Back to 70 Engine Installation Click on Index Picture to Enlarge 712000-03 Engine Mount
enginemounttemporarybolttocasealignstraightedgeacrossmountpads_small.jpg markmountpadwithawlcutmountpadthensmoothedges_small.jpg placemountrailangleundertheenginemountpadsperdrawing_small.jpg checkcenterofmountpadiscloseenoughtoangletrimasneeded_small.jpg tracearoundmountpadmarkandcutangletolengthtrimends_small.jpg mountrailscuttolength_small.jpg drilltheenginemountboltholesinmountrailsmarkleftandrightsides_small.jpg markflangeradiusperdrawingtrimwithbandsaw_small.jpg markradiusonendofmountrailperdrawingcutoutsidelinesandtoline_small.jpg
setdividertoheightofflangedrawarcfromendofflangetrimandsand_small.jpg roundcornerswithsandingdiskandsmoothwithscotchbritewheel_small.jpg refreshfirewallcenterlinedrawupperanglerivetlinemarkoutboardrivets_small.jpg theupperenginemountpadiscenteredontheoutboardrivet_small.jpg drilltopenginemountholesfirstdrilloutrivetsreamholetofinalsize_small.jpg engineonstoolandblockstemporarytopmountboltsslideontofirewall_small.jpg attachenginewithtemporaryupperboltsdrillbottomholesandinstallbolts_small.jpg standbackandadmiretheenginehangingontheairframe_small.jpg removeengineboltmountrailsmarkrailsevenwithatbottomrivetline_small.jpg
alignruleroncenterofrivetlinemarkboltholepositiononangleperdrawing_small.jpg drillthroughenginemountangleandfirewallattachwithtemporarybolt_small.jpg firewallpreparedtomountenginewithtemporaryhardware_small.jpg slideengineandmountontothefirewalltemporarybolts_small.jpg putnutsonboltsthentightenevenly_small.jpg withweighttohelptopushdownthetailplacesupportbehindthefirewall_small.jpg withtheengineweightupfrontthetailisnotonthestandanymore_small.jpg engineisboltedinpositionnowweneedtocheckalignmentofthethrustline_small.jpg verticalthrustlinerefreshthecenterlineontopofthenoseskin_small.jpg
thiswillbethethrustlinelookingdown_small.jpg placestraightedgeoncenterlinebuckingbarholdsitinplace_small.jpg lookingstraightdownedgeshouldbeparallelwithenginecasesplitline_small.jpg makesureyoulookstraightdownandcheckfromseveralpositions_small.jpg horizontalthrustlineclampstraightedgealignedwithfuselagesiderail_small.jpg thehorizontalthrustlineisparalleltothefuselagesiderail_small.jpg clampsquareverticalonstartergearring_small.jpg thefrontoftheengineneedstoberaisedslightlyneedspacerstodothat_small.jpg enginemountspacerlayoutonscrapmaterialthicknessasneeded_small.jpg
cutandsandtoshapedrillholeandsmoothedges_small.jpg removeoneenginemountboltatatimesupportengineforupperbolts_small.jpg placespacerunderenginemountpadandreinstallbolt_small.jpg enginecrankshaftisnowparalleltothefuselagesiderail_small.jpg andasexpecteditnowisslightlyoutoflinewiththefuselagecenterline_small.jpg wecanaddandremoveshimsofdifferentthicknessesasneeded_small.jpg keepadjustinguntilthecrankshaftisparallelwiththefuselagesiderails_small.jpg andparallelwiththefuselagecenterline_small.jpg stockcasebolttoolongtrimsothreadgoesinallthewayinstallwithloctite_small.jpg
tightenupthetemporaryboltsholdingtheenginemountinplace_small.jpg engineinpositionnextwemakethecowl_small.jpg

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