Alright, this is a split from another thread (http://www.bonnevilleclub.com/forum/...ic.php?t=84785
), but I felt it would be helpful to more of us if it were in here...
This is basically just a pictorial summary of the parts you disassemble to get the TB off the car. After that, I would recommend following the cleaning instructions from the TechInfo article. I used CRC Throttle Body Cleaner. Also, throttle body plate screws were an 8mm socket, and the 3 bolts holding the TB on were 1/2".
I took the pictures with my measly 1.3MP cameraphone, so please forgive the poor quality. Also, I actually went back and took the pictures AFTER the job was done.
Note: This was done on a 92 SE. No EGR. While I am sure there will be some differences, I believe a majority of the steps/principles to be the same. Dunno bout all you SC'ed goofballs, but here'* to the NA bunch! Also, this is not to go against the Techinfo article that is already in place, I recommend you check that out, however I thought with pics, it might be a little easier for some.
Here are just a few "Before" pictures. Please ignore the damaged MAF Screen, you'll notice it won't be there afterwards...
Alright, this is what you start off with, just a regular throttle body, clueless to the spoiling it was about to receive... Of course, disconnect the 3 sensors that are highlighted. You should unscrew and remove the MAF sensor before going any further (This is the sensor on the right. All my sensors were held on with regular phillips-head screws.
Now, these two screws should come out pretty easy. I used an 8mm socket.
Like I had mentioned in the other thread, I did not need to remove the exhaust heatshield that the rear of the throttle plate was connected to because the throttle plate simply rotated back for me without doing so, however, if you find the need to do this, here are the two bolts, and I can tell you that left one is a PITA.
In these pictures, you'll notice the intake pipe is still attached. I recommend you disconnect your intake ducting. It allows for easier maneuverability around the TB. Here'* how the throttle plate lifted right up for me.
I used a flathead screwdriver to help get the retainers off the throttle cables. Just be careful not to snap them off. You want to do the top and bottom.
With the top one disconnected...
There are three nuts that hold the TB to the gasket/upper intake. Follow the pale white finger...
This one will be the difficult one. IIRC, you need to already have the throttle cables disconnected to get to this one without too difficult a time.
Probably the easiest
Yes, I swear there'* a nut in there
Here'* another pic of that hidden one with the deep socket
And after I took off the TB, cleaned it thoroughly, and replaced it, here'* the finished pics. You'll notice I left off the MAF screen. So far it has not hurt performance, but I am skeptical on anything you can really feel as per this mod, so I'll cover that some other time. Isn't she clean?!
Hope this helps some of you. I know how scary it can be to take on something you've never attempted before!