Search found 365 matches

by jono
Tue Aug 04, 2020 7:00 pm
Forum: Propane Forum
Topic: Australian GMH HSV 6.0 litre LPi, stalling
Replies: 3
Views: 212

Re: Australian GMH HSV 6.0 litre LPi, stalling

Thanks for the info C3 One vehicle review article I read suggested 5300 change to the wet fuel Another suggested auto change once at op temp, but this has a switch for manual change between fuels and when switched off propane, stays off When on propane mode, it starts off propane indicated by an ora...
by jono
Mon Aug 03, 2020 4:11 am
Forum: Propane Forum
Topic: Australian GMH HSV 6.0 litre LPi, stalling
Replies: 3
Views: 212

Australian GMH HSV 6.0 litre LPi, stalling

I have been googling and found absolutely nothing technical Forum wise on this factory or factory appointed liquid injection system Made me smile when reading that the sub 400kW beast makes more power on less fuel on propane:) The owners first and only symptoms offered - can't get any fuel into tank...
by jono
Mon Aug 03, 2020 3:41 am
Forum: Propane Forum
Topic: Dual carbs with propane?
Replies: 26
Views: 8425

Re: Dual carbs with propane?

Well, it is a while since I visited and said anything ! I used to run twin carbs but they were essentially 'factory' Twin Hitachi petroleum carbs, not twin Impco though I fed these two barrels each babies from a 125 about 18" away 110 cubic inch flat four Subaru EA81 Brumby ( B.R.A.T. to most of you...
by jono
Tue Jul 23, 2019 8:58 am
Forum: Propane Forum
Topic: Impco accel Hesitation, poor idle when warm VY Commodore
Replies: 9
Views: 3876

Re: Impco accel Hesitation, poor idle when warm VY Commodore

It sounds like the hesitation on take off is a lean fuel mixture. A tailpipe analyser can work that out. Maybe if you can get an O2 reader off front most oxygen sensor might also tell a story
by jono
Tue Jul 09, 2019 9:49 am
Forum: Propane Forum
Topic: Impco accel Hesitation, poor idle when warm VY Commodore
Replies: 9
Views: 3876

Re: Impco accel Hesitation, poor idle when warm VY Commodore

For diagnostic purposes I would try a clean air diaphragm and temporarily disable the FCV stuff. This stuff forces the mixer to work in reverse to the way it was meant to. I am tinkering with a unit by Peel that allows mixer to work as it should but more on it later when I have sorted it's demons. C...
by jono
Wed Jul 03, 2019 7:40 pm
Forum: Propane Forum
Topic: Fuel level gauge at drivers end
Replies: 4
Views: 2642

Fuel level gauge at drivers end

I am curious what people have as fuel level indicators up front. My first conversion 30 years ago used a box of tricks to convert Ohms from tank contents gauge on the tank, into a range to suit the fuel gauge already in the classic old Ford's dash. It worked well at each end of the ranges Other conv...
by jono
Sat May 18, 2019 11:24 pm
Forum: Propane Forum
Topic: flashback for some ..
Replies: 0
Views: 4754

flashback for some ..

I jumped on the offer of this old converter just for the Impco name in script.
It is only something I had seen in old brochures . Date sticker was 000987 so they dropped the script style somewhere between Sept 87 and July 90 when I ordered my first components
by jono
Sun Apr 28, 2019 8:35 am
Forum: Propane Forum
Topic: Valid email for GasResearch in Australia
Replies: 7
Views: 2984

Re: Valid email for GasResearch in Australia

I hope you find them still in business as many suppliers have closed their doors here in Australia or no longer trade in log gear.Talking to a former Elko supplier only yesterday chasing an injection converters filter service kit. Sorry. And he also explained why so much pipe sealant all over things...
by jono
Mon Apr 08, 2019 6:21 pm
Forum: Propane Forum
Topic: Adding an elec. fuelpump to an Impco vaporizer+425 setup
Replies: 39
Views: 9264

Re: Adding an elec. fuelpump to an Impco vaporizer+425 setup

at full throttle you may be upsetting the vacuum needs of the Impco gear for it to work nicely. It is a bit like my turbo boxer 1800 cc _ everything is better in power delivery if I sort of ride the wave of power with a lighter throttle rather than foot to the floor. I do like that the suggestion of...
by jono
Sun Apr 07, 2019 8:59 am
Forum: Propane Forum
Topic: Additional mixture base leaning
Replies: 7
Views: 3158

Re: Additional mixture base leaning

well C3, that may be the case on the 2 hundred series having a lean idle with their usual applications, but I am finding most knowledge and interest especially in the US is with larger capacity fours, sixes and eights. I recall when I did my first turbo 1800 cc every Impco specialist and Impco thems...
by jono
Wed Mar 20, 2019 8:57 pm
Forum: Propane Forum
Topic: Additional mixture base leaning
Replies: 7
Views: 3158

Re: Additional mixture base leaning

and thinking this through a little more before I go swapping my spare old body in to muck about drilling holes ...considering the idle air mixture adjust screw is about 8mm dia and buts up to close a slightly smaller hole inside I could likely make a hole as large as 6mm and use the screw in circuit...
by jono
Fri Mar 15, 2019 7:42 pm
Forum: Propane Forum
Topic: Additional mixture base leaning
Replies: 7
Views: 3158

Re: Additional mixture base leaning

Thanks for comment

Mind you the hole I propose is essentially between the same two chambers that the idle air mixture screw is between so I am hoping there will not be those issues you mentioned as it will all before the throttle body
by jono
Mon Mar 04, 2019 4:10 pm
Forum: Propane Forum
Topic: Air line oiler as simple valve lubricator
Replies: 17
Views: 4870

Re: Air line oiler as simple valve lubricator

interesting approach but the pcv probably does not deliver consistently in some cases. I installed a cheap version of UCL to the Impco throttle body on my 250 ci inline six. Within ten miles I had to reduce the idle speed by a few hundred rpm , an anomaly I can only suggest caused by freeing up the...
by jono
Tue Feb 26, 2019 5:23 pm
Forum: Propane Forum
Topic: Additional mixture base leaning
Replies: 7
Views: 3158

Re: Additional mixture base leaning

Sorry, I should have said I have already got the maximum of three leaning rings in. I need to get a crude lean base rather than the finer tune the rings give. Another method suggested is balance tube but with small bleed holes drilled in the converter end brass fitting to act as a damper to the lean...
by jono
Sat Feb 23, 2019 8:29 pm
Forum: Propane Forum
Topic: Modern setup vs. ancient factory propane specs on tractor
Replies: 16
Views: 5094

Re: Modern setup vs. ancient factory propane specs on tractor

Your idle speed may be depending on how much air slips past throttle butterfly when in no load situation I once used an Impco throttle plate body that is a stretched out circular shape like a round dining table that has rectangular extensions in the middle section - so it was a replacement for a sin...