From: Yvan on 25 Nov 2007 08:41 Nedavno Noddy piše: >> the thing to be mindful here - as there is normally locally some >> criticism of that combo - it's not the amos ring thats the big >> problem - it's that the adm weber is too small for a reasonable >> breathing 4 litre engine. > > It is, and that's a good point. My engine is 1.6 litre. -- ___ ____ /__/ / \ ** Registrovani korisnik Linuksa #291606 ** / / \/ /\ \ ** Registered Linux user #291606 ** /__/\____/--\__\ ** http://counter.li.org/ **
From: John McKenzie on 25 Nov 2007 09:36 Yvan wrote: > > It's not single ring. This is the photo of the original mixer plate for > Weber 32 ADF: > > http://www.ptt.yu/korisnici/i/v/ivica/lpg/Weber32ADFmixer.jpeg Looking at that the problem will still be that airflow through one barrel will pull on one of the rings, but will suck air back in from the other ring _unless_ both barrels open at the same time/rate as each other. As athol said, you'd need something to prevent that happening. That's actually not an extremely big problem. It could be as simple as a one way check valve. If the spring used in it is _VERY_ soft it'd work well enough, but you'd have to design it so that it was big enough to flow enough around the check valve to support the required flow, but at the same time be small enough to not dampen the signal strength. I can do a diagram of what would be needed if it's any help. Of the top of my head, I'm not sure what's available to suit it - but I wouldn't be surprised if something could be made very cheaply to suit it. -- 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: John McKenzie on 25 Nov 2007 09:53 Yvan wrote: > > Nedavno Noddy piše: > > >> the thing to be mindful here - as there is normally locally some > >> criticism of that combo - it's not the amos ring thats the big > >> problem - it's that the adm weber is too small for a reasonable > >> breathing 4 litre engine. > > > > It is, and that's a good point. > > My engine is 1.6 litre. Certainly. The reason I mentioned this issue is that if you do a google search you might (I don't know for sure) get a few links which say that the adm weber and lpg is a bad idea or something like that. If there are links that say that, then it's important to know that the real problem is with the size of that carb/lpg combo for such a large engine. On a smaller engine like yours (in fact for anything under about 3 litres) it's a different story, and can flow enough for a good result. All of us reading this thread understand 100% how frustrating it must be for anyone to have an lpg setup that seems to never be able to be properly fixed to run well. What you do is of course your personal choice, but it's definitely possible to get you a good working solution without having to go to injection. Injection is good - absolutely - buy you'll be able to get the job done without much more expense and frustration. -- John McKenzie
From: John McKenzie on 25 Nov 2007 12:52 Yvan wrote: > > Nedavno Yvan piše: > > > I posted a link of a photo for my vaporizer, I will post some photos > > later today (when I get back from work). > > ... and here it is: > > http://www.ptt.yu/korisnici/i/v/ivica/lpg/lpg.html > > Hope this can help. > > BTW I also have another problem. Engine will not run on lpg until it > heats up around 1/4 of the normal operating temperature, and will stall > if I lift my foot of throttle. When it heats up it runs OK at idle. Ok the 'theory' on this is that you are supposed to set the idle a/f mixture when the motor is cold for best cold idle smoothness. What is supposed to happen is that as the car heats up, the higher coolant temperature flowing through the convetor will automatically lean the mixture out a little bit to suit. That's basically where I'd be looking to fix it - by starting it, and adjusting the idle a/f till it will run when completely cold. It might need another person there to help start and help keep it running whilst you adjust the mixture. > Before I changed carburetor I could start my engine on lpg. Just to > mention it runs OK on petrol. Based on everything so far - it's the twin spud setup not being compatible with a two barrel that has different primary and secondary opening rates. I definitely think the amos ring/ carb hat device is the best option - it will not be bothered at all by the secondary opening rate - since it sits above the top of the carb. It's also 100% compatible with the current convertor - so there'd be little work to do to actually fit it. If the one Noddy has doesn't fit based on your post with the measurement/spacing of the bolts on top - I'll find one that does - it's not a big deal - there's absolutely tons of lpg stuff down here - it's been popular since around the late 1970s -- 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: John McKenzie on 25 Nov 2007 13:19
here is the area that can be connected to the air filter case. http://jmacperformance.com/Vap1.JPG -- 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 |