lean burn systems

[crashing513]

hello fellows got turned on to your site by a bud.the ? iv got is i picked up a 1979 cordabo. factory 360ci 4 barrell dual exhaust 3.55 gears with tow package. its got a themo "junk" quad. carb on it. do to carb problems im probley going to put a eldlbroke carb on it. my ? is there a easy trick "like the horse shoe nail in the nuetral safty switch on trans" to do away with that big bulky breather. thanks for the help MOPAR MAN DOWN lol. ps sorry for spellinggg

[hotrod7043]

Tg is agood carb you could covert to electronic ign. Get a guy that has down then A kit 2 floats and a choke pulloff you be gonei.

[crashing513]

does that mean complete wiring harness change or just distubutor

[hotrod7043]

You can buy a kit fron Mopar P3690426 and just remove the Computer or but a new air aircleaner , kit inludes a wiring harmes , ecu , and new didtributor and instructions.a volt metter and test are nice to have.

[63Fury]

Originally Posted by crashing513

does that mean complete wiring harness change or just distubutor

Find a 70's car or truck (should take you about 5 min.) and get the distributor, electronic control module, ballast resistor and the wiring that connects them.

Then wire it like the attached file.

Toss all the lean burn stuff.

[66 dodge]

chrysler mopar kit should be a good idea i've got one for my 66 coronet

[BigBlockDude]

I would also replace the carb, not because Thermoquads are junk, but because the lean burn carbs are, well, lean. If you had an older one it would be fine.

The Edelbrock would be a good choice. Get the electric choke version and jet it like the non elect. choke carb. I feel they are a little lean to start out. Should run nice.

Toss the lean burn as suggested.

[dodger1]

Two things here - 1 - the ignition should be swapped to the Mopar electronic set-up as mentioned above. You could do it on the cheap if you're OK with finding and using j/y parts(I did it that way years ago - wouldn't do it now) My personal opinion is to buy the stuff new from suppliers (not expensive and not used) The wiring setup is pretty straightforward. - 2- Don't write off the TQ just yet. These carbs are pretty damned impressive IF THEY ARE BUILT RIGHT!! And there are folks out there who can do that for a lot less than you'll spend on an Eddy with the optional Mopar linkage. Check out demonsizzlers website for starters. I did my own years ago and it works fine for a street carb. 800 CFM isn't to be sneezed at. You have a nice package to start with, but don't throw the baby out with the bathwater!!

[dodger1]

Forgot to say - Welcome to the forum!!

[crashing513]

thanks to every one for there 2 cents. what kind of$$$ are we taking on the kit

[badgood]

hi crash... im new here tooo.... thanks to you in a ackward way.. im now a Very Proud owner of an ol MoPar...L8R dude

[GЯEENHORNET]

Originally Posted by crashing513

...its got a themo "junk" quad. carb on it...

why is it junk? i assume you have no clue on how to tune one of the BEST carbs ever made?

oh yah... and welcome

[rumblefish360]

Crash, this pot is calling the kettle black. Your spelling sucks LOL and so did mine, BUT, I'm just pulling your leg. The more you use this thing, the better you will get.

Now, click here for a T-Q help section; http://www.moparchat.com/forums/showthread.php?t=109005

Read up on it. Somewhere in there Demonsizzler gave a tip on how to help the T-Q you have there richen up a tad. Bend AFB rods 3/4 of an inch to work with the T-Q. An earlier model would be better. But work with what you have for now.

On the lean burn, just un-hook the wire harrnass from the computer and your done.

[crashing513]

this is my second attempt to keep a stock tq on a motor.had same problem on my 1 ton dually i pull my race cars with. would not accelerate correctly loaded up. the man that does my carb work is a 70 year old retierd mopar mechanic.he worked on them when they were new.ill get my car back from him tommorow. hopefully he can get this one lined out. might just say Buck it and throw some points in it.

[badgood]

looking at my back yard i see several s10s v8 ones a turbo one a blown one a MOPAR one and a kia... when my red one came it had a quadrojet 750 .. i tweeked , i tweeked , i rebuilt , i tweeked and tweeked ... i unbolted i threw it into the woods as hard as i could im hopes id never seeing it again. i did this right in front of a buddy who went into the woods to find it and when he came back i told him if that thing hits the property id smash it with a hammer so if you want put it in your truck.....6 mos later he walks up to me and says that carb is junk. i just gave him the lost deer in head lights look. i guess what im saying is sometimes things just have to be changed or replaced...junk ones are junk and theres nutting like new.. for 250 bucks i could have saved myself 2 days work.. and a ton of agrovation L8r

[3404spdvaliant]

What was the original question?

[rumblefish360]

What was the original question?

Good point.

my ? is there a easy trick "like the horse shoe nail in the nuetral safty switch on trans" to do away with that big bulky breather.

I never heard of the nail trick. I have used a racer remote starter button.

The big bulky air cleaner can be replaced by any 5-1/8 4bbl air cleaner.

[hotrod7043]

214.95 at www.manciniracing.com

[dodger1]

513, I'm a 70 year old retired bus driver. Maybe I should rebuild your TQ, if your Mopar mechanic can't. (LOL) Seriously, these carbs can be made to run very well as long as the center section (black phenolic resin part) is not cracked, and the choke pull-off/airdoor damper is not removed. The small bits (jet wells) at the bottom of the main jets can be re-epoxied if they leak. The rest of the carb is pretty sturdy, and will respond well to a careful (NOT a carb-cleaner) rebuild. Niehoff kits are out there for under $40, as well as floats. Demonsizzler will do a custom build for you also. I found a couple of cores in local j/y's a few years ago for zero $$, which helped me to learn the ins and outs of them. But maybe you don't have time to mess with your TQ, so set it aside until you do, and use whatever works meanwhile.

[crashing513]

thanks for all the 2cents. dont know how said it about changing the wiring to total electronic. i had a brain fart at work. iv got a 1976 mopar motor home i gutted out to store parts.now if i stole all the eletronics off of it, how could i enter-grate it into the stock wiring harnes. i now ill need the electronic igh box.my ? is this a cut wire and spice. or unplug a fire wall and plug in. in respects to my bud badggood he has as much luck working on old things as i do. hes a live long FORD man but im slowly converting him. thanks for help.

[rumblefish360]

Therees wireing diagrams on the net to look over as well as MoPar books that will show you how to hook up the Orange box and parts.

[hotrod7043]

You have been told what you need , 63 fury even posted a wiring diagram. what seems to be the problem ithink i know.

[crashing513]

well hot rod if i knew what i was doing i woulndn't be here asking for help thanks any way

[N.R.F.D.]

if im reading the origanal post right i would take the computor off the air cleaner stick it to the fire wall or or some place as cool as posible and you dont need any changing of ignition stuff you will have to extend the wireing but thats more straight forward then learning something new. i would try to stay with the thermo quad its a great piece but what you want to use is a good piece good luck

[hotrod7043]

Nfrd you cant relocate a Lean Burn computer.Crashing i know what you were looking to do and we gave you the info no problem but i sounds like you are still confused about the wiring.just unplug the big harness from computer get the ecu mounted were you want and follow that diagramm, if you need more help so body is alway here, also buy a cheap 14in Summit air cleaner, that pic yu put up car looks good.

[crashing513]

i looked at the dia. i am some what literate to dia.the big ? . i have is do i need to make sure i have 3or 4feet of the donar wiring harness to do this. because the dia is about 8 inches from everthing. i know im making this harder than it is im sorry not doing it on porpus. just havt to dum it down for me. if possible.ok on my carb. my guy tore it apart cleaned it very very good. said it looked very good inside.WE put it back on fired right up. had what i like to car the mopar whistle. he said he didnt like that.used a half a can of cleaner never found a leak. on the rear of carb dist side the large port "pcv" valve hose, had no vac.but front side of carb big port"plugged" had vac. shut car off carb loaded up.he decided to take carb off it check internals.? this motor has a windeg tray in oil pan. if my teriminaloge is correct "PCV" valve is possitive charged vacume or preshure charged, or something like that.is there something butting heads in ther or what.

[crashing513]

o i forgot i never posted pics

[crashing513]

well guys got carb lined out. now my timing marks are jumping around when trying to set time-mining. plug vac to breather doesnt change anyting. helpppp

[hotrod7043]

Plug vac to Breather? the leanburn is anon vac advance dist, Is there a vac line to computer? maybe a vac line hitched up wrong.read all the prev advice

AND CONVERT TO ELECTRONIC IGNITION.!!!!!!!!!!

[crashing513]

im trying to keep it stock if possible. last resort is going eletronic. the vac going to com has really good vac.it sould change timing when plugged. if com on breather is working write?