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Topic: 5.0 (Read 4813 times) previous topic - next topic

Re: 5.0

Reply #15
Decided to resurrect this thread instead of making a new one.

I'm yanking the smog stuff on my 5.0 in preparation to get it running again. Had to hack up the line running to the Y-pipe, so I figured I'd just lose the smog pump now.

If that thing's a check valve, and won't let anything go forward of it, (toward the pump) should I be OK just capping this off for now in front of the valve? I would guess "yes", but I want to make sure. I'll do a cleaner removal of this part later, after the car is running.

EDIT: , cheapest smog pump eliminator pulley kit is like $47 from Summit.

Re: 5.0

Reply #16
well, to update. i ended up unbolting the tube from behind the heads. i cut the tubes off leaving enough to vice crimp the leftover shut and bolted them back on. (BTW, crystal was right, make sure they are covered correctly or it will sound like a truck.) i left the smog pump on as an idler for now cause its cheeper than spending money on an eliminator kit. its a little bit noisy but acceptable. i removed the checkvalves and all the tubing from the air pump all the way to my h pipe. (crimped the tube shut. now h pipe but same as y pipe). everything seems cool accept with no emissions equip and no cats the car is a little stinky...that could be from my header to hpipe  leaking though.
:america: 1988 Thunderbird Sport, Former 4.6 DOHC T56 conversion project.

Rest of the country, Welcome to Massachusettes. Enjoy your stay.

 
Halfbreed... Mango Orange Y2K Mustang GT
FRPP complete 2000 Cobra engine swap, T56 n' junk...
~John~

Re: 5.0

Reply #17
I was thinking about taking the longest piece of hose from the existing smog setup and connecting that right to the outlet on the smog pump, and then diverting that hose under the body or something. Not sure that'll help the noise any, but hey.. it's not like it's going to cost me anything to try it.

What about all those little vacuum connections? (in the very lower left of the pic in your first post.. under there) I followed the lines back, and a line ends up going into the back of the quarter panel area. Do you know what that line is? I was thinking of just disconnecting all that stuff all the way up to the intake, but I want to figure out what that one line does, first.

Re: 5.0

Reply #18
well, i just disconnected them and tucked them away just in case i needed them. no ill effects yet. the smog pump isnt that niosy. as specially compared to the  clutch fan.
:america: 1988 Thunderbird Sport, Former 4.6 DOHC T56 conversion project.

Rest of the country, Welcome to Massachusettes. Enjoy your stay.

 
Halfbreed... Mango Orange Y2K Mustang GT
FRPP complete 2000 Cobra engine swap, T56 n' junk...
~John~

Re: 5.0

Reply #19
They make plugs that screw into the back of the head where the tube went in. Thats what I have on my car.

Re: 5.0

Reply #20
yeah, but why take the time to order or go to the store and spend the money if the mod is free quick and easy? unless of course its a show car. but thats just my opinion.
:america: 1988 Thunderbird Sport, Former 4.6 DOHC T56 conversion project.

Rest of the country, Welcome to Massachusettes. Enjoy your stay.

 
Halfbreed... Mango Orange Y2K Mustang GT
FRPP complete 2000 Cobra engine swap, T56 n' junk...
~John~

Re: 5.0

Reply #21
It just gets rid of a lot of trash hanging off the back of the heads. I don't think they cost much, although I don't really recall, I think mine came with a motor rebuild kit. You could just use a bolt or a pipe plug I think.

Or get a good set of heads.... :D

Re: 5.0

Reply #22
bringing this up again i was poking around under the hood trying to set things to rights. (yeah John, the kids at my school messed some stuff up pretty bad putting that tranny in) so I see that this check vave is disconnected from the down tube to the exaust, and I wanted to make sure this wasn't bad for anything (other than ventin exaust gasses back into the engine compartment) my guess is not after reading this. yes btw my car is stock in all respects and I would like to continue passing my emmissions

Re: 5.0

Reply #23
its definetly gotta be conected and working to pass MA state inspection. its probably noisy too, which is annoying. shouldnt actualy hurt anything though. hows the car runnin otherwise Tim? let me know if theres anything i can help ya with...
:america: 1988 Thunderbird Sport, Former 4.6 DOHC T56 conversion project.

Rest of the country, Welcome to Massachusettes. Enjoy your stay.

 
Halfbreed... Mango Orange Y2K Mustang GT
FRPP complete 2000 Cobra engine swap, T56 n' junk...
~John~

Re: 5.0

Reply #24
I have a story on this very part.  10 years ago I changed the plugs on my 5.0---different ford 1989 vehicle.  This part gives you fits reaching around it for the back plug or two.  You have to press the back of your hand on it at times to work back there.  Not long after that plug job, I began getting an exhaust fume smell in the passenger compartment--for the longest time this went on.  I made no connection to what could have happened.  More than a year or 2 later, I found that this part split in two--you wouldn't see the break unless you pressed upon it.  The exhaust leached out and backflowed (somehow) up into the hood air intakes for interior air.  The story all came together then for me.  After I bought ler tape and wrapped it closed, I have not had any exhaust fume smells inside the car.  It didn't happen 100% of the time--but often enough that made me wonder what was wrong with my vents--I actually began shutting off vent use because of the smell.  I should post a picture of this here as it presently looks.  Years ago the auto makers dropped the footwell vents (I had a '64 Impala), hell, this emission setup is far more dangerous--and I am sure there are other split ones out there.  Yeah, if I knew what I was doing, I would rip it out too.   

John R

Re: 5.0

Reply #25
well the car was running pretty good. notice the past tense. the new trans got put in by the auto mech dept. at the voc. school I go to. It just seemed easiest cuz it was cold outside and I would've had to do it in my driveway otherwise. I gave them specific instructions for certain things I wanted done. They took 3 weeks to do it and somehow they managed to screw up more than they fixed. It had seemed alright but the exaust leaks now, i've developed a bad trans fluid leak from (get this) the pan, the cooling? lines AND the fill tube which has become horribly loose. I now need to replace the rear engine seal and, this will make you laugh, the first thing I had to fix (back a bit) was the neutral safety switch electrial coupling. they shattered the keyed shell and had it installed bakwards! It would only start in reverse and I got reverse lights in park and neutral!
  Anyways sorry for the ranting and raving but it bothers the  out of me.Thy are supposd to be learning how to be professional's. I'll kep you posted how it comes along but its gonna be slow thats for sure.

Re: 5.0

Reply #26
I can see students making mistakes, but shouldn't their instructor be correcting or pointing out those mistakes to students to correct before the car is returned to it's owner?  Don't blame the students.  Blame the moron the school hired to teach them.
-- 05 Mustang GT-Whipplecharged !!
--87 5.0 Trick Flow Heads & Intake - Custom Cam - Many other goodies...3100Lbs...Low12's!

Re: 5.0

Reply #27
Quote
Blame the moron the school hired to teach them.


right on with that one. the instructor should have never let it go like that. i know its sometimes tough to get the means to do a big project but, tim, you might be better off to buck up and pull the tranny and start over. at least the weathers on your side now. i dont know realy what else to say. hope it works out.
:america: 1988 Thunderbird Sport, Former 4.6 DOHC T56 conversion project.

Rest of the country, Welcome to Massachusettes. Enjoy your stay.

 
Halfbreed... Mango Orange Y2K Mustang GT
FRPP complete 2000 Cobra engine swap, T56 n' junk...
~John~

Re: 5.0

Reply #28
Quote
this check vave is disconnected from the down tube to the exaust, and I wanted to make sure this wasn't bad for anything (other than ventin exaust gasses back into the engine compartment)
As long as the "down tube" is capped off, you won't get gassed. And there's 2 check valves, one to the heads, one to the exhaust.

If the ECU decides the system needs air from the smog pump, it tells the bypass valve (blue) to stop dumping the air outside and send it to the diverter (red), then it decides who needs it the most... the heads (yellow path) or the converter (green path).

And of course, a picture....  :D

.
Death awaits you all with nasty, big, pointy teeth.

1988 5.0 Bird, mostly stock, partly not, now gone to T-Bird heaven.
1990 Volvo 740GL. 114 tire-shredding horsies, baby!

Re: 5.0

Reply #29
Definitely smog pump . Just get rid of it. One less hassle to worry about. I got rid of mine and just put bolts in the back of the head where the pipe went in
:birdsmily: Nate Wenck
Carroll IA
nwenck@msn.com
07 Suzuki Boulevard C50T
2003 Ford F-150 Supercrew