GT40p, Lincoln Logs and #5 plug

[zoomie]

http://www.cjponyparts.com/product.a...cd2=1289052702 something like these i would suppose

[P72Ford]

Im using those on my marquis and they work great, easy clearance all around and you don't need to use 90* boots or anything. Only downside is the price.

Thanks, Mark. I know they're expensive... but they already came on the car; I was just making sure they wouldn't still be a nuisance.

plenty of room, and those are the ceramic coated ones i installed on there

[88grandmarq]

Their certainly not as good as stock mustang shorties. But their the best direct bolt in available, even if they flow probably about the same as the stock manifolds, their alot lighter. And better looking.

Hope I don't need to do plugs on the 89 any time soon.

I don't remember having any clearance issues with the #5 plug. however I did use a brass drift and 4lb hammer to dimpled the pipe around the #5 and #6 tubes before I installed the manifold. it wasn't anything substantial. I used stock Autolite plugs along with a 5/8" plug socket that has a built swivel on the end, the plug was removed and installed several times with out any problems.

90 Degree plug boots were required on #5 and #6 spark plug to keep from burning on the manifold.

[Neal 97 250]

Update with questions

Thank you, Thank you, Thank you soooo much.
I cut an old socket off. Shortened it on both ends quite a bit and cut a slice out of the side of it.
It worked like a champ on the plugs.
Kudos to you guys.

Here is an updated pic. The intake is just sitting on the top for now but you get the gest.




OK now for a couple of questions.
There is a what looks like a vacuum valve on the fuel rail. What should I do with this? Vacuum all the time or not? Here's a pic



Something else, There is a sensor on the lopo intake that is not there on the new Explorer intake. What is this for and what should I do with the plug? It is the one in the center of the pic. Here is the pic:



One more question, should I put a full vacuum to the oil fill tube? In addition to the PCV?
Here's a pic:

[zoomie]

hmmmm might b act sensor

[Neal 97 250]

OK maybe I feel stupid but what is the ACT sensor and what does it do?
Surely there is another option than drilling and tapping????

[pantera77]

OK maybe I feel stupid but what is the ACT sensor and what does it do?
Surely there is another option than drilling and tapping????

Throw it in your airbox. That's where mine is.

[Neal 97 250]

I can do that. Is it an air temp sensor???

[Neal 97 250]

What about the vacuum to the oil filler tube??? Should I do it or not? I have a PCV on the rear of the intake. I was thinking just filtered connection like a filter on the valve cover?
And the vacuum connection/valve on the fuel rail??? What is that and should I provide it with a constant vacuum?

[1990LTD]

The one with the red hard plastic hose? That's the fuel pressure regulator...it needs constant vacuum yes

[gadget73]

its the air charge temperature sensor. There are two answers here. One is throw it in the airbox. The official correct way is to drill and tap the lower intake to accept it. The ECM doesn't go into long-term learning strategy unless that sensor hits 120 degrees, which it will never do in the airbox. Does it really matter? Shit if I know. I put mine back in the intake trying to fix a problem, and it didn't really do much.


its a 3/8 NPT tap if I remember correctly. Only earlier Explorer intakes have the flat boss where the sensor goes though, so unless you have a spot that looks like it ought to have a hole in it, don't put a hole in there.


Tube on the valve cover goes to the tube on the throttle body. Its the air inlet for the PCV system. If you don't have the tube on the throttle body, you can either add it, or tap into the air intake pipe somehow to give it an air source. Not super critical if you have speed density, but it really needs to be connected to the air intake if its mass air.

[Neal 97 250]

The one with the red hard plastic hose? That's the fuel pressure regulator...it needs constant vacuum yes

Thanks. I have plenty of lines on this new plenum. Most will be just capped off.
I labeled this line as you can see but it was plumbed in with the EGR junk that is no longer there.

Throw it in your airbox. That's where mine is.

Easy enough.

its the air charge temperature sensor. There are two answers here. One is throw it in the airbox. The official correct way is to drill and tap the lower intake to accept it. The ECM doesn't go into long-term learning strategy unless that sensor hits 120 degrees, which it will never do in the airbox. Does it really matter? Shit if I know. I put mine back in the intake trying to fix a problem, and it didn't really do much.


its a 3/8 NPT tap if I remember correctly. Only earlier Explorer intakes have the flat boss where the sensor goes though, so unless you have a spot that looks like it ought to have a hole in it, don't put a hole in there.


Tube on the valve cover goes to the tube on the throttle body. Its the air inlet for the PCV system. If you don't have the tube on the throttle body, you can either add it, or tap into the air intake pipe somehow to give it an air source. Not super critical if you have speed density, but it really needs to be connected to the air intake if its mass air.

Thanks guys. You have answered my problems and I really appreciate it.
This swap is going slow because i only get to work on it in my spera time. An hour or two in the afternoon if I can even get that much time.
It won't be long now.

-ACT goes into the airbox.
-Fuel pressure regulator get full vacuum all the time directly from the upper intake.
-And good filtered air for the valve cover/oil filler neck. Just as I suspected. I forgot to take a pic of the engine before I pulled it (dumbass) so I forgot wher this one connected.



One more question; What belt are you guys running that have removed the air pump but still have A/C?
I plan on marking the length and going to the parts store and spending some quality time there. But I thought that someone here may have done this and has this info handy.

Thanks again,
Neal

[86VickyLX]

Thank you, Thank you, Thank you soooo much.
I cut an old socket off. Shortened it on both ends quite a bit and cut a slice out of the side of it.
It worked like a champ on the plugs.
Kudos to you guys.

Here is an updated pic. The intake is just sitting on the top for now but you get the gest.




OK now for a couple of questions.
There is a what looks like a vacuum valve on the fuel rail. What should I do with this? Vacuum all the time or not? Here's a pic



Something else, There is a sensor on the lopo intake that is not there on the new Explorer intake. What is this for and what should I do with the plug? It is the one in the center of the pic. Here is the pic:



One more question, should I put a full vacuum to the oil fill tube? In addition to the PCV?
Here's a pic:

Full vacuum to the red line on the fuel rail (Fuel pressure regulator).
Full vacuum to the valve cover (breather for the pcv system). The later explorer throttle bodies don't have the pipe for the breather. Also, you'll have to use the tps from the explorer. If you had an earlier throttle body, it would already have what you need.

Get a later model air box from a town car or something, they have the sensor in the air box. You'll need to extend your wires, but that shouldn't be too hard. The other option would be to drill and tap the gt40 intake to accomodate the sensor.

[Neal 97 250]

more questions

Can I use the ACT that is already in the 1995 airbox. It is different than the one I pulled from the 1990 but I can overcome the electrical connection differences very easily. Otherwise I need to try to make the one from the 1990 fit.
Pics:

[Neal 97 250]

TPS question

Can I just swap the TPS from the 1990 and put it on the newer Explorer TB? There are plug differences but if I can use the old TPS it would be nice.
Pics: