viven44 Posted April 17 Share Posted April 17 That's good to hear those cams run well. The 255DEH is similar to the MTF5, a little faster ramp rate and cut on a 110 LSA instead of 112 but pretty much the same lift and duration @.050". Should run well with the heads, intake and exhaust I already have. Random question of the day. What is that air inlet in my air cleaner assembly? It is vacuum actuated. When vacuum is applied it closes. Is that a hot air intake that is supposed to use engine bay air until things warm up ? This is from a 86 460. Small blue circle shows vacuum port and large blue circle shows the air inlet I’m asking about Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted April 17 Share Posted April 17 Random question of the day. What is that air inlet in my air cleaner assembly? It is vacuum actuated. When vacuum is applied it closes. Is that a hot air intake that is supposed to use engine bay air until things warm up ? This is from a 86 460. Small blue circle shows vacuum port and large blue circle shows the air inlet I’m asking about It opens at WOT, when the temperature controlled snorkel may not provide 700+ CFM Vacuum should go to a colored velay valve by the dizzy, and then back to the motor inside the plastic scoop. Link to comment Share on other sites More sharing options...
85lebaront2 Posted April 17 Share Posted April 17 It opens at WOT, when the temperature controlled snorkel may not provide 700+ CFM Vacuum should go to a colored velay valve by the dizzy, and then back to the motor inside the plastic scoop. That is my emission label from Darth, it shows the routing and colors for the vacuum rat's nest. Link to comment Share on other sites More sharing options...
viven44 Posted April 17 Share Posted April 17 That is my emission label from Darth, it shows the routing and colors for the vacuum rat's nest. Thanks all! I am not able to figure out where the air cleaner is in the vacuum diagram. The WOT explanation makes sense. My goal is to keep the vacuum lines to a minimum. If I imagined a 14” round after market air cleaner it is quite wide open all the time. Similarly, Could I leave vaccum unplugged to that valve and leave that inlet open always? It’s obviously pre-filter so should be ok as far as getting clear air. My 84 460 doesn’t have that inlet Link to comment Share on other sites More sharing options...
viven44 Posted April 17 Share Posted April 17 That is my emission label from Darth, it shows the routing and colors for the vacuum rat's nest. Curious, how did you get a scanner-like image of that ? Was it just a camera pointed just right under the hood or is that from a valve cover set on a scanner ? Link to comment Share on other sites More sharing options...
mat in tn Posted April 17 Share Posted April 17 Curious, how did you get a scanner-like image of that ? Was it just a camera pointed just right under the hood or is that from a valve cover set on a scanner ? thanks for asking this question as I just learned something I'm sure I will need to know soon, when I get done building the 460 for this f350. same air cleaner. but all vac lines are long gone. I will be sorting out which I must do to make it run, then run its best. Link to comment Share on other sites More sharing options...
85lebaront2 Posted April 18 Share Posted April 18 Curious, how did you get a scanner-like image of that ? Was it just a camera pointed just right under the hood or is that from a valve cover set on a scanner ? If you notice the VIN number is written on it. The local Ford dealer ordered it as a replacement for me and I scanned it before I installed it. Link to comment Share on other sites More sharing options...
viven44 Posted April 18 Share Posted April 18 If you notice the VIN number is written on it. The local Ford dealer ordered it as a replacement for me and I scanned it before I installed it. Thats great. How long ago was that? My local dealer's support level on these old trucks is pretty poor, if they can get me a sticker today I would buy it! Link to comment Share on other sites More sharing options...
BigBrother-84 Posted April 18 Share Posted April 18 Thats great. How long ago was that? My local dealer's support level on these old trucks is pretty poor, if they can get me a sticker today I would buy it! Installed a brand NOS speedometer w/tripometer, km/h. Brand new truck, zero km (after a short ride to the garage for summer tires, has now something around 18km). :nabble_: Thanks Gary! Really nice piece I wasn’t able to find for sale! I know we can adjust the km, but anyway I do not know Big Brother’s real mileage. So let’s say it’s a gift for his soon 40 years birthday! Link to comment Share on other sites More sharing options...
85lebaront2 Posted April 18 Share Posted April 18 Thats great. How long ago was that? My local dealer's support level on these old trucks is pretty poor, if they can get me a sticker today I would buy it! Probably 5 years ago, dealer has changed hands since then. Link to comment Share on other sites More sharing options...
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