t t-a rt tratr r - moss motors
Post on 31-May-2022
1 Views
Preview:
TRANSCRIPT
Part # 130-068 -1- Revised 03/13
MG Midget & Austin-Healey Sprite Alternator Conversion
Installation Instructions Sprite/Midget '61-71, Morris Minor
PART #130-068 440 Rutherford St. Goleta, CA 93117
1-800-667-7872 • FAX 805-692-2525 • www.mossmotors.com
Tools required:• Mediumflatbladescrewdriver• Mediumphillipsscrewdriver• 1/2”wrench,7/16”wrench,5/16”wrench• 9/16”socket,1/2”socket• Dead-blowhammer• Airimpactgun• 22mmsocket• Prybar• Wirecutters,wirecrimpers• Pliers• Voltmeter
Note: The vehicle must be converted to negative ground before the alternator can be installed. These instructions will outline this polarity conversion as a part of the alternator conversion.
If your vehicle is Negative Ground, move on to “Alternator Installation”
Vehicle Preparation: Positive Ground to Negative Ground Conversion
1. Disconnectthebatteryusinga1/2”wrench.
2. DisconnecttheBrown/GreenandBrown/YellowwiresfromtheGenerator.Ifthegeneratorusesringtypeconnectorsusea5/16”anda7/16”wrench.
3. Reversethepositionsofthetwowiresontheignitioncoil.Note:Ifthevehicleusesanelectronicignitionitwillhavetobereplacedwithanegativegroundelectronicignition.WerecommendMossMotors#222-405.
4. Ifanammeterorvoltmeterhasbeenfittedthepositionofthesewireswillneedtobereversed.
5. Ifthefuelpumpissolidstateitwillhavetobereplaced.WerecommendMossMotors#377-285.
6. Ifthevehicleusesamechanicaltachometermoveontothenextstep.Ifthevehicleusesanelectronictachometeritwillneedtobeconverted.Toconvertthetachometer,JohnTwistoffersthefollowingadvice:
Twochangesarenecessarytocompletelyconvertyourearlypositivegroundelectrictach:
a.) Thewiresmustbereversedatthe“whitewireloop”atthebackoftheunit,andb.)thepowerandearthconnectionsmustbereversedinsidethecase.
a.)Thewireinthe“whitewireloop”comesfromthekeyswitchandtravelstothehotsideofthecoil.Referringtotheillustrationbelow,selectoneofthewiresandtagitwithtwopiecesoftapeforidentification.Then,cutthewirebetweenthepiecesoftape,andcuttheotherwiretothesamelength.Reversetheconnections(nowthereisonepieceoftapeoneachwire)andsolderthem(remember,thisisthepowerleadforthecoilandisunfused).Tapeuptheconnectionscarefully.Whenlaterreplacingtheplasticblockonthebackofthetach,ensurethatthemetalbandaroundtheblockiscarefullypositioned.Thisisanecessarypartoftheelectromagneticpickup.
b.)Toreversethepowerwireandearthwireinsidetheunit,itisnecessarytoremovethechromering,theglassfaceandtheglareshroud.Thechromeringisusuallyremovedwithgreatdifficultybypryingthetabswithasmallscrewdriver,thenrotatinguntilthetabscanfitthroughtheslotsinthecase.Removethetwoscrewsonthebackoftheunitthatholdtheinternalstothecase(not
Installation Instructions
Part # 130-068 -2- Revised 03/13
thetwowhoseheadsfitinholesinthecase),andallowthoseinternalstodropcarefullyintoyourhand.Don’tbendtheneedle!Thespadeterminalisthepowerconnection,justnexttothisistheearthconnection.Aresistorissolderedtooneoftheseconnections,andagreenwiretotheother.Unsoldertheendsofthegreenwireandtheresistorfromtheircurrentpositions.Re-solderthegreenwiretowheretheresistorwasconnected,andtheresistortowherethegreenwirewasconnected.Reassembletheunitaftercleaningtheglass.
Illustration 6
7. Swaptheconnectorsonthebatterycablesusinga7/16”wrench.Refitthebatterysothepositivecableisattachedtothepositive(+)sideofthebattery.Leavethenegative(-)groundcabledisconnecteduntiltheinstallationiscomplete.
Alternator Installation
1. Disconnectthebatteryusinga1/2”wrench.
2. DisconnecttheBrown/GreenandBrown/YellowwiresfromtheGenerator.Ifthegeneratorusesringtypeconnectorsusea5/16”anda7/16”wrench.
3. Loosenandremovethenutandlockwasheronthepillarblockusinga9/16”sockettoallowthegeneratortorotatedownandremovethedrivebelt.(Illustration 2)
Removetheadjustmentlinkfromthegeneratorusinga1/2”socket.
Illustration 2
4. Removethepivotboltsfromthewaterpumpearandtherearmountingbracketusinga1/2”wrenchand1/2”socket.
5. Removetherearbracketfromtheblockusinga1/2”socketandreplacewiththenewbracketsuppliedinthekit(Mosspartnumber130-115)usingthesamehardware.Donottightendownthebracketyet.
Illustration 5
6. Fitthealternatorwiththefanandpulleysuppliedinthekit.Itmayhelptoseatthepulleyagainstthefanbytappingtheouteredgesevenlywithadead-blowhammer.Thewoodruffkeyhasatendencytocomeoutduringthisprocess.Applypressuretothekeywithaflatbladescrewdrivertokeepitinplacewhiletappingthepulleyon.Makesurethatthefanbladespointtowardthealternator.Wrapashopragaroundthefanandholditfirmly,butinasafemannersothatitcanbereleasedwithoutdamagetothehandorfingers.Tightenthenutwithtwobrief(1sec.max.)triggerpullsonanairimpactgunusinga22mmsocket.Checkthatthefanisnotlooseandrepeatthetighteningofthenutifnecessary.AttachtheadjustmentlinkfromthegeneratortothealternatorrespectivetoitsoriginalpositionusingtheM8x1.25x20boltandlockwasherprovided.Donottightenthisboltyet.
7. Fitthealternatortotheenginebyfirstslidingthelongslotintheadjustmentlinkoverthethreadedstudonthepillarblock.Lineupthefront-mostmountingearwiththewaterpumpmountingearandinserttheoriginalboltwithoneoftheflatwashersprovided.Lineuptherearmostmountingearwiththenewalternatorbracketandinsertthe5/16-24boltprovided.Returnthepillarblocknutandlockwashertothepillarblock.Returnthenutandwashertothefrontmountingbolt
Installation Instructions
Part # 130-068 -3- Revised 03/13
withtheaddedflatwasherbetweenthebacksideofthewaterpumpmountingearandthelockwasher.Returnthenutandlockwasherfromtheoriginalrearmountingbolttothenewmountingbolt.Leavethemountingboltssnugglytightened.Makesurethatthealternatorisatfulldroop. (See Illustration 7)
Illustration 7
Ifthewiresremovedfromthegeneratorarefittedwiththeringtypeconnectorsthenthefemalespadeconnectorswillhavetobeinstalled.Todoso,removetheringtypeconnectorswithwirecuttersandstrip1/4”ofinsulationoffofeachwire.Attachoneofthetwonon-coveredfemalespadeconnectorstotheBrown/YellowwireandasmallredspadeconnectortotheBrown/Greenwireusingwirecrimpers.Usea1”sectionoftheheatshrinkprovidedtocoverthelargerspadeconnector.
8. Fitthenewbeltbyfirstlocatingthecrankpulleywiththebottomofthebeltandthenwrappingitaroundthewaterpumppulleyandfinallywalkingthebeltontothealternatorpulley.Tightenthebeltusingashoptowelandaprybarwedgedinbetweenthealternatorandtheblock.Tightenthepillarblocknuttofixtheadjustmentlink.Thentightentheboltattachingthelinktothealternatorandthefrontmountingbolt.Nexttightentherearalternatormountingboltandthenthebracketmountingbolts.Theorderinwhichtheseboltsaretightenedisbeneficialtothefitmentofthenewmountingbracket.Checkthatthebeltdeflects3/16”-1/4”atthecenterofthebeltbetweenthewaterpumppulleyandthealternatorpulleyandadjustasneeded.
Illustration 8
9. Thefirstillustrationbelowshowsastocknegative(-)groundvehicle’swiringdiagramwiththegeneratorstillintact.Removeallthewiresfromthecontrolboxasshowinthesecondillustration.
Illustration 9
10.Plugthewiresintoyouralternatorasshown.
Illustration 10
Installation Instructions
Part # 130-068 -4- Revised 03/13
11. Completethewiringonyourvehicleusingthefollowingdiagram.Makesuretoinsulatetheconnections.Youmayremovetheregulator(generatorcontrolbox),itisnolongerneeded.
Illustration 11
12.Turnthekeytotheonpositionanddonotstartit.Checkallofthemodifiedareasandinsurethatthereisnosparkingorsmoke.Nowstartthecarbringtosteadyidle.Attachavoltmetertothebatteryterminalsandverifythatthereadingisgreaterthan13volts.RevthecarupandverifythatthevoltagereadingincreaseswithRPM.
13. Installthenegative(ground)batterycabletothenegative(-)terminalofthebattery.
14.EnjoyyournewMossalternatorconversionkit!SeeMossMotors.comforallyourpartsandaccessories.
top related