Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: Bubba on May 23, 2011, 06:19:35 PM

Title: lpg on the very cheap
Post by: Bubba on May 23, 2011, 06:19:35 PM: where would i find very basic lpg kits also mixer rings big enough for 4barrel carbs
Title: Re: lpg on the very cheap
Post by: Panic mechanic! on May 23, 2011, 06:28:59 PM: you would need to find a mixer plate that fits under the carb not sure they do them to fit 4 barrels.
Title: Re: lpg on the very cheap
Post by: wildwood on May 23, 2011, 07:55:57 PM: Tinleytech near Bourne Cambs
Title: Re: lpg on the very cheap
Post by: Bubba on May 23, 2011, 10:17:41 PM: http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=150603060917&fromMakeTrack=true&ssPageName=VIP:watchlink:top:en#ht_5147wt_1139 (http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=150603060917&fromMakeTrack=true&ssPageName=VIP:watchlink:top:en#ht_5147wt_1139)
Title: Re: lpg on the very cheap
Post by: Panic mechanic! on May 23, 2011, 10:33:44 PM: fuck, thats a terrible idea, you may aswell stick a mixer ring on the end of the airbox!
Title: Re: lpg on the very cheap
Post by: Bubba on May 23, 2011, 10:36:40 PM: no idea mate i know mixer rings are pants on carby v8s as they dont flow enough air to run petrol propper
Title: Re: lpg on the very cheap
Post by: wildwood on May 23, 2011, 11:34:11 PM: Just a thought.......... :icon_twisted: :icon_twisted:

King CJ........ has LPG on 360 V8 and trick leccy sparx..... :icon_super: :icon_super: worth an ask..........

Jono you out there?
Title: Re: lpg on the very cheap
Post by: wildwood on May 24, 2011, 10:12:15 AM: Found the site on bookmarks :icon_biggrin:

http://www.tinleytech.co.uk/lpgprices.html (http://www.tinleytech.co.uk/lpgprices.html)
Title: Re: lpg on the very cheap
Post by: ferretjuggler on May 24, 2011, 11:37:10 AM: I was warned off them "moving plate" mixer things wot are specially made for 4 barrel carbs.

Apparently one backfire and they are toast at £300 a time too.
Title: Re: lpg on the very cheap
Post by: Dave69 on May 24, 2011, 06:21:52 PM: is that's why the filter has a metal shroud round it to stop it exploding on backfire into the intake
Title: Re: lpg on the very cheap
Post by: Bubba on May 24, 2011, 06:29:58 PM: panic could you enlarge why the ebay item wont work your expertise in the field would be usefull my only expertise was a 360 i ran for several years on lpg with a mixer ring setup
Title: Re: lpg on the very cheap
Post by: Panic mechanic! on May 24, 2011, 06:41:42 PM: it will work but it is a very poor design, the plenum chamber they use hold enough gas to cause a fairly big explosion( you will have the has held in the plenum and the manifold effectively) if ignited by a back fire, when they do backfire they draw fuel out of the carb usually via the float bowl breather and spray it all over the air filter, which then catches fire and shortly after your pride and joy catches up with it.
Title: Re: lpg on the very cheap
Post by: Bubba on May 24, 2011, 06:52:55 PM: had a few back fires myself when fiddling with in no fires cos i think due to not running gas and petrol at the same time mind you some carbs i think hollys can destroy them selves with a backfire they musta took some time to think about it the normal mixer ring has to sit on top the carb thers nowhere else for it but to flow the gas they constrict the carb and then it just wont breath on petrol
Title: Re: lpg on the very cheap
Post by: Panic mechanic! on May 24, 2011, 06:59:47 PM: you will see a lot of the cheaper kits for carbs running a cheap welded sheet steel plenum with a standard mixer ring mounted over the air intake, be the same as just poking a gas pipe down the inlet and turning on the valve on the tank.
Its actually better to have the plate type that introduces the gas under the carb and a good one ( not seen one yet) will cause no problems with air delivery when running on petrol.
Title: Re: lpg on the very cheap
Post by: Bubba on May 24, 2011, 07:02:23 PM: not seen anything under the carb asyet myself any pics of such a thing but would you not have the same problem with not flowing enough air for propper petrol running
Title: Re: lpg on the very cheap
Post by: Panic mechanic! on May 24, 2011, 07:09:21 PM: nope as they generally are the same diameter bore as the bottom of the carb so don't restrict the flow, I guess in many ways they operate like a spacer plate people use on later engine to improve fuel stand off.
the technology all changed when multi-point injection came along and the old type were dropped down to the issues of safety.
Not sure if I can find a pic but I will take a look for you.
Title: Re: lpg on the very cheap
Post by: Panic mechanic! on May 24, 2011, 07:15:06 PM: (https://birtydastards.com/frm/proxy.php?request=http%3A%2F%2Fwww.tinleytech.co.uk%2Facatalog%2FMixer-92015-mod_WEB.jpg&hash=d76527f3ed80929f4e987d50cffe9f85f3ab75cd)

rover 3.5 type plate fitted with injection type
Title: Re: lpg on the very cheap
Post by: Bulldog67 on May 24, 2011, 08:33:24 PM: get all this sorted Bubba and running sweet and MJS will have another 3 Jeeps with 401's to convert
Title: Re: lpg on the very cheap
Post by: isle of man on May 24, 2011, 08:41:33 PM: I can hear Hughie Green!!!!
Title: Re: lpg on the very cheap
Post by: Bubba on May 24, 2011, 08:49:41 PM: i mean that most sincearly folks
Title: Re: lpg on the very cheap
Post by: Bulldog67 on May 24, 2011, 08:50:59 PM: pair of weirdos
Title: Re: lpg on the very cheap
Post by: isle of man on May 24, 2011, 08:53:47 PM: :ace: