RotaryRevn

Seems like this website is acting up. Anyways, how do I remove the upper intake man. I removed the 4 nuts, and 1 bolt that are on top of the manifold. Are there a few hidden nuts or something? This thing won't budge. I still have the throttle body connected but there is no hose on it. All vacume lines ect have been removed.

jacobcartmill

iTrader: (6)

that should be the only thing holding it on. there is a little bracket type thing holding the front of the upper manifold (by the throttle places) in. i think there is a nut there (and maybe one of the other side) then you just lift it straight up.
but watch out after that cause there is a water hose that fits onto a 90 degree fitting on the bottom side of the throttle plates that goes to the engine block. maybe sure you dont rip that like i did the first time cause its a bitch to replace it to where it wont fold.

HAILERS

Only you and God know what year car. On a series four there are .......five fasteners holding the maifold on. One is a very long bolt in the center, more or less.

EDIT: Sorry, head up my darkspot. Wrong answer above.

jimmyv13

There is a 12mm nut by the oil filler neck that is holding the UIM, actually the bolt is on the TB elbow, to the bracket for the IC. It's a bitch to get to.... look around in that area, you'll see it.

jacobcartmill

iTrader: (6)

yeah i remember that now, that sumbitch took me forever to find. yes yes.

dr0x

Heh, that thing came off pretty easily for me

RotaryRevn

Thanks guys, I got it. I had everything off correctly, it was just stuck like glue! I kept yanking and yanking and finally it came loose. Didn't even break the gasket! Now I can remove all of the hard vacume lines for the rats nest!

SmogSUX

iTrader: (12)

So if mines stuck like his ^ how can I get it off w/o messing up the gasket. Pulling and pulling isn't working for me =/

ilike2eatricers

You're probably gonna want to change the gasket anyways. They are cheap like $3 bucks at mazdatrix.

If you are sure you got all the nuts off and that one long bolt you can try pulling up from the TB side for some leverage.

SmogSUX

iTrader: (12)

Another prob to add...how the hell do I get these damn little hoses off. I have pliers holding the clamp so its not whats holding the hose on. And I am pulling so hard I feel that I might rip the damn hose.. Theres like 2 or 3 like this.
Anything I should replace while the UIM is off?

5 bolts total right? 4 nuts and the 1 long one? -holding the thing on.


----AHhhhhh sheet..should I have disconnected a small hose that had the green radiator fluid? It looked like I needed to after I got my UIM off. Still not moving


edit#3 or 4... attached pic. Anyone want to paint shop this with little arrows or anything? Whats the thing im pointing at btw? The coolant hose goes into it.

SmogSUX

iTrader: (12)

I managed to get a better pic....finally figured out how to compress it

Crazyt

Spray some WD40 (I prefer PB Blaster) at the base of the hose. Let sit for a minute and pull away. Probably not the best thing for the hose, but it'll get it off and you can replace it with better condition stuff.

Other things with the UIM off:

Inspect/Replace pulsation dampener
Inspect fuel lines
replace 90° coolant hose going to the TB (tends to leak, and is cheap).
UIM gasket
TB mod
Add extra engine ground where the ECU grounds on top of the engine

SmogSUX

iTrader: (12)

Whats TB btw?
-Also I found a point I could pry at it with my wrench. Jut a corner moved though. Still can get it off
-and does mazdfa sell bigger oil injectors? my dad may not let me run premix on MY car

ilike2eatricers

TB= Throttle body.

To get stubborn hoses off I normally get the hose clamp out of the way first and then use pliars on the actual hose. Clamp and twist. Works really well but sometimes you can damage the hose a little but normally it doesnt happen. If hoses are really baked and rock hard there is a chance they will crack. It's a good idea to replace all the hoses while you are down there anyways.

Here's a tip:

Everytime I remove a coolant hose (such as the BAC) I jam an old spark plug in there so it doesnt leak coolant everywhere.

The 90 degree coolant hose under the TB is a bitch to get off if it's never been removed. Just use the pliar method I said above.

While I was under there I changed:
-all vac lines with silicone
-all water hoses
-check PD
-replaced fuel lines

Here's another tip for you:
If you plan on replacing the 90 degree coolant line under the TB just order a BAC coolant hose and it'll make things alot easier next time.

EDIT: I hope you're not prying at the mating surface of the manifold. Just lift up from the TB and if it still doesnt budge you probably forgot to loosen the nut that holdes the TB to the bracket for the intercooler. Look for the stud coming out of the TB.

I dont believe they sell bigger oil injectors. Are your's not working? There is a test in the FSM to check them.

SmogSUX

iTrader: (12)

Any idea where to order those at cheapest price?
--Should the whole UIM just slide up? On the right there are the two nuts I removed, but the bolts or w/e you call them look like they are going into the uim horizontally. (red arrows)

The wires outer rubber casing is damaged and the wire is showing. Replace? Looks like it could be a pain in the *** =/ (blue arrow)
Can you put arrows to where you are talking about? I am a noob and cant see anything.

SmogSUX

iTrader: (12)

this is where I was prying with my 12mm wrench. I also tried to push it back down but it wont

ilike2eatricers

Mazdatrix has all that stuff. Not totally expensive but not cheap either. The UIM gasket is cheap and the coolant hoses are fairly cheap as well.

Those 2 nuts with the red arrow do not need to be touched. You can pull the UIM and TB as one piece. Look at the bronze bracket right near the throttle body elbow. There should be a threaded stud sticking out of it that goes into the bracket. I think it's preventing you from pulling it up. See where you put the red arrows, go more towards the driverside you see the round elbow cover for the TB and look around there.

SmogSUX

iTrader: (12)

Is there a way to not pull the TB? It looks like if I pull that I need to d/c some throttle cables and a few electrical things.

ilike2eatricers

You will have to disconnect the throttle cables regardless. Just remove the two 10mm bolts holding the throttle cable bracket on the back of the UIM and then pull the cables out of the tracks at the TB. That way you won't have to adjust the cable tensions at all. Only electrical stuff you will need to disconnect is the BAC connector (thing on the passenger side with the coolant lines) and the TPS plug.

SmogSUX

iTrader: (12)

1st one: Do I unsrew the bolt at the end of the throttle cable rack thing? (on tb)
2nd one: Which bolt am I forgetting to take off?
-I want to kick my car because I'm too dumb to figure this out

SmogSUX

iTrader: (12)

Was I supposed to drain the coolant or relieve a fuel pressure line or somthing before I did this? I'm currently getting yelled at because I didn't...

RotaryEvolution

iTrader: (30)

you should drain the radiator about half way or the coolant will spill out the rear upper outlet tube, the bolt you are missing in the second pic is under your TPs connector, it faces the RF strut tower , you can loosen the bolt and slide the UIM up enough to gain access to the 90 degree hose under the UIM.

i don't have many plans this weekend, if you need a hand i can swing by and tell you what to do, i love being the boss of people!

ilike2eatricers

Dont touch that screw. Just follow the cable and you will see it in the tracks at the TB. Just pull them out of the tracks. Just look at it and you'll see.

SmogSUX

iTrader: (12)

I kind of lifted the uim. Should i just let it sit til tomorrow?

-also i did take the cables off the track, but am not really sure if I can get the uim off =/ bahh i dont want to break anything.

RotaryEvolution

iTrader: (30)

yea, it will be fine sitting on there, just make sure nothing falls into the intake runners.