U J00 Wagner KI.U'I-1 Er WI-1 11 [--J1'I liii BY THIS TIMEhalf year after first Engine Shop column appeared MAIve received nearly 100 letters readers Most questions wrote personal reply Please enclose SASE send query needs answer dozen readers asked about model fuels lubrication rust protection after-run oils Because misunderstandings seem common area model engine operation Ill explain some wet aspects model airplane engines thoroughly can oil model fuel does lot inside engines just keeping moving parts slippery forms barrier film over everything prevent corrosion wear proper lubrication metal parts will never touch film keeps separated its own thickness thickness greater maximum surface imperfections no machined surface perfectly smooth theres no way metal-to-metal wear can occur Remember point second vital function model engine lubricants cooling youve ever seen steel being machined production youll remember flood cutting oil gushed over part being shaped keeps temperature part its cutting tool uniform ensuring dimensional stability long tool life oily discharge muffler engine does similar job cooling fins outside engine conduct excess heat away inner surfaces cylinder surplus oil fuelglow diesel sparkcarries away much waste heat energy generated combustion process long trouble-free model engine life except ABC engines cool running essential Particularly high-revving competition engines lubricant-castor oildoes another very special job Castor oil does what water injection does highpowered full-scale engines helps prevent detonation normal operation fuel/oil/air mixture internal combustion engines cylinder ignites burns smoothly progressively doing delivers relatively uniform pressure descending piston maximizes efficiency minimizes stress Detonation almost instantaneous energy release generates shock waves uneven pressures hot spots within engines combustion chamber Its grossly inefficient because releases fuels energy faster piston can move response Thats reason blown holes piston crowns Consider difference between nitroglycerin dynamite Nitroglycerin ultrasensitive difficult-to-control explosive thats rarely used anymore Dynamite long standard quarrying mining tunnel boring because its reliable predictable performance merely nitroglycerin absorbed inert filler materialusually diatomaceous earth acts moderator slows smooths out terms really can apply what happens explosion release energy Castor oil performs same function model engines tiny droplets oil suspended combustible mixture top cylinder burn instead like diatomaceous earth dynamite act shock absorbers during millisecondlong explosions provide power impulses spin model engines crankshafts Castor oil much-misunderstood underrated substance Take advertising term degummed castor oil Thats like offering decaffeinated bananas Gum comes treesnot beans Castor oil does 70 Model Aviation t Racing 60s 1946 Hornet first model engine specify castor oil exclusively lubrication Castor oil miracle lubricant Sigs product medicinal castor oil Spot lubrication teflon-loaded Tetra Gun oil brought gains 600 850 rpm works well costs old-time Control Line Stunt engines become thick gummybut result heat oxidation gum oil good lubricant has something common glue Both should stick tenaciously whatever theyre applied lubricant shouldnt adhere strongly itself way adhesive must major reason castor oils use engine lubricant its almost-unique property increasing its viscosity film strength thickness its operating temperature increases Practically other oils opposite Its good thing us model fliers castor oil gets thicker tougher its exposed heat way provides excellent anti-wear protection especially hottest hardest-working section piston engine little end connecting rod erg energy transmitted piston crankshaft must go through first Thats second-hottest region inside engine toojust fraction inch away piston crown Yet its hardest lubricate because its location far up inside closed cup piston underside fuel/oil/air mix cant flow freely through make matters worse oscillating-type bearings difficult keep lubricated squeeze lubricant out under pressure rotary reciprocating bearings readily maintain oil films running instructions Cox engines have always stated guarantee void fuel owner used lacked castor oil someone returned damaged Black Widow factory service could anyone tell whether fuel contained adequate percentage castor Easy technician look upper end rod turned blue excessive heat lack castor fuel proven Only castor oil can provide tough heat-resistant lubrication Cox engines ball-jointed conrods must have survive Castor oils tenacious film-forming ability has down side too can form varnishlike coating inside outside engine interior makes greater friction between moving parts Thats reason some glow fuels contain blend castor synthetic oils castor provides tough film synthetic lube keeps things slippery exterior model engine castor often forms unattractive dark brown patina combined effects heat oxygen time affect castor oil same way Three years ago NORVEL revolutionized 1/2A high-performance modeling its powerful reasonably-priced AME 049 061 engines Now revolutionary again new 15s AAO Ceramic SeaITM Technology new motors give awesome performance never before available such low prices outperform some engines cost 2-3 times much possible Very simple Russian engineers developed new cylinder/piston technology called AAO Ceramic Seal improves fundamental combustion efficiency up 50% over ABC technology Better combustion means power lot less fuel burned NORVEL engines dont just give power give power per dollar Check out WWWNORVELCOM info call 800 665-9575 order now Engine Displacement R/C Bearing Needle Valve B15 l5cuin No Plain Bi SR lScuinYes Plain wtwt w/muff wlo muff Price Single53 oz 42 oz$6999 Single57 oz 46 oz6999 A15BB 15 cu inNoDual BB Sin9le60 oz 49 oz9999 A15BBR 15 cu inYesDual BB Twin64 oz 53 oz9999 72 Model Aviation st hobby shop Sokoff Author wishes bought Sears effective chance smooth coolremoving baked-on oil residue running German-made HB 15 RC oducing 4 New Norvel 1 s AAO Ceramic SealTM Technology castors chemical cousin linseed oil Within few days both can form virtually insoluble surface film Theres nothing particularly about having dark-brown engine model cylinder fins will still radiate heat well ever maybe better coating looks ugly modelers Some have stopped using castor-oil-lubed fuel completely no other reason keep power plants sparkling clean However can use castor oil model engines retain pristine outer appearance Immediately after days flying clean off outside engine isopropyl alcohol stiff toothbrush Some popular airplane cleaner mixtures water ammonia detergent alcohol also work fairly well removing crud collects engine exterior douse kind thing carejld Tightly seal off inlet exhaust first because cleaning fluid mixture can cause rust inside engine Alcohol alone wont water/amanonialdetergent solution will brown coating does form engine hate way looks know two solvents can remove harming anythingprovided follow directions precisely Z Best Engine Cleaner now available after having off market awhile other Sears-Roebuck product SOKOFF Two readers have asked about oils containing microscopic particles Teflon Never add lubricant fuel contains Teflon temperamres over 6000 F Teflon decomposes resultants fluorine gasthe corrosive element existence have used oils containing Teflon successfully CO2 compressed-ak motors never get hot operation Ive gained rpm spot-lubricating model engine crankshafts crankpins disassembled engines high-Teflon-content oil called Tetra Gun Oil available mail order M E Willams Ltd 7040A Bembe Beach Rd Annapolis MD 21403 Tel 410 268-4197 Most Teflon-particle oils seem contain very little Teflon look transparent sewing machine oil Tetra Gun Oil milky needs shaken thoroughly before use Its micron-size Teflon particles supposedly lodge microscopic pits valleys say model engine crankshaft provide low-friction surface enhances lubricating properties oil Tetra Gun seemed work test-ran plain-bearing Control Line engines took apart cleaned shaft its bearing thoroughly acetone paper towels After lubing surfaces well Tetra Gun working parts together several minutes give Teflon particles chance imbed metal cleaned off surplus oil reassembled engine test-ran again gained 700 rpm got similar results two other test engines Now routinely Tetra Gun-lube shaft main bearing engine work Returning topic oil model engine fuel feel minimum 25% volume weight needed maximum life maximum power during lifeexcept perhaps ABC-type engines little excess oil model engine fuel doesnt detract its power content quantity combustible vapor methanol gasoline ether whatever available cylinder controlled needle valve throttle settings oil percentage Closing Tip Whenever see model engine looks like just what need will need soon buy its still available Ive missed out myself often like remember model power plants wanted badly Ill get next month Id promise myself next month came around really like 90 days engine wanted off market Companies go out business warning G-Mark HB did after owners died discontinue models Cox did its Medallion line Thats advise see model engine particularly want own buy quickly can
Edition: Model Aviation - 1998/03
Page Numbers: 70, 72, 73
Edition: Model Aviation - 1998/03
Page Numbers: 70, 72, 73
U J00 Wagner KI.U'I-1 Er WI-1 11 [--J1'I liii BY THIS TIMEhalf year after first Engine Shop column appeared MAIve received nearly 100 letters readers Most questions wrote personal reply Please enclose SASE send query needs answer dozen readers asked about model fuels lubrication rust protection after-run oils Because misunderstandings seem common area model engine operation Ill explain some wet aspects model airplane engines thoroughly can oil model fuel does lot inside engines just keeping moving parts slippery forms barrier film over everything prevent corrosion wear proper lubrication metal parts will never touch film keeps separated its own thickness thickness greater maximum surface imperfections no machined surface perfectly smooth theres no way metal-to-metal wear can occur Remember point second vital function model engine lubricants cooling youve ever seen steel being machined production youll remember flood cutting oil gushed over part being shaped keeps temperature part its cutting tool uniform ensuring dimensional stability long tool life oily discharge muffler engine does similar job cooling fins outside engine conduct excess heat away inner surfaces cylinder surplus oil fuelglow diesel sparkcarries away much waste heat energy generated combustion process long trouble-free model engine life except ABC engines cool running essential Particularly high-revving competition engines lubricant-castor oildoes another very special job Castor oil does what water injection does highpowered full-scale engines helps prevent detonation normal operation fuel/oil/air mixture internal combustion engines cylinder ignites burns smoothly progressively doing delivers relatively uniform pressure descending piston maximizes efficiency minimizes stress Detonation almost instantaneous energy release generates shock waves uneven pressures hot spots within engines combustion chamber Its grossly inefficient because releases fuels energy faster piston can move response Thats reason blown holes piston crowns Consider difference between nitroglycerin dynamite Nitroglycerin ultrasensitive difficult-to-control explosive thats rarely used anymore Dynamite long standard quarrying mining tunnel boring because its reliable predictable performance merely nitroglycerin absorbed inert filler materialusually diatomaceous earth acts moderator slows smooths out terms really can apply what happens explosion release energy Castor oil performs same function model engines tiny droplets oil suspended combustible mixture top cylinder burn instead like diatomaceous earth dynamite act shock absorbers during millisecondlong explosions provide power impulses spin model engines crankshafts Castor oil much-misunderstood underrated substance Take advertising term degummed castor oil Thats like offering decaffeinated bananas Gum comes treesnot beans Castor oil does 70 Model Aviation t Racing 60s 1946 Hornet first model engine specify castor oil exclusively lubrication Castor oil miracle lubricant Sigs product medicinal castor oil Spot lubrication teflon-loaded Tetra Gun oil brought gains 600 850 rpm works well costs old-time Control Line Stunt engines become thick gummybut result heat oxidation gum oil good lubricant has something common glue Both should stick tenaciously whatever theyre applied lubricant shouldnt adhere strongly itself way adhesive must major reason castor oils use engine lubricant its almost-unique property increasing its viscosity film strength thickness its operating temperature increases Practically other oils opposite Its good thing us model fliers castor oil gets thicker tougher its exposed heat way provides excellent anti-wear protection especially hottest hardest-working section piston engine little end connecting rod erg energy transmitted piston crankshaft must go through first Thats second-hottest region inside engine toojust fraction inch away piston crown Yet its hardest lubricate because its location far up inside closed cup piston underside fuel/oil/air mix cant flow freely through make matters worse oscillating-type bearings difficult keep lubricated squeeze lubricant out under pressure rotary reciprocating bearings readily maintain oil films running instructions Cox engines have always stated guarantee void fuel owner used lacked castor oil someone returned damaged Black Widow factory service could anyone tell whether fuel contained adequate percentage castor Easy technician look upper end rod turned blue excessive heat lack castor fuel proven Only castor oil can provide tough heat-resistant lubrication Cox engines ball-jointed conrods must have survive Castor oils tenacious film-forming ability has down side too can form varnishlike coating inside outside engine interior makes greater friction between moving parts Thats reason some glow fuels contain blend castor synthetic oils castor provides tough film synthetic lube keeps things slippery exterior model engine castor often forms unattractive dark brown patina combined effects heat oxygen time affect castor oil same way Three years ago NORVEL revolutionized 1/2A high-performance modeling its powerful reasonably-priced AME 049 061 engines Now revolutionary again new 15s AAO Ceramic SeaITM Technology new motors give awesome performance never before available such low prices outperform some engines cost 2-3 times much possible Very simple Russian engineers developed new cylinder/piston technology called AAO Ceramic Seal improves fundamental combustion efficiency up 50% over ABC technology Better combustion means power lot less fuel burned NORVEL engines dont just give power give power per dollar Check out WWWNORVELCOM info call 800 665-9575 order now Engine Displacement R/C Bearing Needle Valve B15 l5cuin No Plain Bi SR lScuinYes Plain wtwt w/muff wlo muff Price Single53 oz 42 oz$6999 Single57 oz 46 oz6999 A15BB 15 cu inNoDual BB Sin9le60 oz 49 oz9999 A15BBR 15 cu inYesDual BB Twin64 oz 53 oz9999 72 Model Aviation st hobby shop Sokoff Author wishes bought Sears effective chance smooth coolremoving baked-on oil residue running German-made HB 15 RC oducing 4 New Norvel 1 s AAO Ceramic SealTM Technology castors chemical cousin linseed oil Within few days both can form virtually insoluble surface film Theres nothing particularly about having dark-brown engine model cylinder fins will still radiate heat well ever maybe better coating looks ugly modelers Some have stopped using castor-oil-lubed fuel completely no other reason keep power plants sparkling clean However can use castor oil model engines retain pristine outer appearance Immediately after days flying clean off outside engine isopropyl alcohol stiff toothbrush Some popular airplane cleaner mixtures water ammonia detergent alcohol also work fairly well removing crud collects engine exterior douse kind thing carejld Tightly seal off inlet exhaust first because cleaning fluid mixture can cause rust inside engine Alcohol alone wont water/amanonialdetergent solution will brown coating does form engine hate way looks know two solvents can remove harming anythingprovided follow directions precisely Z Best Engine Cleaner now available after having off market awhile other Sears-Roebuck product SOKOFF Two readers have asked about oils containing microscopic particles Teflon Never add lubricant fuel contains Teflon temperamres over 6000 F Teflon decomposes resultants fluorine gasthe corrosive element existence have used oils containing Teflon successfully CO2 compressed-ak motors never get hot operation Ive gained rpm spot-lubricating model engine crankshafts crankpins disassembled engines high-Teflon-content oil called Tetra Gun Oil available mail order M E Willams Ltd 7040A Bembe Beach Rd Annapolis MD 21403 Tel 410 268-4197 Most Teflon-particle oils seem contain very little Teflon look transparent sewing machine oil Tetra Gun Oil milky needs shaken thoroughly before use Its micron-size Teflon particles supposedly lodge microscopic pits valleys say model engine crankshaft provide low-friction surface enhances lubricating properties oil Tetra Gun seemed work test-ran plain-bearing Control Line engines took apart cleaned shaft its bearing thoroughly acetone paper towels After lubing surfaces well Tetra Gun working parts together several minutes give Teflon particles chance imbed metal cleaned off surplus oil reassembled engine test-ran again gained 700 rpm got similar results two other test engines Now routinely Tetra Gun-lube shaft main bearing engine work Returning topic oil model engine fuel feel minimum 25% volume weight needed maximum life maximum power during lifeexcept perhaps ABC-type engines little excess oil model engine fuel doesnt detract its power content quantity combustible vapor methanol gasoline ether whatever available cylinder controlled needle valve throttle settings oil percentage Closing Tip Whenever see model engine looks like just what need will need soon buy its still available Ive missed out myself often like remember model power plants wanted badly Ill get next month Id promise myself next month came around really like 90 days engine wanted off market Companies go out business warning G-Mark HB did after owners died discontinue models Cox did its Medallion line Thats advise see model engine particularly want own buy quickly can
Edition: Model Aviation - 1998/03
Page Numbers: 70, 72, 73
U J00 Wagner KI.U'I-1 Er WI-1 11 [--J1'I liii BY THIS TIMEhalf year after first Engine Shop column appeared MAIve received nearly 100 letters readers Most questions wrote personal reply Please enclose SASE send query needs answer dozen readers asked about model fuels lubrication rust protection after-run oils Because misunderstandings seem common area model engine operation Ill explain some wet aspects model airplane engines thoroughly can oil model fuel does lot inside engines just keeping moving parts slippery forms barrier film over everything prevent corrosion wear proper lubrication metal parts will never touch film keeps separated its own thickness thickness greater maximum surface imperfections no machined surface perfectly smooth theres no way metal-to-metal wear can occur Remember point second vital function model engine lubricants cooling youve ever seen steel being machined production youll remember flood cutting oil gushed over part being shaped keeps temperature part its cutting tool uniform ensuring dimensional stability long tool life oily discharge muffler engine does similar job cooling fins outside engine conduct excess heat away inner surfaces cylinder surplus oil fuelglow diesel sparkcarries away much waste heat energy generated combustion process long trouble-free model engine life except ABC engines cool running essential Particularly high-revving competition engines lubricant-castor oildoes another very special job Castor oil does what water injection does highpowered full-scale engines helps prevent detonation normal operation fuel/oil/air mixture internal combustion engines cylinder ignites burns smoothly progressively doing delivers relatively uniform pressure descending piston maximizes efficiency minimizes stress Detonation almost instantaneous energy release generates shock waves uneven pressures hot spots within engines combustion chamber Its grossly inefficient because releases fuels energy faster piston can move response Thats reason blown holes piston crowns Consider difference between nitroglycerin dynamite Nitroglycerin ultrasensitive difficult-to-control explosive thats rarely used anymore Dynamite long standard quarrying mining tunnel boring because its reliable predictable performance merely nitroglycerin absorbed inert filler materialusually diatomaceous earth acts moderator slows smooths out terms really can apply what happens explosion release energy Castor oil performs same function model engines tiny droplets oil suspended combustible mixture top cylinder burn instead like diatomaceous earth dynamite act shock absorbers during millisecondlong explosions provide power impulses spin model engines crankshafts Castor oil much-misunderstood underrated substance Take advertising term degummed castor oil Thats like offering decaffeinated bananas Gum comes treesnot beans Castor oil does 70 Model Aviation t Racing 60s 1946 Hornet first model engine specify castor oil exclusively lubrication Castor oil miracle lubricant Sigs product medicinal castor oil Spot lubrication teflon-loaded Tetra Gun oil brought gains 600 850 rpm works well costs old-time Control Line Stunt engines become thick gummybut result heat oxidation gum oil good lubricant has something common glue Both should stick tenaciously whatever theyre applied lubricant shouldnt adhere strongly itself way adhesive must major reason castor oils use engine lubricant its almost-unique property increasing its viscosity film strength thickness its operating temperature increases Practically other oils opposite Its good thing us model fliers castor oil gets thicker tougher its exposed heat way provides excellent anti-wear protection especially hottest hardest-working section piston engine little end connecting rod erg energy transmitted piston crankshaft must go through first Thats second-hottest region inside engine toojust fraction inch away piston crown Yet its hardest lubricate because its location far up inside closed cup piston underside fuel/oil/air mix cant flow freely through make matters worse oscillating-type bearings difficult keep lubricated squeeze lubricant out under pressure rotary reciprocating bearings readily maintain oil films running instructions Cox engines have always stated guarantee void fuel owner used lacked castor oil someone returned damaged Black Widow factory service could anyone tell whether fuel contained adequate percentage castor Easy technician look upper end rod turned blue excessive heat lack castor fuel proven Only castor oil can provide tough heat-resistant lubrication Cox engines ball-jointed conrods must have survive Castor oils tenacious film-forming ability has down side too can form varnishlike coating inside outside engine interior makes greater friction between moving parts Thats reason some glow fuels contain blend castor synthetic oils castor provides tough film synthetic lube keeps things slippery exterior model engine castor often forms unattractive dark brown patina combined effects heat oxygen time affect castor oil same way Three years ago NORVEL revolutionized 1/2A high-performance modeling its powerful reasonably-priced AME 049 061 engines Now revolutionary again new 15s AAO Ceramic SeaITM Technology new motors give awesome performance never before available such low prices outperform some engines cost 2-3 times much possible Very simple Russian engineers developed new cylinder/piston technology called AAO Ceramic Seal improves fundamental combustion efficiency up 50% over ABC technology Better combustion means power lot less fuel burned NORVEL engines dont just give power give power per dollar Check out WWWNORVELCOM info call 800 665-9575 order now Engine Displacement R/C Bearing Needle Valve B15 l5cuin No Plain Bi SR lScuinYes Plain wtwt w/muff wlo muff Price Single53 oz 42 oz$6999 Single57 oz 46 oz6999 A15BB 15 cu inNoDual BB Sin9le60 oz 49 oz9999 A15BBR 15 cu inYesDual BB Twin64 oz 53 oz9999 72 Model Aviation st hobby shop Sokoff Author wishes bought Sears effective chance smooth coolremoving baked-on oil residue running German-made HB 15 RC oducing 4 New Norvel 1 s AAO Ceramic SealTM Technology castors chemical cousin linseed oil Within few days both can form virtually insoluble surface film Theres nothing particularly about having dark-brown engine model cylinder fins will still radiate heat well ever maybe better coating looks ugly modelers Some have stopped using castor-oil-lubed fuel completely no other reason keep power plants sparkling clean However can use castor oil model engines retain pristine outer appearance Immediately after days flying clean off outside engine isopropyl alcohol stiff toothbrush Some popular airplane cleaner mixtures water ammonia detergent alcohol also work fairly well removing crud collects engine exterior douse kind thing carejld Tightly seal off inlet exhaust first because cleaning fluid mixture can cause rust inside engine Alcohol alone wont water/amanonialdetergent solution will brown coating does form engine hate way looks know two solvents can remove harming anythingprovided follow directions precisely Z Best Engine Cleaner now available after having off market awhile other Sears-Roebuck product SOKOFF Two readers have asked about oils containing microscopic particles Teflon Never add lubricant fuel contains Teflon temperamres over 6000 F Teflon decomposes resultants fluorine gasthe corrosive element existence have used oils containing Teflon successfully CO2 compressed-ak motors never get hot operation Ive gained rpm spot-lubricating model engine crankshafts crankpins disassembled engines high-Teflon-content oil called Tetra Gun Oil available mail order M E Willams Ltd 7040A Bembe Beach Rd Annapolis MD 21403 Tel 410 268-4197 Most Teflon-particle oils seem contain very little Teflon look transparent sewing machine oil Tetra Gun Oil milky needs shaken thoroughly before use Its micron-size Teflon particles supposedly lodge microscopic pits valleys say model engine crankshaft provide low-friction surface enhances lubricating properties oil Tetra Gun seemed work test-ran plain-bearing Control Line engines took apart cleaned shaft its bearing thoroughly acetone paper towels After lubing surfaces well Tetra Gun working parts together several minutes give Teflon particles chance imbed metal cleaned off surplus oil reassembled engine test-ran again gained 700 rpm got similar results two other test engines Now routinely Tetra Gun-lube shaft main bearing engine work Returning topic oil model engine fuel feel minimum 25% volume weight needed maximum life maximum power during lifeexcept perhaps ABC-type engines little excess oil model engine fuel doesnt detract its power content quantity combustible vapor methanol gasoline ether whatever available cylinder controlled needle valve throttle settings oil percentage Closing Tip Whenever see model engine looks like just what need will need soon buy its still available Ive missed out myself often like remember model power plants wanted badly Ill get next month Id promise myself next month came around really like 90 days engine wanted off market Companies go out business warning G-Mark HB did after owners died discontinue models Cox did its Medallion line Thats advise see model engine particularly want own buy quickly can
