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View Full Version : Pulled and cleaned the upper manifold...happy joy (pics)


katnyp
11-05-2001, 04:02 PM
My new motto, "Duct tape may not be a cure, but it sure is great medicine". More about that later.

In all, it wasn't too eventful. I don't have a huge supply of tools, but it didn't take many to reach all the bolts required. A shop manual is helpful, as it will tell you the order in which to remove and reinstall the bolts to the intake manifold, and how to torque most of the other bolts as well. WD-40 was great help on some of the bolts that were really difficult (I'm not He-Man either).

The back side of the throttle body was quite dirty, as was everything else from that point to the lower end of the lower intake, where the fuel injectors spray. From that point, it was quite clean. There was a big difference between the primary and secondary intake ports. The primaries just had a light glazing of buildup, whereas the secondaries were covered with crap. Unfortunately, the lower intake didn't get cleaned, because there was no way to get them clean (while on the engine) without leaving a half cup of cleaner in each cylinder. That wouldn't be good.

I worked on it off and on for 5 or 6 hours, gotta take football breaks. A good chunk of that was waiting for the upper to dry, though I got impatient with that, and stuck it in the oven. Forgot to get a pic of that one. :)

Back to the duct tape, there were a couple of incidents; one of ignorace, the other of stupidity. Since a bunch of you will be doing swaps soon, maybe I can help you avoid a problem. I broke the base of a vacuum line connection (there are 2 of them at the top of the manifold right after the throttle body. There is a retaining ring at the base that you have to hold down while pulling up on the line. I failed to figure that out on the first one, I just tried to pull it out, and 'SNAP'. It broke quite easily.

The other thing (I simply could have handled it better) was that I lost the retaining clip for the throttle cable, where it attaches to the throttle body. I tried to push it off with a screwdriver, having no way to catch it, 'cause I didn't want to stab the hand that should have caught it. So it flew off, and like any small part, Murphy's law states (or should state) that when you drop something in the engine bay, it will never reach the ground. It's stuck in the sub-frame somewhere. I am sure pulling it off with pliers or vice grips would work a lot better.

The attached pics show the various parts disassembled, while they were still dirty, plus a pic afterwards, showing how I managed to make the car driveable, until the replacement parts come in. :) BTW, I couldn't get very clear shots of the close-ups, cameras have their limits.

pgtatx
11-05-2001, 06:34 PM
I cleaned my lower when on the engine...I used very strong cleaner (carb/TB cleaner), and I used rags, my fingers, q-tips, and a lot of bending over and scrubbing. I got my butterflies shining and the ports were clean as far as my fingers could go. I also soaked my Upper IM with the same cleaner and then flushed it out with water. I also cleaned the TB which wasn't too bad. Then I used some "Fuel injected" TB cleaner which you spray into the intake charge at the TB with the engine on, and it cleans and lubricates the parts I can't get to. I ran it for a few seconds at a time a few times, and after that My idle was very smooth. And I know my air flow was increased due to a CEL being tripped for Lean conditions, so I had to tune my optimiser again. You won't have to worry about that happening. My car was very happy after that day.

Excellent use of tape.

katnyp
11-05-2001, 06:44 PM
I hope it holds when the upper gets hot.

I spent an hour or more (and a can of TB cleaner) just doing the upper and cleaning the gasket contacts. I went over those surfaces so many times, I didn't feel like doing 'spray the rag and wipe' on the lower ports, the black stuff was really solid.

I think the whole thing would have gone better doing it by spraying cleaner into the running engine, like you said, but to get ALL the ports clean, the secondaries should be pinned (I don't know if there is an easy way to do that)

AirWolf
11-06-2001, 12:25 PM
Thanks for the tips Wayne...If my UIM comes in before friday, I'm going to spend friday working on my car. Hopefully I won't break anything, especially since I won't have any transportation until the afternoon to go and get parts!

MeccaManx2
11-06-2001, 05:37 PM
better be careful about the those hoses on top of the UIM. i broke mine and also taped them, eventually they will loosen a little bit and leak. One of the hoses goes to the brake booster and im not sure where the other one goes, power steering column? but anyways, i broke the one to the brake booster and when the tape didnt hold anymore, the hose leaked and my brakes locked. i did not crash, but i havent been drivin since, still waiting for the new part at a dealer.

katnyp
11-06-2001, 06:03 PM
Thanks for the warning. That's the same one I broke. Even taped up, it leaks a tiny bit, sounds like I have 2 hot air intakes.

I suppose it's next to impossible for that vacuum line to break on it's own, but having the failure cause brake lock-up sounds pretty scary. I will keep a closer eye on it, and possibly more tape.

katnyp
11-06-2001, 09:22 PM
Hats off to my dealer! My parts came in, it only took one day! It usually takes a week or more. Should I glue the cable retainer to my hand before putting it on? Wouldn't want to drop one of those again. :)

MaStaMooN
11-06-2001, 10:08 PM
You would think they would sell those little pipes separately since they are so easily broken.. I barely pulled up on mine when mine broke.. pita.. Never even tried taping it.. I just waited for the new part to come in... but If i did want to repair it.. Tape would not have been my first choice.... epoxy would be #1 and 2 would be crazy glue gel.

katnyp
11-06-2001, 10:56 PM
I didn't have any super glue or epoxy laying around, unfortunately. There will probably be permanent duct tape goo on my manifold later, once I fix it.

The clips Ford uses for electrical connections work really well; pop on - pop off, no fuss. I wish they would use something similar to that, in place of the rings they use on those vacuum lines. This isn't the first time I got burnt on that style of retainer. The clips for the trunk carpet work much in the same way, I broke 3 of those getting to the 3rd brake light. I'm not really an idiot, I understand the physics, those clips just don't work well. Sorry for the rant.


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