Alternative Fuels

now...on start up ...can here air passing through the mixer instead of the fuel vapour

such a simple thing caused complex problem$

well, I'll be ..... the key to this simple thing, concept kicking about in my head, wondering how the fuel could get richer - sneaking past the diaphragm seat somehow ??? Well, in a complex mixer such as the Impco it is the mixture screw .... ain't it ?? Idle mixture @13.3 :1 . If anything tailpipe ...

oh, my mistake Franz - and thanks for coming in so quickly :) I should have explained that it is a portable on road tail pipe analyser Vane 8020 or the like , used it many times on many different vehicles. Am used to seeing lean readings at idle when something blows wind up its pipe in a stationary ...

used to always get converter freeze until I plumbed priority to the converter instead of the heater core first. Was the cold air inthe mornings it could not cope with - poor little J / Cobra converter. I also ran a fresh brrr, cold air intake directly from the side of the guard - where indicator onc...

I'm just back from a test drive with an AF meter running off the tail pipe - my first conversion 25 years ago. 250 ci straight six running dedicated Impco L converter and 225 mixer - no balance tube. Not really been touched in 25 years - just driven, and pretty rare drive in last 15 years. I have su...

and...isn't the pollution gonna be hanging around our ankles rather than up higher in the atmosphere and forever looking for a drain to fall down as it disperses due to its heavier than air properties ??

not seen anyone use the correct name for the ullage valve in above posts. I think the ullage valve as used in camp and BBQ bottles was discontinued n automotive propane containers some thirty years ago. If you have looked after your ullage valve container there is no law to prevent the conatiner fr...

Great to see the charts, and to see that richer does not always, if ever, produce best power ! recently reduced my rich levels to high 13s max and feels like my 8 valve, 1800cc boxer NA drives better. My next turbo application deserves a temp probe to make sure I don't crack another turbo

to be honest, this ute ran quite well as a dedicated system, gave better economy compared to same equipped same model, same engine - just 450,000 fewer kms. One deliverewd 540kms to 70 litres. The one with fresh engine and three air transfer holes did 540kms to 65 litres - then I changed exhaust for...

http://i1375.photobucket.com/albums/ag479/pinkstuff86/DSC06384_zpsadf07e0f.jpg sacre bleu ! when are they hand flow marks applied, before or after the siver part number sticker is applied ?? Guessing this happened amongst highly trained assembly workers ..?? Am I lucky it even ran ? While asking ab...

The Diagnostic book came in handy when I had an intermittent no start. After checking the supply channel, replaced a cracked housing solenoid at the tank and got another no start - always after many hours of no operation. I come in to read my downloads to have brain register with sideways mounted mi...

I am not about to resolve your issue, but, you did mention it has a miss ! A miss, as in not firing correctly or at all would pump out some bad air richness ? For some to consider the concept -a very tidy lean bias logic ( LBL) system has been developed in Australia I believe for our market.Uses IMP...

hmmm, well, thanks for trying. The mention came out of an IMPCO book - featuring a lot of detail of classes held by Don bass, answering a lot of questions, looking at all gas applications of the day - early/mid seventies. Conjuring up image of Franz in shorts as a new recruit way back then :) Nice t...

and see what bumpstart has done by mentioning an entirely different part - though similar part number ? Sent Franz way of tangent of the initial topic the compensator AB1-26 for balance lines - curious to know what it looked like. Did not find it any old notes or parts lists of the days when the scr...

happy to report no more emails from Franzs address book infiltrators. I also clicked on the report phishing for gmail, but phishing seems to constitute attempts made to ask for banking details etc - I just got a link, I hope. Not scratching, not any slimmer either