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220cummins

Pedigreed Bulldog
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Posts posted by 220cummins

  1. It was mandated in November of 2007 that the emissions of diesel engines had to get a lot cleaner. The common solution was a particulate filter in the exhaust system that trapped pollution (particulates). As the filter clogged up, the trucks would run regeneration cycles to burn up this matter. This was accomplished by running a fuel line to a 7th injector in the filter assembly and burning up the particulates at a very high temperature. This would often require the truck to pull over off of the road an would take a good deal of time. This was all if the system worked correctly. There are many of cases where the truck is rendered dead on the side of the road or in safe mode(no power). In 2012 the newer more strict emissions standard came along forcing manufactures to abandon the diesel fueled injector in favor of burning urea to clean the filter. This system is in no means trouble free, but seems to have less bugs then the 2007 thru 2012 trucks. Also this wasn't a mack specific problem, it was industry wide(forced cat into a hiatus from the truck engine business)

    The 7th injector hasn't been replaced. It still places fuel in the exhaust to regen the dpf. The SCR aftertreatment is downstream from the DPF lower the NOx emissions even more.

    http://volvoscr.com/default.aspx?pageid=3362

  2. It is a one of a kind being made for the plant. It is a GU712, all wheel drive, MP-8, 800 hp, 2800 lbs. of torque, and is having a custom pickup bed installed.

    Pretty impressive for a 13L. Do you know what's all done it? It isn't the new common rail is it? What trans is in it? I think if this cab option were in production it would be a good fit for municipalities and fire/rescues. Attached are an additional picture of it and an explanation of it. I guess Volvo is investing in a modernization of Macgunie and changing the name to Lehigh Valley Operations (LVO). Guess this is just another death nail for the "Old Mack"

    post-262-0-66057000-1446152565_thumb.jpg

    post-262-0-40878000-1446152580_thumb.jpg

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  3. Check your driveline for wear or play and check your tires. I had a Freightliner FL70 box truck do the same thing. It was the drive tires out of balance. I jacked it up and spun the wheels slowly. The wheel went back the opposite way I spun it. I put a couple balance bags in the the tires and it made it for away.

  4. Aways do the cups as well. And they will almost always be bad. I think the proper name for the tool required to set the cups is a "SWEDGE TOOL" and it is specific to the injector cup. McMahon in Nashville is good. Legacy in Somerset and Bedford pa are really good. Any of the rr locations in oh are good. M&k in Michigan are ok but are a bit high for labor. Susquehanna near Williamsport pa are good.

    And yes the inectors will need programmed. Como rail in 2017. Can't wait till 18 when they finally get the bugs worked out.,I'm placing my order now.. lol

    Two different twos for swedging (installing) cups. One for copper cups and one for stainless. Stainless are the replacement and current production. I'm curious to see common rail setup I keep hearing about.
  5. You are just talking about injectors; the cups should be ok

    The only problem I would have if something has to be programmed into computer; I'm sure it is but could I put them in & then take it to the dealer & let them program it; or have them make a service call & come to me & program it; I really rather do it myself; My dealer is in memphis & they just don't have good attitude; at least the mechanics I've talked to & service manager is no better; that's just my opion. Thanks

    Cups come with the injector kit. Change them when you change the injectors cause they are usually messed up from the injector "walking" around in the cup

  6. Feather edge the clear as best as you can and apply very thin coats of whatever you choose. When you have a hard line and put a thick coat of something over top of it it tends to lift and crinkle. The solvents in the top coat eat the old finish. Multiple Very thin coats would be the way to go. You could always get the bulldog remade and then sand/strip the entire facedown to the veneer, re apply new bulldog, then top coat.

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