Lean Burn Conversion 101
- Thread starter Jack Meoff
- Start date
bremereric
FMJ Body Moderator
Lean burn gone with a simple distributor swap. MSD Ready to run for a small block Mopar. Simple Simple installation instructions included. Done in my Gran Fury.
http://www.summitracing.com/parts/msd-8388/overview/make/dodge
http://static.summitracing.com/global/images/prod/large/msd-8388_w.jpg
http://www.summitracing.com/parts/msd-8388/overview/make/dodge
http://static.summitracing.com/global/images/prod/large/msd-8388_w.jpg
Jack Meoff
Mopar Maniac
How is it Eric?
Big difference??
I've been meaning to do my Fifth but I figured I'd wait till my computer called it a day.
bremereric
FMJ Body Moderator
Starts right just like electronic ignition.
Jack Meoff
Mopar Maniac
Mr C
Well-Known Member
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That's what I did with the Dippy...waited until the computer failed. My 5th is still LB and running strong. I have two computers (one I keep under the driver's seat- almost like a spare ballast resistor) to swap in...once I'm out of computers I'll swap. I got them from running cars that got scrapped-they were surprised I wanted them so I got them for free.
I like free.
Jack Meoff
Mopar Maniac
I like our Florida inspections - they make sure you are in a car.....
Amen!
I kind of wish we could go back to safety inspections though. There is some really terrifying junk on the roads. Home made trailers, cars with no brakes, smashed in windshields, the scrappers with junk metal piled 15 feet high in trucks with none of it tied down. I rarely ever get behind a trailer of any kind that has working lights. I could care less what someone chooses to drive, I'm not at all a fan of government intervening all the time but some people with endanger everyone else if there are no safety standards being enforced. Driving in South Floduh anymore is almost like driving in New Delhi. If you're from Floduh, you know exactly what I'm talking about
Gunnar Schroder
Well-Known Member
Hi all,
Thanks for all the information regarding skipping the Lean Burn system. I have had three Dodges. One Pickup club Cabin 1978, one Aspen SE station wagon and still got the Dodge Diplomat Le Baron (in Norway the Diplomat name was owned by Opel). All three cars have had and still have a 3.18 engine. Pickup no problem and had her for 3 years. Aspen had her for 7 years before an idiot insisted to scrapping her by driving into the LH side of me. The Diplomat G22 I still have and had her since 1991.
Now to the Lean Burn system: The Aspen had it and after a few years that packed in; same for the G22. I bought an original Mopar conversion set from the norwegian importer and still have the Performance book they gave me way back late 1980's. It was dead simple to replace the Lean Burn system but the original carb Thermoquad was a different kettle of fish. The importer in Norway simply could not get her to run properly. They said the manifold leaked so drawing false air. No way I said as I had personally done the cylinder heads and ground in the valves as well as new gaskets. So what to do? I took off the TQ and checked it over in my own hobby workshop (been a biker since mid 1960's) and found the carb draw false air due to a badly worn carb front spindle. The strong return spring worn one side so leaking like hell. I did that up maching new bushings, tinning up the spindle, maching that too to make sure it turned all right. Perfect!
But having done all that I found it better to swap that to a new Edelbrook fitting straight on the manifold and easier to tune. Lean Burn stopped working on the G22 so a fresh convertion kit bought. Since swapping to Electronic ignition no problem at all. Same as I did on my Norton Motorcycle way back in 1980's. She is still running perfect.
Anyway here is a copy from the Performance manual
Thanks for all the information regarding skipping the Lean Burn system. I have had three Dodges. One Pickup club Cabin 1978, one Aspen SE station wagon and still got the Dodge Diplomat Le Baron (in Norway the Diplomat name was owned by Opel). All three cars have had and still have a 3.18 engine. Pickup no problem and had her for 3 years. Aspen had her for 7 years before an idiot insisted to scrapping her by driving into the LH side of me. The Diplomat G22 I still have and had her since 1991.
Now to the Lean Burn system: The Aspen had it and after a few years that packed in; same for the G22. I bought an original Mopar conversion set from the norwegian importer and still have the Performance book they gave me way back late 1980's. It was dead simple to replace the Lean Burn system but the original carb Thermoquad was a different kettle of fish. The importer in Norway simply could not get her to run properly. They said the manifold leaked so drawing false air. No way I said as I had personally done the cylinder heads and ground in the valves as well as new gaskets. So what to do? I took off the TQ and checked it over in my own hobby workshop (been a biker since mid 1960's) and found the carb draw false air due to a badly worn carb front spindle. The strong return spring worn one side so leaking like hell. I did that up maching new bushings, tinning up the spindle, maching that too to make sure it turned all right. Perfect!
But having done all that I found it better to swap that to a new Edelbrook fitting straight on the manifold and easier to tune. Lean Burn stopped working on the G22 so a fresh convertion kit bought. Since swapping to Electronic ignition no problem at all. Same as I did on my Norton Motorcycle way back in 1980's. She is still running perfect.
Anyway here is a copy from the Performance manual
