Alternative Fuels

Going to work on my patience levels in order to photobucket ...check, did not do a Spoonerism on the name ... to get a photo of this installation on here. It is odd, I have run same size capacity and type - boxer engine with quite a distance from throttle plates to 125 mixer , so quite a volume with...

I have to admit I have never pulled a new Vialle apart to compare the diaphram with the replacements , but to me , I also thought the replacement rebuild kits contained a less ruggedly constructed diaphragm like the OP. For convenience or short on time, once chose to do an exchange rebuilt converter...

OK, now, recalling IMPCO theory for the old school stuff, it is best to keep the volume between mixer and the back of the intake valve to a minimum for best fuel demand changes. Non propane theory has been to try to get this volume to be close to the engine capacity for efficiency or power - I forge...

but with this in mind it still does not stop my curious tinkering - getting the odd dead spot in making traffic turns in second gear - still not tail pipe analysed mixtures (so serves me right :) ) but gosh, if I just tramp it in most situations the little ute goes as quick as it can shove me along ...

well, for one thing, you can't expect 300 horsies to be fed from one 175HP rated 200, unless a turbo makes a difference. I like the idea of staging the opening of the second mixer BUT surely the two will work in unison with one throttle body further down stream as the throttle body is what connects ...

just an update - suspecting that the 100 may have been struggling to pull fuel from the larger spec L converter on an 1800cc 8 valve boxer - cobbled up a 200 to replace the 100. The 200 previously ran fine on another 1800cc boxer just it was more twin port inlet ( one port per pot instead of one por...

OK, the blade scrape does not seem to have done anything, or enough. The next trick will be to try flipping the marked :) washer and see if that is enough. Then, have tried gas thread tape on the adjust screw but it did not stay with threads to get to internal hole block. May try closing it on some ...

Still yet to test after my blade scrape. Thinking a slight nick in the top of the inner fuel ring might add fuel to needed rate, add another nick to increase rich :) Got a new IMPCO 125 in transit for me now, see if that is any better, forgot to order the 'bell' so may need to borrow from another ap...

http://i1375.photobucket.com/albums/ag479/pinkstuff86/DSC07275_zpss54rugey.jpg my guess is this would be a possible culprit - the outer ring is not machined , or not machined with greatest accuracy and sports a few lips, see the shiny bits ? Surely this is just a spillway for air to seep over and i...

thanks C3 for the good comments. I had a sneaky suspicion that it had a light idle for fork use, but did not think it would have a leaning ring from new, but maybe so - I need one for another application and had run out so would be a useful find if there is one. Am doubting the after market hand flo...

Hmm, looks just like what we called a Chrysler Valiant AP6. I recall doing a lot of thinking, asking a lot of questions live and in various cyberspaces and almost got info overload I then fettled up a turbo blows through 200 mixer mounted on a efi throttle body. The mixer was screwed to an adaptor b...

now that I think about it, may even be a copy of a 100 bought it new some years ago, used it once to test it in place of a 125 it ran too lean on idle yet drove well, could not fault it without an analyser up the tail pipe fast forward to now - has been installed on similar vehicle and engine Subaru...

if you go draw through you are not pressurising your converter, so no pressure leaks to fear or deal with. I didn't like the idea of vapours going through a hot turbo either - had no problems in 50,000km at up to 12 psi /

is the 425 before or after the turbo ? before is draw through and turbo gets the gas and air mixing through it nicely :) after is turbo blow through the mixer/425/carb I have had marked drivabilities with differing balance tube internal diameter, smaller refined drivability when I had turbo blows th...

not in here to suggest what diaphragm - only to say I once tried turbo blows through mixer with a 200 freshie, L converter on a boxer 1800 cc four pot. It did not work well enough to drive through the gears, though improved as I went smaller and smaller ID balance line. I was then told to go suck th...