RE: Aero .35 Does anyone remember it?
Here are the whole information about Aero .35 : http://www.modelenginenews.org/cardfile/aero35.html Really the engine are heavier and longer engine than common model engines in same engine size, the plane need tailheavy to have the Aero .35 to get right C.O.G. (balance).. RCV engine are more compact in length since the sleeve are used as rotating part to drive the propeller. Do not affect so much in C.O.G. in the plane compared with other engines in same plane. [;)]
Posted on: 11/15/2009 3:17 AM by Author "Motorboy" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9254677

RE: What's in Davis Diesel Development Fuel?
Bob Davis will never tell what it is in the fuel, it is his secret formula who make model diesel engines are running so well..[:o]
Posted on: 11/14/2009 8:50 AM by Author "Motorboy" in the forum "Everything Diesel"
http://www.rcuniverse.com/forum/fb.asp?m=9252854

RE: Aero .35 Does anyone remember it?
[quote]ORIGINAL: Dan Vincent The Russians made some larger ones, I think .60 size that were ideal for turbo-prop scale models. [/quote] The engine was a Krasmorutsky Kamarenko 60 , it has a bevel gear and the cylinder was back mounted in line with crankshaft. See the pic..
Posted on: 11/14/2009 1:27 AM by Author "Motorboy" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9252564

RE: Dieselized, TD .010
[quote]ORIGINAL: gkamysz Jens, I saw your helical gear cutting clip on youtube. Very impressive.How did you make the cam for attachment? It looks like flat plate rolled to fit. Which engine are you building? Feeney perhaps? [/quote] Hi Greg, here are the pic of the helical gear and how the angle are measured before i maked the rolled angle plate on indexing head. The steel drum with rolled angle plate are rolling around the center shaft in the indexing head, locked with locking screw and gearwheel as indexing disk. The ball bearing are fixed to milling machine. The gear cutting wheel are selected by the formula: Selected number of tooth on helical gear/Cos3=number of tooth on gear cutter. Also there are not same tooth profile in a helical gear as in a spur gear for same number of tooth. http://www.youtube.com/watch?v=HcG9Eoyf9aI http://www.youtube.com/watch?v=XBhzBmErbjY The helical gear are to a stationary gas engine. [:D]
Posted on: 10/30/2009 4:01 PM by Author "Motorboy" in the forum "Everything Diesel"
http://www.rcuniverse.com/forum/fb.asp?m=9215579

RE: OS .25 VF ABC liner damaged
[quote]ORIGINAL: gsalort1978 I have al old but ''hot'' OS .25 VF abc and the crome of the cylinder is damaged. [/quote] Gabriel, sorry to tell you, the "ABC" in OS engines are not a real ABC cylinder/piston. The coating are nickel and will peel of the brass cylinder. It is a worth to try the cylinder/piston set from GMS engine, but be careful to use Dremel if you are not skilled to handle the tool careful. Better to use needle file or diamond needle file to file away the cylinder material to adjust more precise size of ports. Measure carefully - it's easier to remove metal than to put it back
Posted on: 10/30/2009 3:19 PM by Author "Motorboy" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9215500

RE: Dieselized, TD .010
[quote]ORIGINAL: AndyW Well, I do have a lathe and I guess I could try. I've heard that there is a bolt grade that works well for cranks. [/quote] Be sure all surface are well polished to prevent galling.. [quote]The .010 as it is on glow needs a bit of coaxing to get the cylinder up to temp and run smoothly at times. On diesel I wonder if you might end up with excessive cooling once running? [/quote] Although the volume is so small, so the engine could go. See at the Nano model engine has 0,1 cc/0.0061 cubic inch cylinder volume, the bore are 5 mm, stroke 5 mm. The engine are reving up to 40 000 rpm [X(] [quote]Did the piston cylinder set hold pressure for any length of time when brought up to TDC?[/quote] The piston/cylinder fit are critical for smaller engines.. I will prefer a tapered cylinder instead a parallel cylinder. Mostly Cox engines are parallel since the cylinder/piston are made of steel. When the engine are well used as a glowplug engine, the fit can be more loose and will not keep compression in longer time hence the engine are unuseful as a diesel engine. Edit: wrong text..
Posted on: 10/27/2009 3:04 PM by Author "Motorboy" in the forum "Everything Diesel"
http://www.rcuniverse.com/forum/fb.asp?m=9206141

RE: Dieselized, TD .010
Do you acces to a lathe? It will be easier to make own crankshaft of high tensile steel.. Do not harden the crankshaft, it will make the crankshaft brittle..
Posted on: 10/27/2009 2:00 AM by Author "Motorboy" in the forum "Everything Diesel"
http://www.rcuniverse.com/forum/fb.asp?m=9205129

RE: help with prop sizes
[quote]ORIGINAL: joepage2008x2 Hi, thanks for the link to the program but my computer will not install it, is there any other software that you know of that does the same. thanks [/quote] Or use Excel Spreadsheet calculator for engine power and prop rpm power calculations, go to this link: http://mvvs.nl/utilities.htm [;)]
Posted on: 10/26/2009 1:11 AM by Author "Motorboy" in the forum "Everything Diesel"
http://www.rcuniverse.com/forum/fb.asp?m=9202351

RE: help with prop sizes
Hi, use this programme ThrustHP V 2.0d to learn out which propeller will give most thrust or Hp in measured rpm and the propeller are selected.. [sm=thumbup.gif] The link: http://www.hoppenbrouwer-home.nl/ikarus/software/thrusthpv20d.htm
Posted on: 10/25/2009 7:25 PM by Author "Motorboy" in the forum "Everything Diesel"
http://www.rcuniverse.com/forum/fb.asp?m=9201441

RE: Glowplug starter with 12V input ???
[quote]ORIGINAL: Kostas1 What's the deal with the cylindrical GLOW HEAT switch? [/quote] It is to regulate the power to glowplug depent on ampere range cause by resistant in glow plug filament. The normal ampere are between 2,5 and 3 ampere for a glowplug. [sm=thumbup.gif]If the glowplug are wet by fuel, regulate a bit higher than normal power to burn away fuel in glowplug and back again to normal power, then the engine are ready to restart..
Posted on: 10/25/2009 3:35 AM by Author "Motorboy" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9200021

RE: Cant hold idle on O.S. surpass 4 stroke
[quote]ORIGINAL: Bugalooob I bought this engine used and it just won't hold idle with the glow plug driver removed,[b] it sputter and quits...[/b] Dave [/quote] Your engine are running too rich in idling. Lean out a bit in idling mixture needle and take a pich test at fuel hose, if the engine are running then increasing in idling rpm = too rich fuelmix and if the engine are stopping without increasing rpm while pinching the fuel hose, too lean fuelmix. The important thing: The engine must have good compression to keep idling running..
Posted on: 10/24/2009 6:28 PM by Author "Motorboy" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9199060

RE: Can any one help us re a Saito 180 that is not getting any oil to the cam shaft
Add oil in the gear/cam shaft and rocker before use. There are problem not solvent by Saito Mfg...[:o]
Posted on: 10/24/2009 6:01 AM by Author "Motorboy" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9197879

RE: Microsens glow question
Tried to use a extra glowplug as a compensation Resistor?
Posted on: 10/16/2009 3:02 PM by Author "Motorboy" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9178369

RE: ENYA .15 Diesel MK-II R/C
[quote]ORIGINAL: Dan Vincent Has anyone used a .15D with the carb? [/quote] I has same engine as you, nice to trottling the engine. Never trouble with carburator. :) See the engine upper to right side..
Posted on: 10/15/2009 12:51 PM by Author "Motorboy" in the forum "Everything Diesel"
http://www.rcuniverse.com/forum/fb.asp?m=9175394

RE: UC engines
In case you has acess to a lathe, you can make venturi and spraybar/main needle, then remove the R/C carburator and mount the ready made venturi and spraybar/main needle. [quote]The last time I flew a control line model was in the 50's and there were no rc engines that I ever saw. My dad would fly what he could get started. [/quote] Walther.. The old UC can not be compared with the modern engine who are converted to a UC engine, also the modern engines are more powerful. [;)]
Posted on: 10/11/2009 5:58 PM by Author "Motorboy" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9164472

RE: best prop, tuned pipe and glow plug for OS .25 VF
Since the engine are old, see after the nickel layer are peeled of the liner.
Posted on: 10/8/2009 5:44 PM by Author "Motorboy" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9157155

RE: os engines
[quote]ORIGINAL: proptop Ya'll ready for a flashback!?[:D][8|] http://www.rcuniverse.com/forum/m_4789257/mpage_1/key_/tm.htm [/quote] The twin brother of Loughbd? [:D]
Posted on: 10/6/2009 12:44 PM by Author "Motorboy" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9151237

RE: fuel cost $$$$. needle bearings on smaller glow engines?
[quote]ORIGINAL: jimmyjames213 so if the con rod were steel, the ends where it connected to the crank/piston were significantly larger to support decent sized bearings (unlike those pics where the needle bearing looks like one off of a servo) could they last longer? would it even reduce the friction so that 5% or less oil could be used? [/quote] Needle bearing works well with syntetic oil in glowplug engines and two stroke oil in gas engines. There are a problem if the castor oil are used in the model engine with needle bearing in big end (connecting rod, some time in crankcase/crankshaft), the needle bearing are stuck of dried castor oil if stored away for next seasons to example. You can rotate the engine without you know the needle bearing in big end are stuck then the lifetime of neelde bearing are shortened for first running after long time storing. Very important to keep the engine clean for castor oil and lubricate the engine well with after-run oil to keep needle bearing free from castor oil. I has 2 OS wankel engines, there are needle bearing between excenter shaft and rotor then the engine must be removed for castor oil by alcohol (the engine added in alcohol bath) and lubricate the engine well with automatic gear oil before storing. It keep the needle bearing free for stuck and old gummed castor oil.
Posted on: 10/4/2009 4:12 AM by Author "Motorboy" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9145073

RE: fuel cost $$$$. needle bearings on smaller glow engines?
[quote]ORIGINAL: DarZeelon [color=#000066] [quote]ORIGINAL: Motorboy Convert to diesel engine and save 50% fuel consumption.. [/quote] Jens, The amount will be half, but the cost per gallon is more than double... It is more expensive to run a model Diesel engine, despite its minuscule fuel-consumption. [/color] [/quote] It depends on you are buying ready-mixed fuel or you are mixing own. The last
Posted on: 10/3/2009 2:18 PM by Author "Motorboy" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9143741

RE: fuel cost $$$$. needle bearings on smaller glow engines?
[quote]ORIGINAL: DarZeelon [color=#000066]JJ, If you want to save on fuel costs, converting any glow engine to spark-ignition (even retaining the bronze-bushed con-rod and running more oil to keep it alive), will reduce your fuel cost per flight to 10% of what it is on glow fuel... The power will be down a bit and the ignition system and battery weigh something too; but due to a much lower fuel consumption, a full tank of gas-based fuel will weigh just 40% of a full tank of glow fuel. This will partly, or even fully offset the system weight penalty.[/color] [/quote] Convert to diesel engine and save 50% fuelconsumption.. See this link: http://www.davisdieseldevelopment.com/
Posted on: 10/3/2009 5:04 AM by Author "Motorboy" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9142905

RE: os engines
[quote]ORIGINAL: jimmyjames213 ....aparently chrome is [b][color=#CC0000]''bad for the enviroment''[/color] [/b]so thats os's excuse for not useing it, but i think its just cheaper to use nickle. i may be wrong, but thats what im guessing os is prob asumbing that we will plant our engines before we ever wear them out so why chrome them? [/quote] Can you explain why OS Engines Mfg. Co., Ltd uses chromed sleeve in the model car engines, but not in model airplane engines???????
Posted on: 10/1/2009 12:47 AM by Author "Motorboy" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9137727

RE: os engines
[quote]ORIGINAL: rcdude NOoooooooooo!!! The OS super secret squirrel ABL technology plating cannot peel, well that is what they claim anyway............ [/quote] ABL can stay for Allways been leprosy, OS is not rid of problems with peeling sleeve either it is a ABN or ABL engine in our modern days..[:o]
Posted on: 9/30/2009 6:09 PM by Author "Motorboy" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9136684

RE: os engines
[quote]ORIGINAL: landeck [quote]As motorman said, it has been here discussed liner peeling on O.S engines, ranging from SF series to FX series.... I am not sure if it has been a problem with the AX series yet... [/quote] estradajae, the SF series like the FSR series were true ABC engines. I have four OS SF series engines that I have been running for over 20 years, two in planes I am currently flying. I have four OS 46 AX engines, an OS 61 FX, an OS 55 AX and an OS 75 AX. I run with Omega 10% (which has castor oil) and have never had a problem. My guess is the peeling problem is due the the lack of castor oil in Cruel Power. While the peeling should not occur, you can lessen the already slim chances of it happening by using the manufacture's recommend fuel. Bruce [/quote] Bruce, i has OS 61 FSR ABC, the sleeve was not real ABC sleeve. Also the sleeve was ABN while the OS catalog say the engine was ABC. See the pic of peeled sleeve from OS 61 FSR ABC.. Never buy the OS engines who has ABN sleeve (False "ABC" engine), prefer chinese model engines who has true ABC from Sanye..
Posted on: 9/30/2009 4:59 PM by Author "Motorboy" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9136529

RE: COMPRESSION QUESTION
[quote]ORIGINAL: tony0707 HI MOTORBOY- i do have to disagree with you ABC engines -DO NOT HAVE THE SAME COMPRESSION IN BOTH DIRECTIONSand the cylinder walls are smoothno scratches or scuffs-more compression turning backwards 98 % of the time from my experience -other stuff might happen 2 % of the timebut not the majority of the time [/quote] Answer are no. The compression will be same in both way
Posted on: 9/27/2009 6:02 PM by Author "Motorboy" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9127955

RE: COMPRESSION QUESTION
[quote]ORIGINAL: tony0707 HI all the talk about ringed engines is still not the answerfor as i said ABC engines do the same thing -more compression when turned backwardsthere is no ring in them [/quote] It will not happen in a ringless engine. It shall be the same compression in both directions when you are rotating the engine by hand. Check your engine in case your engine are not in good contidion.. There may be scratches in the piston or flake coating in the sleeve (mostly in ABN sleeve), the piston or sleeve are not circular damaged (very rare).
Posted on: 9/27/2009 2:03 AM by Author "Motorboy" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9126676

RE: COMPRESSION QUESTION
[quote]ORIGINAL: MILDBILL-RCU Hey Tony, I hope this crude drawing helps you understand the question you had. All the answers so far are also correct. W8ye had the reason I think you were looking for. I think the greatest ''feel'' of the compression difference is from the pistons running clearance & its changing sides from the engine being rotated by the crank. (or prop) While the engine is running however, it is the piston that moves the crank in the power stroke. In the right hand drawing, the force of the piston tranfered to the rod will cause the piston to the intake port side of the wall & will help to seal the ring gap better while running. As far as a right or wrong way to install on a 4-stroke, It might help to put the gap on that side of the piston. But I have seen some rings rotate within the cylinder depending how tight of a fit they are. So it really wont matter in those case's. The gap is so small & the speed of the piston is so great, that while running, there is not much time for much leakage to take place. In a perfect fit, (no gap) there would not be any room for heat expansion & the trouble that would cause would be bad. Also, in a 4-stroke, it is through this gap that the engine will get its lubricating oil. They tend to be a little larger in gap than a 2-stoke engines ring. Hope all this helps, Bill [/quote] This you wrote applies to engines with a ring. There will be no significant difference on an engine with 2 rings since there is less leakage than the motor with a ring when the engine are rotated by hand. This is caused by the ring gap are placed in difference place in the sleeve. I have some model engine with 2 rings and loss of leakage is so small that it keeps the compression pressure longer than others model engines have only one ring. See the pic of my engine here: http://www.rcuniverse.com/forum/fb.asp?m=4985295
Posted on: 9/26/2009 6:39 PM by Author "Motorboy" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9125959

RE: COMPRESSION QUESTION
[quote]ORIGINAL: N429EM OK, I gotta ask... What is desaxe? EJ [/quote] Desaxe means the center of crankshaft are a bit off center of the line of cylinderliner. It will give a low side thrust of the piston against cylinderliner under powerstroke and difference speed of piston. See the pic..
Posted on: 9/26/2009 3:15 PM by Author "Motorboy" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9125592

RE: COMPRESSION QUESTION
[quote]ORIGINAL: Luna_Rendezvous I believe there is more compression because the cam timing is different when rotated slowly in the opposite direction, have only noticed this in 4 strokes. Mike. [/quote] Not whole correct answered.. More compression in 4 stroke engine are due by the piston goes from TDC to BDC, therefore the engine get better cylinder filling. The 2 stroke engine has poor cylinder filling than a 4 stroke engine due difficult to fill the cylinder by crankcase pressure..
Posted on: 9/26/2009 3:27 AM by Author "Motorboy" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9124855

RE: Schnuerle
A similar glyph, U with umlaut, appears in the German alphabet. It represents the umlauted form of u, which results in the same sound as the letter Ü mentioned in the previous section: [y]. The letter is collated together with U, or as UE. In languages which have adopted German names or spellings, such as Norwegian, Swedish, the letter also occurs. It is however not a part of these languages' alphabets. In Norwegian, Swedish the letter is called tysk, tyskt y which means German y. To example Üpsilon also sometimes spelt Ypsilon When not serving as the second vowel in a diphthong, it has the sound value /y/ in the Scandinavian languages and /�/ in German. Y can never be a consonant (except for loanwords), but in diphthongs, as in the name Meyer, it serves as a variant of "i". To example the German man says TÜV, we hear him say TYV .. TÜV (German pronunciation: [ˈt�f]) (short for Technischer Überwachungs-Verein, Technical Inspection Association in English) In english the alphabet ü are written as ue.. Hope it is all i has explained how to say ü same as Y in scandinavian sound.. [;)] Edit: Corrected text.
Posted on: 9/22/2009 2:33 PM by Author "Motorboy" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9115551

RE: GREEN?
I has some old diesel engines who has been stored a long time, more than 20-30 year. When i opened the back cover, i saw the old gummed castor oil was green as i know the dieselfuel are not colored as in glowplug engine fuel. I can think the green are a natural product of vegetable oil (Castor oil), maybe Chlorophyll in oil. Chlorophyll is a green pigment found in most plants, algae, and cyanobacteria.
Posted on: 9/21/2009 4:55 PM by Author "Motorboy" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9113010