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Re: ECS tube in trunk, what years?
[Re: 1_WILD_RT]
#1013929
06/15/11 11:29 PM
06/15/11 11:29 PM
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Joined: Feb 2009
Posts: 3,821
New State
kidmopar
master
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master
Joined: Feb 2009
Posts: 3,821
New State
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Quote:
Quote:
ECS was 1970 only.
The NOX system started in 1971.
I do not know if the tubes were different or not between the two years, but I bet someone here will know.
That may be how the books spell it out but really ECS is about evaporative emission control... Which is what the tube in the trunk is for...
NOX is about reducing Oxides of Nitrogen.... Which is accomplished by reducing combustion temperature... So the components related to the NOX system are engine related... Timing control initially, then camshaft & compression, EGR came a couple years later...
That Randy .... He's so smart!  Your exactly right! 'Tube' in trunk was the evap. system in California Only? My '71 Challenger R/T has it as it was sold in San Leandro. 
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Re: ECS tube in trunk, what years?
[Re: Steve340]
#1013931
06/17/11 09:28 AM
06/17/11 09:28 AM
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Joined: Jan 2003
Posts: 12,437
Warren, MI
71TA
OP
I Live Here
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OP
I Live Here
Joined: Jan 2003
Posts: 12,437
Warren, MI
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Well now I'm clear  I was looking to update my gasket sets. I'll probably add that oval white foam gasket to all my 70 & 71 kits. PS My 71 Challenger has the ECS thing in the trunk. MI car all its life.
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Re: ECS tube in trunk, what years?
[Re: gtx6970]
#1013935
06/17/11 04:07 PM
06/17/11 04:07 PM
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Joined: Jan 2003
Posts: 12,437
Warren, MI
71TA
OP
I Live Here
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OP
I Live Here
Joined: Jan 2003
Posts: 12,437
Warren, MI
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Quote:
1970 Federal emissions car
Good info Bill. I don't think i ever saw that 2 grommet plate.
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Re: ECS tube in trunk, what years?
[Re: 1_WILD_RT]
#1013936
06/17/11 04:36 PM
06/17/11 04:36 PM
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Joined: Jan 2003
Posts: 21,528
N.E. OHIO, USA
A12
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 21,528
N.E. OHIO, USA
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Quote:
Quote:
ECS was 1970 only.
The NOX system started in 1971.
I do not know if the tubes were different or not between the two years, but I bet someone here will know.
That may be how the books spell it out but really ECS is about evaporative emission control... Which is what the tube in the trunk is for...
NOX is about reducing Oxides of Nitrogen.... Which is accomplished by reducing combustion temperature... So the components related to the NOX system are engine related... Timing control initially, then camshaft & compression, EGR came a couple years later...
The term that is still used to this day is EVAP System which contains all of the sources of evaporation emissions (i.e., fuel tank, carburetor float bowls, crankcase/valve covers,) when the engine is off and filters anything contained or captured through carbon (canister usually). How much EVAP is determined by a "SHED" test after the FTP is run. When the engine is running the evap emissions is directed into the engine usually at the intake manifold or carburetor/throttle body. I think that's what's being discussed here.........probably wrong as usual  Is a carbon canister a part of this system being discussed?
MikeR
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Re: ECS tube in trunk, what years?
[Re: gtx6970]
#1013938
06/17/11 09:45 PM
06/17/11 09:45 PM
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Joined: Feb 2004
Posts: 7,196
Harrisburg, Pa.
screamindriver
master
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master
Joined: Feb 2004
Posts: 7,196
Harrisburg, Pa.
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Quote:
1970 Federal emissions car
Here's another pic of the 70 E body trunk plate/lines....The 70 routing looped in the trunk and emptied fuel into the frame rail....No link to the engine bay or vacuum controlled devices until later years...So basically nothing for emission/vapor control...No wonder California did'nt go for it !!
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Re: ECS tube in trunk, what years?
[Re: gtx6970]
#1013940
06/18/11 10:25 AM
06/18/11 10:25 AM
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Joined: Dec 2007
Posts: 18,157
Mass
DAYCLONA
I Live Here
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I Live Here
Joined: Dec 2007
Posts: 18,157
Mass
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Quote:
Then all 1971 cars have the larger 1970 style ecs tube. correct ?
Neither one of my 71 E bodies have the trunk tube (ECS), just the vent tube on the passenger inner fender (CAP if IIRC?) going back to the gas tank
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Re: ECS tube in trunk, what years?
[Re: DAYCLONA]
#1013942
06/18/11 02:44 PM
06/18/11 02:44 PM
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Joined: Jan 2004
Posts: 27,347
Today? Who Knows?
1_WILD_RT
Management Trainee
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Management Trainee
Joined: Jan 2004
Posts: 27,347
Today? Who Knows?
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In 70 & 71 the fuel vapors were stored in the engine crankcase.. Generally the system worked but a stuck float or a bit of debris under a needle & the crankcase would be filled with fuel.... Also there have been cases where the fuel vapors combust causing the valley pan to bulge up & in sever cases the oil pan fails... Starting in 72 Chrysler went to the charcoal canister... Much better idea..
"The Armies of our ancestors were lucky, in that they were not trailed by a second army of pencil pushers."
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