big driver of this trend. 2/3 rd’s Of travellers cite adventure 42% costs, on avg. are spent directly in activities as the focus of their holidays, the lions share of which are “soft .
