Always use a mrfunnel for car fuel and never buy fuel if you see the tanker making a delivery. If fuel is doubtful or is Shell/Liberty and sitting a while add some Avgas to bring fuel back to life.
AVgas with tetra ethy lead is good once a year to check colour of plugs. Rob Thompson s thing on fuel was interesting but only australia Ian McPhee 0428847642 Box 657 Byron Bay NSW 2481 On Sat, 19 Oct. 2019, 06:36 Jarek Steliga, <[email protected]> wrote: > Hi, > > Looks like this time the problem was with the carbs. I had them thoroughly > cleaned and the motor came to life. > > Regards > Jarek > > > > On Wed, 16 Oct 2019 at 10:16, Ian Mc Phee <[email protected]> wrote: > >> Ian and Jarek >> >> I have done services around 300hrs then 600ht (I have dual ignition) >> then 900hrs but I have always had an issue hard to start. >> >> This last one I chose AIES at Moorabbin (been to two other place before) >> and each time starting was difficult. I mentioned to guyy at AIES and he >> rang and said I think I found your trouble. It is impulse but on two >> previous services I do not think the guys really looked at impulse. They >> did points and capicator and if needed the small wheel and seal (mor a >> thing for falke as impulse is oiled by engine) >> >> I now oil the mag impulse each oil change (usually 35 to 40hrs. >> >> The reason I went to AIES was a friend a LAME recommended him as he is >> specialist. Some of the other workshops just do magneto s as a sideline to >> general service. I could mention another Lame organisation that buggered up >> a slick in a Pawnee and eventually gears failed and showed metal. >> >> Thus I say find a good expert to do your magneto. >> >> For those earlier models with the master switch (bone) forward of >> firewall they can be mounted behind firewall on standouts. The rod gets >> shortened and thus more room behind firewall. A good mod if you have engine >> out as makes life easier. >> >> I hear from a friend with L2000 in a g109 new engine and has long reach >> plugs so finally Limbach have realised these heads are much better. >> >> Ian McPhee >> 0428847642 >> Box 657 Byron Bay NSW 2481 Australia >> >> >> On Tue, 15 Oct. 2019, 20:59 Jarek Steliga, <[email protected]> >> wrote: >> >>> Ian, >>> >>> Thank you so much for the very exhaustive reply. Even I am able to grasp >>> the logic behind your suggestion no 2. The stuck impulse coupling would >>> keep retarding/delaying the ignition from the required minus 30 all the way >>> to zero obviously fouling the higher revs. I am going to look into this >>> immediately. >>> >>> Best regards >>> Jarek >>> >>> >>> >>> On Mon, 14 Oct 2019 at 23:47, Ian Williams <[email protected]> wrote: >>> >>>> Hi Jarek, >>>> >>>> I hope to be of some help to you based in issues I have had in the past >>>> with Limbach 2L engines. >>>> >>>> They are a great little engine and if looked after will perform well >>>> for years. I currently “look after” ie the engineer for 3 aircraft wit >>>> hL200’s and one with an L2400. >>>> >>>> 1. Here in New Zealand we need to remove the Magneto every 2 years >>>> or 250hrs … which ever comes first and any issues with the magneto are >>>> found (usually) However sometimes not the case. The L2000 on our >>>> Dimona >>>> was ex Thai air force and the engine was not used for 20 or so years. >>>> It >>>> did around 150 hrs of trouble free running then without warning, the >>>> condenser in the Magneto broke down. Fortunately just after take off >>>> so a >>>> return landing was possible. Interestingly, it broke down less than 1 >>>> hr’s >>>> running AFTER a bench check. … so a problem COULD be a faulty >>>> condenser … >>>> though if that was the case the engine wouldn’t idle either. >>>> 2. What is possible (and has happened to me) is an issue with the >>>> impulse spring … The impulse used is a standard GA one. Usually they >>>> are internal of the engine (ie Lycoming etc) hence well oiled. The >>>> Limbach >>>> one is external and hence needs external lubrication. There is a little >>>> oil pot on top of the rear case to do that but is really quite hit and >>>> miss. We had a problem (which fits to your situation) where the spring >>>> was quite “dry” and would not release. … ie “bound up” Hence the engine >>>> would run OK at low RPM’s but no good at high. The fix was to take the >>>> magneto out (again) dismantle the impulse, give it a good clean and >>>> lubrication and reassemble .. then back on the Aircraft. The problem >>>> was >>>> solved. >>>> >>>> Just a point re advance and retard … Not a lot of point in that >>>> automatically adjusting with an engine that runs at a fairly constant RPM … >>>> the KISS principal here. >>>> >>>> However the old De Havilland Gypsy engine had a mechanical system which >>>> moved the magneto physically when the throttle was closed … for a better >>>> idle. A friend of mine put an adjusting ignition(ie replaced one magneto) >>>> system on his 150hl lycoming The idle was significantly smoother. >>>> >>>> >>>> >>>> So I think your problem is no 2 >>>> >>>> >>>> >>>> Best regards >>>> >>>> Ian Williams >>>> >>>> Drury >>>> >>>> Auckland >>>> >>>> New Zealand >>>> >>>> >>>> >>>> ZK-GCB (Dimona) >>>> >>>> ZK-GOC (Grob 109 with a 2400 Limbach) >>>> >>>> ZK-GNW (Grob 109 2000 Limbach >>>> >>>> Working on another Dimona … to be ZK-GCD (ex VH-GNW) >>>> >>>> >>>> >>>> >>>> >>>> *From:* [email protected] *On Behalf Of *Jarek Steliga >>>> *Sent:* Monday, 14 October 2019 8:40 p.m. >>>> *To:* [email protected] >>>> *Subject:* Re: [DOG mailing list] ignition advancement not affected by >>>> the RPMs >>>> >>>> >>>> >>>> Ric, Ian, >>>> >>>> >>>> >>>> Thank you very much. The idea of there being no advance seems bizarre >>>> for someone having only to do with 'terrestrial' engines :-) >>>> >>>> >>>> >>>> On Mon, 14 Oct 2019 at 08:07, Ric Sutton <[email protected]> >>>> wrote: >>>> >>>> Hi jarek >>>> >>>> Yep you are correct, there is no advance. It stays the same throughout >>>> the rev range. >>>> >>>> >>>> >>>> *From:* [email protected] [mailto:[email protected]] *On >>>> Behalf Of *Jarek Steliga >>>> *Sent:* Sunday, 13 October 2019 5:17 PM >>>> *To:* [email protected] >>>> *Subject:* [DOG mailing list] ignition advancement not affected by the >>>> RPMs >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> Hello, >>>> >>>> >>>> >>>> Can someone please confirm that once my L2000 starts with a 43 series >>>> Slick magneto mounted, the ignition advancement will stay the same (30%) >>>> throughout the whole RPMs range? In other words as I understand in this >>>> system there is no spark advance mechanism installed apart from the impulse >>>> coupling which only affects (delays/retards) the spark timing up until 400 >>>> RPMs (i.e. well before the engine kicks in). >>>> >>>> >>>> >>>> >>>> >>>> Thank you in anticipation >>>> >>>> >>>> >>>> Jarek >>>> >>>> >>>> >>>> >>>> >>>>
