The magneto itself is internally lubricated. This is one reason for the 500/250 hour inspection. The rotor turns with two sealed and greased ball bearings. There is a great YouTube video All About Magnetos sponsored by the EAA that would be worth your time.
M On Sun, Oct 28, 2018, 12:56 PM Jarek Steliga <[email protected]> wrote: > Michael, > > If on a Lycoming or Continental engine the magneto is getting plenty of > lubrication from the accessory case, does this mean, that magneto is > getting lubrication via the impulse coupling on Limbach 2000? > > > > niedz., 28 paź 2018 o 20:37 Michael Stockhill <[email protected]> > napisał(a): > >> Jarek, >> >> Just a few drops will do it. You are lubricating the magneto impulse >> coupling. On a Lycoming or Continental aircraft engine, the magneto bolts >> into the accessory case, where it gets plenty of lubrication >> >> On Sun, Oct 28, 2018, 12:08 PM Jarek Steliga <[email protected]> >> wrote: >> >>> I realized, that the little spring loaded cap has in fact nothing to do >>> with the magneto housing itself. It only allows the lubrication of some >>> sort of power transmission shaft located between the engine power output >>> shaft (crankshaft) and the magneto itself. I poured a liberal amount of oil >>> through the opening under the spring loaded cap and it began to leak >>> somewhere down the bottom (I was unable to see from where exactly). >>> Therefore I have the following questions: >>> 1. Is there some recommended level to which this part should be filled >>> with oil, which can be controlled with a sort of 'deep stick', or is 'a few >>> squirts' the best possible guideline I can go by? >>> 2. Is the leakage which I observed a symptom of a malfunction or is the >>> surplus of oil naturally overflowing and only the required amount remains >>> in place? >>> >>> Regards >>> Jarek >>> >>> >>> >>> >>> śr., 24 paź 2018 o 22:58 Michael Stockhill <[email protected]> >>> napisał(a): >>> >>>> Jarek, >>>> A few clarifications on my earlier comments. When I mentioned engine >>>> oil, I was referring to the impulse coupling lubrication, not internal to >>>> the magneto. >>>> >>>> The Slick protocol for their 500 hour inspection is very intensive. If >>>> you were to read it and follow it, you would see that an typical field >>>> mechanic is not equipped for accomplishing same. I just confronted it on >>>> the four magnetos on my Aztec. They were 4200 series, superseded by 4300 >>>> series (as is your mag), so it was practical to just replace them with new >>>> 4300 series. Limbach/Dimona guidance does call for 250 hour inspection if I >>>> recall correctly. My observation that the magneto is direct drive and >>>> wasted spark suggests a good rationale for halving the inspection time. >>>> >>>> On Wed, Oct 24, 2018, 2:33 PM Jarek Steliga <[email protected]> >>>> wrote: >>>> >>>>> Ric, >>>>> >>>>> >>>>> When I was speaking of the 'inside' lubrication, i meant the >>>>> lubrication which can't be performed by means of squirting oil from the >>>>> top. I will now stick to your 5 to 10 hours rule regarding the impulse >>>>> coupling accessed through the spring loaded cap. As for the lubrication >>>>> (and perhaps other maintenance work) inside the magneto, I will have >>>>> someone else do it for me as suggested by Michael. >>>>> >>>>> >>>>> Michael, >>>>> >>>>> According to the current service schedule (which I received from the >>>>> former owner), the magneto needs to undergo a major inspenction every 250 >>>>> hours of engine time or 24 months (whichever comes first). This overhaul >>>>> must by definition be performed by an authorised mechanic, as it requires >>>>> issuing a kind of certificate called FORM 1 (under EASA regulations). So >>>>> that rather settles the matter. >>>>> >>>>> >>>>> I thank you both for your attention >>>>> Regards >>>>> Jarek >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> śr., 24 paź 2018 o 16:14 Michael Stockhill <[email protected]> >>>>> napisał(a): >>>>> >>>>>> Jarek, >>>>>> >>>>>> I have just used engine oil for the last 15 years. >>>>>> >>>>>> One observation. As the magneto is direct drive it fires twice as >>>>>> frequently as usual on a Lycoming. My first mag was tired at 250 hours, >>>>>> rather than the prescribed 500 hour inspection, so I suggest doing the >>>>>> inspections every 250 hours. If you were to read the inspection protocol >>>>>> you would likely decide to use a specialist as it is pretty >>>>>> comprehensive. >>>>>> >>>>>> >>>>>> On Wed, Oct 24, 2018, 6:48 AM Jarek Steliga <[email protected]> >>>>>> wrote: >>>>>> >>>>>>> Hello, >>>>>>> >>>>>>> I know that a few drops of lubricant should be added now and then >>>>>>> through a small opening covered with a hinged cup (as depicted on the >>>>>>> attached photo). Can someone advice on the following: >>>>>>> >>>>>>> 1. What kind of fluid can be used? How often? >>>>>>> 2. What kind of grease needs to be used for the inside of the >>>>>>> magneto. Can the lubrication of the inside of the magneto be perfomed >>>>>>> by a >>>>>>> mechanic or should it be done only by an authorised repair shop? How >>>>>>> often? >>>>>>> >>>>>>> Best regards >>>>>>> Jarek >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> ---------- Forwarded message --------- >>>>>>> From: [email protected] <[email protected]> >>>>>>> Date: wt., 23 paź 2018 o 20:47 >>>>>>> Subject: Magneto Slick 4330 >>>>>>> To: [email protected] <[email protected]> >>>>>>> >>>>>>> >>>>>>> Witaj >>>>>>> >>>>>>> Może napisać na forum o to co tam się dolewa >>>>>>> jaki olej do samrowania tego sprzegła do magneta >>>>>>> 1. jaki olej do tej smarowniczki ?co ile godzin >>>>>>> 2.Jakim smarem smaruje się w środku magneta czy to wykonuje zakład >>>>>>> remontowy czy zwykły mechanik?co ile godzin? >>>>>>> daje zdjęcia ! >>>>>>> >>>>>>> >>>>>>> >>>>>>> --------------------------------------------------------------------- >>>>>>> You are subscribed to the Dimona Owners Group mailing list. >>>>>>> To unsubscribe, send email to: >>>>>>> [email protected] >>>>>> >>>>>>
