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 Post subject: Re: My 1981 MACHO
PostPosted: Thu Sep 15, 2011 8:23 am 
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Location: Loveland, CO
Dodge probably used them till they ran out, eh?


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 Post subject: Re: My 1981 MACHO
PostPosted: Thu Sep 15, 2011 11:33 am 
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Location: The "PALOMINO Ranch", Central California.
yep

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 Post subject: Re: My 1981 MACHO
PostPosted: Sat Sep 17, 2011 3:46 pm 
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Location: The "PALOMINO Ranch", Central California.
engine pictures....
correct air cleaner is a 1 year only piece and same for some of the emissions stuff...
this one pictured is on a 81 Big Horn with 318 and cal emissions...


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1981 big horn 082710 013.jpg
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1981 big horn 082710 015.jpg
1981 big horn 082710 015.jpg [ 1.44 MiB | Viewed 802 times ]
1981 big horn 082710 014.jpg
1981 big horn 082710 014.jpg [ 2.36 MiB | Viewed 802 times ]

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 Post subject: Re: My 1981 MACHO
PostPosted: Sat Sep 17, 2011 3:49 pm 
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Location: The "PALOMINO Ranch", Central California.
hope that helps some...sorry about the un-cleanlyness of the engine compartment, it is in as found condition still....

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 Post subject: Re: My 1981 MACHO
PostPosted: Sun Sep 18, 2011 12:01 am 
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Location: Truckin thru NEVADA
How are you venting your drier?? :lol:


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 Post subject: Re: My 1981 MACHO
PostPosted: Sun Sep 18, 2011 1:33 am 
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Location: The "PALOMINO Ranch", Central California.
with the hose from YOUR macho :lol:

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 Post subject: Re: My 1981 MACHO
PostPosted: Sun Sep 18, 2011 12:03 pm 
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That SUX

I'll have to go to Home Depot and get some more parts for my truck. :D


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 Post subject: Re: My 1981 MACHO
PostPosted: Sun Sep 18, 2011 12:33 pm 
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Location: Loveland, CO
Thanks for the pictures! Yesterday we took the girlfriend's car in for emissions -- and while there I asked the assistant manager (at the state-run facility) what all an '81 needed emissions wise ('81s and earlier simply get a 2-speed tailpipe test). She claims that it needs all of the emissions equipment present on the sticker in the engine bay. Now in Denver there are about 10 independent (non-state run) emissions shops for 1981 and earlier vehicles -- supposedly they're more lax and as long as the vehicle passes (regardless of equipment) you're good to go.

I took some time examining different '81/'82 trucks at the yard yesterday and my truck really has none of its emissions equipment left. I pulled a sticker off of an '81 D300 crew cab (HDC) and it shows a much more limited amount of emissions junk.

I then looked up what all they had put into my truck -- all purchased in late '06, installed mid-February '07.

The first being the engine. A re-manufactured unit from Checker/O'Reilly: http://www.oreillyauto.com/site/c/detail/PTQ1/DD11.oap

They also installed an Edelbrock Performer-Plus camshaft kit:
http://www.oreillyauto.com/site/c/detail/EDB8/2177.oap

And Edelbrock Performer Intake (non-EGR):
http://www.oreillyauto.com/site/c/detail/EDB1/2176.oap

Along with all the invoice shows a new water pump, thermostat, fuel pump, starter, belts, coolant hoses, etc.

I have no invoice for the Edelbrock carb, Mopar Peformance air cleaner/valve covers, radiator, exhaust (dual straights with glass packs) or rebuilt transmission.

As per the Air Care Colorado website, is there any reason why the truck couldn't pass with all of it's new/current equipment and without all of the original emissions equipment? The standards for an '81 are 1.2 parts per million for carbon monoxide and 220 parts per million for hydrocarbons. '81s and earlier aren't checked for NOx (oxides of nitrogen).

I know they at least do a mirror check for catalytic converters -- and honestly I'd prefer to go back to a more stock exhaust system. With that being said, I see RockAuto has a lot of reproduction exhaust components. I'd probably do just a Y into cat, into muffler as I don't see any reason to hunt down a mini-ox since it doesn't have the rest of the original emissions/heat valve stuff anyhow.

Thoughts?


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 Post subject: Re: My 1981 MACHO
PostPosted: Sun Sep 18, 2011 1:40 pm 
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Those emission test standards for your truck are for catalytic equipped trucks.
I noticed you have dual exhaust pipes coming out back under the bumper. The truck came with single exhaust with a catalytic coverter hung under the passinger side back floor boards between the transfer case and RS frame rail. I would say the converter is long gone because of the modified exhaust..............Those Eldelbrock Carbs run rich from the "get go".........So the only way to get the truck to pass the emission standards is to lean out the idle air fuel mixture untill the truck "almost" runs rough and install aftermarket left & right catalytic converters on the dual exhaust pipes and hope for the best!


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 Post subject: Re: My 1981 MACHO
PostPosted: Sun Sep 18, 2011 2:01 pm 
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Location: Loveland, CO
That I understand -- I'm seriously considering going back to a stock setup -- the straight pipes and glass packs really aren't my thing. has anyone ever use the AP or Walker exhaust pipes/muffler/cats? They're all exact fit and I could in essence have a stock looking/sounding exhaust.

I'll try leaning out the carb once it's time for emissions -- and/or when I figure out exactly what I'm doing with the exhaust. Since I have no records I wonder if it's even jetted for altitude -- although where the truck was and where I am are less than 200 feet difference in altitude.


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