From: John McKenzie on 4 Dec 2007 02:31 Yvan(a)office wrote: > > Nedavno Noddy napisa: > > > As I mentioned earlier, it doesn't get as cold here in sunny old > > Melbourne > > What are the usual low winter temperatures in Melbourne (not the short > extremes that last for a couple of days)? I've lived in or around Melbourne for most of my life - it's snowed 3 times in 35 years that I can remember. Only a few 0s overnight in middle of winter. In summer - we get usually 4-5 days with a peak of 44-45C, and generally around 30C for most of summer. And this is one of the colder areas of the country (except the Island of Tasmania to our south) -- John McKenzie tosspam(a)aol.com abuse(a)yahoo.com abuse(a)hotmail.com abuse(a)earthlink.com abuse(a)aol.com vice.president(a)whitehouse.gov president(a)whitehouse.gov sweep.day(a)accc.gov.au uce(a)ftc.gov admin(a)loopback abuse(a)iprimus.com.au $LOGIN(a)localhost world's #1 sardine whisperer root(a)mailloop.com $USER@$HOST $LOGNAME(a)localhost -h1024(a)localhost abuse(a)msn.com abuse(a)federalpolice.gov.au fraudinfo(a)psinet.com abuse(a)asio.gov.au $USER(a)localhost abuse(a)sprint.com abuse(a)fbi.gov abuse(a)cia.gov
From: feral on 4 Dec 2007 15:30 Athol wrote: > Religion is a substitute for common sense, morals, decency and all the > other things that people should inherently have but many don't... > I like that, can I use it pls? Seeing as how it doesn't fit you. :-P -- Take Care. ~~ Feral Al ( @..@) (\- :-P -/) ((.>__oo__<.)) ^^^ % ^^^
From: Yvan on 5 Dec 2007 02:39 Nedavno John McKenzie napisa: > > >> I just did some testing (nice sunny weather today :-). I drilled > > >> small hole near the top of the carburetor with a thread in it, > > >> and used a bolt to fix choke plate in opened position. I can now > > >> start and run on lpg from cold with spud pipes setup. I will > > >> have to test this again tomorrow morning, it was warm outside > > >> today. > > > > > > Well done. > > > > Not actually :-( It was relatively warm yesterday, and the engine > > did not cool completely. This morning choke block did not make any > > difference. I could not start the engine, and it would not idle > > until it warmed up almost to the normal operating temperature. But > > not to worry, amos ring is at final stages of design, I just need > > to fabricate it :-) Reading all this again I decided to test what I learned on my old Pierburg. As I understand you do not need any sort of cold start device on lpg cold start. So I blocked choke flap open, and blocked piston (part number 73 on the photo) closed. I blocked it closed because it should close when coolant temperature reaches 70 degrees Celsius. That should disable cold start. http://www.ptt.yu/korisnici/i/v/ivica/lpg/1B2.jpg For this carburetor I have what I believe is the right lpg mixer plate. It sits in filter box on top of the carburetor, as you suggested I should fabricate for my new carb: http://www.ptt.yu/korisnici/i/v/ivica/lpg/mixerplate.jpg Result is that I can now start on lpg, but it needs some 5 min ow warm up before it will run at idle. Much better than before, but not there yet. Idle adjustment screw is plugged with tamper-proof plug, I unplugged it and adjusted idle (at engine running at normal operating temp). It was low. How to adjust it further, so it will run at idle after a cold start? I have this idle adjustment screw, idle air adjustment screw, and mixture adjustment screw (that I think is for petrol only, nothing to do with lpg). Idle air adjustment screw and mixture adjustment screw are also shown on the photo. And, I almost forgot idle mixture screw on the vaporizer (converter). -- ___ ____ /__/ / \ ** Registrovani korisnik Linuksa #291606 ** / / \/ /\ \ ** Registered Linux user #291606 ** /__/\____/--\__\ ** http://counter.li.org/ ** -- ___ ____ /__/ / \ ** Registrovani korisnik Linuksa #291606 ** / / \/ /\ \ ** Registered Linux user #291606 ** /__/\____/--\__\ ** http://counter.li.org/ **
From: Noddy on 5 Dec 2007 07:40 "Yvan(a)office" <me(a)privacy.net> wrote in message news:20071205083922.08b18b78(a)informatika.21oktobar.com... > Idle adjustment screw is plugged with tamper-proof plug, I unplugged it > and adjusted idle (at engine running at normal operating temp). It was > low. Are you sure it was the idle speed adjusting screw, or the idle *mixture* adjusting screw? On the image you provided I can see what looks to be an idle mixture adjusting screw (which looks like it would have been capped with a tamper proof plug in the picture), but I can't see an idle speed adjusting screw as the throttle linkage portion of the carb is not shown. > How to adjust it further, so it will run at idle after a cold start? > > I have this idle adjustment screw, idle air adjustment screw, and > mixture adjustment screw (that I think is for petrol only, nothing to > do with lpg). Idle air adjustment screw and mixture adjustment screw > are also shown on the photo. And, I almost forgot idle mixture screw on > the vaporizer (converter). So, the idle is adjusted by an air bleed screw and not on the throttle lever? Have a look at the side of the carb where the throttle cable or linkage attaches to the carburettor, and see if there is an adjustment screw somewhere on either the carburettor body or the throttle cable/linkage lever itself that will allow you to adjust the idle by changing the position of the throttle plate. If there isn't, then my advice would be to get the idle running satisfactorily on petrol and then adjusting the idle quality with the idle mixture screw on the converter (which you'll no doubt have to do anyway). -- Regards, Noddy.
From: Yvan on 5 Dec 2007 10:43
Nedavno Noddy piše: >> Idle adjustment screw is plugged with tamper-proof plug, I unplugged >> it and adjusted idle (at engine running at normal operating temp). It >> was low. > > Are you sure it was the idle speed adjusting screw, or the idle > *mixture* adjusting screw? Yes I am. Here is another drawing: http://www.ptt.yu/korisnici/i/v/ivica/lpg/1B2-2.jpg > So, the idle is adjusted by an air bleed screw and not on the throttle > lever? Pierburg 1B2 has fully automatic choke. It does not have stepped cam, instead it has coolant heated device (waxstat) (number 75 on the drawing at the link above), and electrically heated one (82). Choke flap is electrically operated. As temperature rises wax expands, and pushes piston (73) that closes path to the air-fuel mixture that bypasses throttle butterfly. It seems that this waxstat and part no 82 are not functioning as they should (dealership refused to fix it as I did lpg conversion, and my complain to BMW had no effect). And it's to expensive to just purchase this two parts just to try if it will fix my cold start problem). So I figured if lpg does not need any cold start device, I could block this opening (so no air bypasses butterfly) - and that way I get simple carburetor without cold start device. I also blocked open choke flap. Idle adjustment screw exist (8) but it was blocked with a tamperproof plug. Carburetor manual states that it's adjusted in factory, and should be left as is (and for some 20 years it was OK). So you should only adjust air bleed and mixture. But I figured, since I blocked air bypass I should slightly increase butterfly angle to let more air in, and raise idle rpm. As you can see this 1B2 is very complex carburetor compared to Weber 32 ADF that I am fitting now. But since I already had mixer for 1B2 I wanted to test if it will run without cold start device. And yes, it runs well on petrol (when the engine is warmed up). -- ___ ____ /__/ / \ ** Registrovani korisnik Linuksa #291606 ** / / \/ /\ \ ** Registered Linux user #291606 ** /__/\____/--\__\ ** http://counter.li.org/ ** |