Dirtymilkman Posted June 15, 2018 Share Posted June 15, 2018 https://minneapolis.craigslist.org/csw/hvo/d/freightliner-argosys/6610539311.html 1 Quote Link to comment Share on other sites More sharing options...
Maxidyne Posted June 15, 2018 Share Posted June 15, 2018 Well, pre 2004 and later emissions... Quote Link to comment Share on other sites More sharing options...
Hobert62 Posted June 16, 2018 Share Posted June 16, 2018 My dads 2000 w900 with a signature isx has no emissions including an egr. 1 Quote Link to comment Share on other sites More sharing options...
Maxidyne Posted June 16, 2018 Share Posted June 16, 2018 There have been diesel emissions standards since the 1980s and every truck diesel sold in the U.S. had to meet them. Quote Link to comment Share on other sites More sharing options...
Popular Post Mack Technician Posted June 16, 2018 Popular Post Share Posted June 16, 2018 I think many, myself included, think of a truck as pre-emissions @ < 2004. The emissions before 04 were subtle, inexpensive, logical, repairable, removeable and basically non-invasive to successfully pulling a load to a destination. Maybe somebody has an example of a full fledged OEM emissions debacle in a pre 04, but I don’t have one. My buddy has a 70’s Mack Manure spreader/tanker with an E6 237. I rebuilt it on the floor with a modern engine kit from a non-OEM vendor. I layed the pistons next to each other and the ring lands were moved up right tight to the crown on the new pistons. Raised a question against the manufacturer. Ends up they wanted to get rid of cold burn on the piston sides to reduce emissions. So progressive emission updates were being made even for the 70’s engine. Did it ruin anyone’s day? Nope, ran like a beast till he retired and he was so happy with it he never sold it in case the kids needed help. Looks out the window at it while drinking his morning coffee. 3 Quote Link to comment Share on other sites More sharing options...
Popular Post terry Posted June 16, 2018 Popular Post Share Posted June 16, 2018 12 minutes ago, Mack Technician said: I think many, myself included, think of a truck as pre-emissions @ < 2004. The emissions before 04 were subtle, inexpensive, logical, repairable, removeable and basically non-invasive to successfully pulling a load to a destination. Maybe somebody has an example of a full fledged OEM emissions debacle in a pre 04, but I don’t have one. My buddy has a 70’s Mack Manure spreader/tanker with an E6 237. I rebuilt it on the floor with a modern engine kit from a non-OEM vendor. I layed the pistons next to each other and the ring lands were moved up right tight to the crown on the new pistons. Raised a question against the manufacturer. Ends up they wanted to get rid of cold burn on the piston sides to reduce emissions. So progressive emission updates were being made even for the 70’s engine. Did it ruin anyone’s day? Nope, ran like a beast till he retired and he was so happy with it he never sold it in case the kids needed help. Looks out the window at it while drinking his morning coffee. Them early series of engines were bullet proof, with a little care will run forever!! terry 2 1 Quote Link to comment Share on other sites More sharing options...
h67st Posted June 16, 2018 Share Posted June 16, 2018 Yes, I rebuilt a lot of air fuel ratio units on 3406 Cats back in the 90s, that was pretty much the extent of the emission controls on them. Quick, easy rebuild and back on the road you go. 1 Quote Link to comment Share on other sites More sharing options...
Dirtymilkman Posted June 16, 2018 Author Share Posted June 16, 2018 I remember one of dad's old Mack's had a label on the turbo, it said something about noise emissions. 1 Quote Link to comment Share on other sites More sharing options...
Lmackattack Posted June 17, 2018 Share Posted June 17, 2018 some of the turbos said muffling device casted into the housing. You could run a straight stack legally with them. 1 Quote Link to comment Share on other sites More sharing options...
Timmyb Posted June 17, 2018 Share Posted June 17, 2018 Yes Maxidyne, you are 100% right. Lucky most of us understood exactly what he was saying. Quote Link to comment Share on other sites More sharing options...
Freightrain Posted June 17, 2018 Share Posted June 17, 2018 My 237 has "muffling device" tag on the turbo. Being a firetruck engine I see why, as early firetrucks were typically muffler delete....ie:loud. 1 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment Share on other sites More sharing options...
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