SrA_Heise Posted May 22, 2007 Share Posted May 22, 2007 Is it possible to run a cat delete pipe on the 6.0's for off highway usage like some of the 7.3's had? We have several on base in aircraft tugs that keep plugging up the cats due to high idling amounts even with the latest flashes from ford. One is an 03, 04, 05 and one is an 07. We end up at ford about once a week getting egrs replaced too lately. Quote Link to comment Share on other sites More sharing options...
LARRY BRUDZYNSKI Posted May 22, 2007 Share Posted May 22, 2007 What size trucks are you dealing with? F350-F550 or F650-F750? The reason I ask is that the smaller trucks don't list a cat. delete pipe, doesn't mean that it doesn't exist, we may be able to get a hold of a export truck that is not outfitted with a cat. possibly a truck destine for another country.If it's a 650-750 they come with a cat/conv muffler on them and some listings do show a standard setup w/o cat. Quote Link to comment Share on other sites More sharing options...
SrA_Heise Posted May 23, 2007 Author Share Posted May 23, 2007 These are all F-350's. They never leave the flightline. Just idle around and tug planes, equipment etc.... they load up and have lots of egr probs, and plug up the cats. Ford gave them the newest and greatest flashes, but still being a pain. Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted May 23, 2007 Share Posted May 23, 2007 The obvious answer is to stop idling these trucks. You are seeing first hand the devastation extended idling can cause. I do recall though that this is not an option for these trucks due to the service they see. Have you considered setting up the secondary elevated idle? Instead of a cat delete pipe which would be most appropriate, and as a temporary measure, why not "clean" /forums/images/%%GRAEMLIN_URL%%/wink.gif your clogged cat to make it drivable until it can be repaired? /forums/images/%%GRAEMLIN_URL%%/whistle.gif Quote Link to comment Share on other sites More sharing options...
DieselD Posted May 23, 2007 Share Posted May 23, 2007 I have problems with these trucks as well. we have a fleet of 350s from the air force base that are used as tugs. they are limited to 35mpg(found that out the hard way pulling into traffic!) they also use a grade of bio or whatever is on base so that doesnt help. they never get enough heat or boost to clean themselves out. We has one that was so extreme that it burned a whole in one of the pistons. I dont think these will ever be fixed with this type of use. Quote Link to comment Share on other sites More sharing options...
SrA_Heise Posted May 25, 2007 Author Share Posted May 25, 2007 Well the elevated idle on those isnt really an option. They start, idle from plane to plane then get turned off. They arent allowed to idle when there isnt someone in them. BTW we dont use bio here yet, straight dino. I love ford, I have to 1997 7.3's in my driveway, but our old dodge tugs with the 5.9 12 valves were awesome for this task. By cleaning the cat do you mean a beat run off base? Quote Link to comment Share on other sites More sharing options...
WGLR13MWZ Posted May 28, 2007 Share Posted May 28, 2007 SrA, You can use an addative like the PM-22-A. It will not eliminate your problem, but it will extend the servicing of your EGR some. Rule of thumb is, if the vehicle has a license plate on it you can not remove the Diesel Oxygenation Catalyst. Quote Link to comment Share on other sites More sharing options...
SrA_Heise Posted May 28, 2007 Author Share Posted May 28, 2007 Well no license plate, Ill keep ya all updated if the powers that be come up with any ideas. Nate Quote Link to comment Share on other sites More sharing options...
Jim Warman Posted May 29, 2007 Share Posted May 29, 2007 A suggestion that may not sit well with some.... but considering the use these trucks see, we could categorize them as off road machinery and, perhaps subject them to unconventional alternatives to nagging repairs.... While it would be nice to keep any government in line as a "good corporate citizen", your particular circumstance is going to make that very difficult for these truck (oops, I meant this equipment). Replacing the cat with a straight pipe and disconnecting the EGR connector for your tugs wouldn't have the far reaching effects that doing the same to a street driven daily driver would. Not to mention, with what is probably coming out of the tailpipes of your airplanes, the additional stuff from the tugs probably isn't going to amount to a hill of beans. Two FWIWs..... There are times when a suitable solution to a concern may be a giant leap sideways.... Personally, I don't have a problem with "some" vehicles being exempt from some emissions standards.... SOME emissions standards. Emergency response vehicles would be a big one - and I'm not talking about the privately own, light festooned Bronco owned by a volaunteer firefighter. At the same time, I wouldn't want to be riding in an ambulance that decides <now> is a good time for the VGT to crap out or the EGR to hang open. The other FWIW.... here in sunny Alberta, off road construction equipment and logging machinery are still allowed to utilize R-12. Not one of my favourite government decisions and the vibration induced failures of these systems can be worrisome. But the affected "population" is relatively small and, if we are lucky, the lost R12 wont be too much of a burden on our ecosystem.... at least nowhere near as bad as when we were using CFCs as spray bomb propellant. I still have 3 or 4 Halon fire extinguishers around my place - I can assure everyone that, if I am forced to use one, I probably wont be thinking of the environment as much as my stuff.... If Bubba wants to defeat the emission controls on his daily driver, we should stuff his long-neck up his whazoo and stick his head up his smokey tailpipe.... But when it comes to life safety or the defence of our nations, I think we can bend the rules a little bit. Quote Link to comment Share on other sites More sharing options...
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