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1980 LeBaron Carb



 
 
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  #1  
Old October 29th 05, 06:07 PM
nirodac
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Posts: n/a
Default 1980 LeBaron Carb

I was at this NG some months ago, this issue is part of that problem.
Problem; no ported vacuum for dist. Fix from this NG was to replace carb.
Now the question; Jobber wants to sell me a carb for a 1980 318 CID, Dodge
truck, instead of one for a 1980 318 CID Lebaron. He claims the carb is the
same except that there is no vacuum connections for the carbon canister,
there is zero emission equipment support on this carb (no egr connection
port). Everything else appears to be there. The jobber claims the carb is
heavy duty (my guess is because it was meant for a truck). The Lebaron does
not have the lean burn system, or an O2 sensor, and it passed the emissions
test with flying colours, without any of the emissions gear attached (EGR
and vacuum advance). So the question is, can I use this carb in this car,
or will the lack of carbon canister, egr,etc, cause me grief. Fuel
efficiency is the prime concern here. Emissions appear to be well within
spec with the current carb. Is fuel consumption going to be higher with the
truck version of the carb.
I should note that the current carb (not factory orginal) actually has a
SEALED, ported vacuum port, (I disassembled the carb and traced the internal
channel back to the base casting, and the well that should have been opened
to the venturi, (no hole punched in the aluminum casting), from the
factory).
The engine was rebuilt and the lean burn removed by a local Chyrsler dealer
about 30 Km ago, at that time they also replaced the carb.



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  #2  
Old October 29th 05, 06:13 PM
nirodac
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Posts: n/a
Default 1980 LeBaron Carb

Ah, I just discovered that the current carb is for a 1981 318CID engine w/o
feedback (no O2 Sensor).


"nirodac" > wrote in message
news:U_N8f.65275$S4.30548@edtnps84...
> I was at this NG some months ago, this issue is part of that problem.
> Problem; no ported vacuum for dist. Fix from this NG was to replace carb.
> Now the question; Jobber wants to sell me a carb for a 1980 318 CID,

Dodge
> truck, instead of one for a 1980 318 CID Lebaron. He claims the carb is

the
> same except that there is no vacuum connections for the carbon canister,
> there is zero emission equipment support on this carb (no egr connection
> port). Everything else appears to be there. The jobber claims the carb

is
> heavy duty (my guess is because it was meant for a truck). The Lebaron

does
> not have the lean burn system, or an O2 sensor, and it passed the

emissions
> test with flying colours, without any of the emissions gear attached (EGR
> and vacuum advance). So the question is, can I use this carb in this car,
> or will the lack of carbon canister, egr,etc, cause me grief. Fuel
> efficiency is the prime concern here. Emissions appear to be well within
> spec with the current carb. Is fuel consumption going to be higher with

the
> truck version of the carb.
> I should note that the current carb (not factory orginal) actually has a
> SEALED, ported vacuum port, (I disassembled the carb and traced the

internal
> channel back to the base casting, and the well that should have been

opened
> to the venturi, (no hole punched in the aluminum casting), from the
> factory).
> The engine was rebuilt and the lean burn removed by a local Chyrsler

dealer
> about 30 Km ago, at that time they also replaced the carb.
>
>
>



  #3  
Old October 29th 05, 11:49 PM
Daniel J. Stern
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Posts: n/a
Default 1980 LeBaron Carb

On Sat, 29 Oct 2005, nirodac wrote:

> I was at this NG some months ago, this issue is part of that problem.
> Problem; no ported vacuum for dist. Fix from this NG was to replace
> carb. Now the question; Jobber wants to sell me a carb for a 1980 318
> CID, Dodge truck, instead of one for a 1980 318 CID Lebaron. He claims
> the carb is the same except that there is no vacuum connections for the
> carbon canister


He's wrong.
And "remanufactured" carburetors sold through jobbers are garbage.

> jobber claims the carb is heavy duty


Jobber doesn't know what the hell he's talking about.

> can I use this carb in this car,


Yes, but you'd be much better off with a carb that does have the right
ports, especially for the evaporative emission containment system
(charcoal canister etc.).

> Is fuel consumption going to be higher with the truck version of the
> carb


Yes. So will fuel loss from evaporative emissions.

DS
  #4  
Old October 30th 05, 04:40 AM
Ted Mittelstaedt
external usenet poster
 
Posts: n/a
Default 1980 LeBaron Carb


"nirodac" > wrote in message
news:U_N8f.65275$S4.30548@edtnps84...
> I was at this NG some months ago, this issue is part of that problem.
> Problem; no ported vacuum for dist. Fix from this NG was to replace carb.
> Now the question; Jobber wants to sell me a carb for a 1980 318 CID,

Dodge
> truck, instead of one for a 1980 318 CID Lebaron.


There are tons of carbs on Ebay. I bought one last year for my 84 Chevy
Celebrity, it was a feedback carb and the numbers matched exactly, which
was amazing considering the number of variations of that carb that GM used.
While it was a New Old Stock carb I only needed the selonoid from it,
and the carb is still on my shelf in case I ever need it.

If I were you I would find a local carb rebuilder and see if he could drill
the passage you need in your existing carb.

Ted


  #5  
Old November 4th 05, 09:27 PM
nirodac
external usenet poster
 
Posts: n/a
Default 1980 LeBaron Carb

Drilling the hole didn't help, just made things worse. I went with a
rebuilt, the correct one for the car, and now the car runs great, no more
hesitation and smoother (but not perfect) at idle, also doesn't "miss" at
idle as it used to. The rebuilder totally rebuilt the carb, you'd be hard
pressed to tell it wasn't NOS. The finish on the carb looks like new (re
anodized). I checked the ported vaccum port before I bought it, to make
sure it was open. This carb is basic, no feedback control.
What amazes me is that this engine was rebuilt through a local Chyrsler
dealership. They are the ones that installed a 1981 carb in a 1980 car,
removed the lean burn system, then when it didn't work (no vacuum advance,
no ported vaccum) they just left it. It wasn't a matter of poor
adjustments, it was just a wrong part.
The owner at the time was in his 60's, and didn't drive the car much
(preferred is Ram Charger) so didn't notice any performance issues with the
new rebuild, until it failed the emissions test, then the dealer "fixed" the
problem and the car passed.

Had a similar problem with my sons Mazda, three attempts by the local Mazda
dealer to repair carb issues (at $600.00 per fix)(failed emissions tests)
then the owner sold us the car, we replaced the carb and bingo, great
emission test results. Same issue with my Merc., can't these dealers fix
cars any more?

Many thanks to all who gave suggestions for the fix.





"Ted Mittelstaedt" > wrote in message
...
>
> "nirodac" > wrote in message
> news:U_N8f.65275$S4.30548@edtnps84...
> > I was at this NG some months ago, this issue is part of that problem.
> > Problem; no ported vacuum for dist. Fix from this NG was to replace

carb.
> > Now the question; Jobber wants to sell me a carb for a 1980 318 CID,

> Dodge
> > truck, instead of one for a 1980 318 CID Lebaron.

>
> There are tons of carbs on Ebay. I bought one last year for my 84 Chevy
> Celebrity, it was a feedback carb and the numbers matched exactly, which
> was amazing considering the number of variations of that carb that GM

used.
> While it was a New Old Stock carb I only needed the selonoid from it,
> and the carb is still on my shelf in case I ever need it.
>
> If I were you I would find a local carb rebuilder and see if he could

drill
> the passage you need in your existing carb.
>
> Ted
>
>



  #6  
Old November 5th 05, 09:00 AM
Ted Mittelstaedt
external usenet poster
 
Posts: n/a
Default 1980 LeBaron Carb


"nirodac" > wrote in message
news:1vPaf.103011$Io.74511@clgrps13...
> Drilling the hole didn't help, just made things worse. I went with a
> rebuilt, the correct one for the car, and now the car runs great, no more
> hesitation and smoother (but not perfect) at idle, also doesn't "miss" at
> idle as it used to. The rebuilder totally rebuilt the carb, you'd be hard
> pressed to tell it wasn't NOS. The finish on the carb looks like new (re
> anodized). I checked the ported vaccum port before I bought it, to make
> sure it was open. This carb is basic, no feedback control.
> What amazes me is that this engine was rebuilt through a local Chyrsler
> dealership. They are the ones that installed a 1981 carb in a 1980 car,
> removed the lean burn system, then when it didn't work (no vacuum advance,
> no ported vaccum) they just left it. It wasn't a matter of poor
> adjustments, it was just a wrong part.
> The owner at the time was in his 60's, and didn't drive the car much
> (preferred is Ram Charger) so didn't notice any performance issues with

the
> new rebuild, until it failed the emissions test, then the dealer "fixed"

the
> problem and the car passed.
>
> Had a similar problem with my sons Mazda, three attempts by the local

Mazda
> dealer to repair carb issues (at $600.00 per fix)(failed emissions tests)
> then the owner sold us the car, we replaced the carb and bingo, great
> emission test results. Same issue with my Merc., can't these dealers fix
> cars any more?
>


I think in any major city you could count the number of carb specialists
on the fingers of one hand, these days.

The feedback carb in my Chevy works
perfectly right now, I've put time into fixing it, though. I've talked to
mechanics
at one of the local chevy dealers that I've bought parts from and none of
them
have seen one of these systems in for almost 4-5 years now, and they say
they were a bitch to work on when they did see them.

I personally am far more impressed by the carburetors that were engineered
in the 70's and 80's, than a modern fuel injection system today. These
carbs
impress me because of the fact that they worked at all, and worked as
reliably
as they did for so long. Truly marvels of engineering. A fuel injection
system
by contrast, is a lot simpler from a mechanical standpoint.

Ted


 




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