DIY Throttle Body Walkthrough

[SappySE107]

Here are the directions to swap the parts from your old throttlebody into one of our billet pieces.

NOTE: You will need to bypass the coolant lines to your throttlebody as they are not needed nor is there a place to put them with these throttlebodies.



Here is what you should be starting with. Remove the TPS torx bits and pull the TPS off the stock throttlebody.


Next, remove the torx bolts holding the throttleplate in place.


Before you use a hammer to tap (not hard) the linkage loose, take a note of how the spring is setup on the other side.


Remove the throttle plate, then hit the shaft where the TPS was to get it loose. Its press fit, so it might take a little force but it most likely isn't going to be too hard.



You will want to use a dremel tool with a cut off wheel or a file that fit, or anything else really to remove metal from the slot in the shaft to accept the plate. Make sure you take the metal off both ends so that the plate will also line up with the holds so you can screw it back down.



Now remove the IAC (or you could have done that earlier but im dyslexic so I did it now.



Now its time to install the parts into the new throttlebody. You will want some grease or vaseline to lube the shaft before you push it through the bearings.



This is the throttle stop screw. Its very important to the operation of the throttle body as you do not want the plate to be wedging itself into the throttlebody bore (it will if you don't adjust this piece). Just loosen the bolt and the screw part will spin as well so you can move it out.



This is how the spring seats on the throttlebody. You will want to line this up, and then spin the shaft/linkage around so you have some tension on the plate. Failure to do this will cause serious problems while driving (you wont get the throttle closed!)



This is how it looks with the plate in place. The X should face the bottom facing out, or the top if you have it facing torwards the plenum. Failure to do this will cause TPS problems as the angle will be wrong, and there will be more gap around the plate than there should be.



With the plate in place, set the stop screw out just past the point where the plate would bind. You will want to screw the plate down some but not all the way as you are setting the stop plate as it can wedge the plate into the bore if you tighten it down all the way before setting the throttle stop screw.



Install the IAC and TPS using the stainless hardware provided, and you are all set now to install the throttlebody.



This is the part I forget most (as is the case with this walkthrough).

[SappySE107]

Tagged for repair...or something like that.

[SappySE107]

Done

[Superdave]

Ben, is it possible to use the throttle plate from the stock 3500 throttlebody?

[Z3R0]

What is that screw you are pointing at in the last picture

[hok666]

Yes, what about that screw?

[SappySE107]

Its for the throttle cable bracket.

[hok666]

Its for the throttle cable bracket.

how easy is it to relocate the coolate hose, could I pick something up at autozone or any other auto parts store?

[SappySE107]

Simple, just need a short piece of hose and 2 hose clamps. Autozone or advance or most any place will have those items. I can supply them for that matter (have been meaning to add that option).

[01BLACKMONTE]

how much of a differance does this make to go billet