I have ulterior motives for copying Brandon's awesome throttle body DIY here - I plan on doing this myself shortly and this guide will be invaluable when the time comes! This post was being buried (somewhere on page 5 or 6 of the general chat section) and I thought it deserved to be here. All pics and text are Brandon's - directly copied from his original post - totally without his permission but certainly with respect for his abilities - hopefully he wont mind!
First, if you're removing the TBs from your car, be very careful with your E10 socket on the nuts holding the TBs to your head. Go slowly and stay on them as straight as possible or you could risk stripping. These guys are about $14 EACH, so be careful!

A couple of the E10 bolts holding the mount blocks to the TBs didn't want to come loose and had to be drilled/extracted.

So I started with this mess of 46mm throttle bodies that looked like they spent some time at the bottom of the Hudson River

Muck accumulation everywhere.

First 12mm bearing was totally shot

Second 12mm bearing seal gone


The 8mm butterfly shaft bearings weren't in much better shape
Before cleanup

After cleanup


Disassembly




Disassembled parts




First, if you're removing the TBs from your car, be very careful with your E10 socket on the nuts holding the TBs to your head. Go slowly and stay on them as straight as possible or you could risk stripping. These guys are about $14 EACH, so be careful!

A couple of the E10 bolts holding the mount blocks to the TBs didn't want to come loose and had to be drilled/extracted.

So I started with this mess of 46mm throttle bodies that looked like they spent some time at the bottom of the Hudson River

Muck accumulation everywhere.

First 12mm bearing was totally shot

Second 12mm bearing seal gone


The 8mm butterfly shaft bearings weren't in much better shape
Before cleanup

After cleanup


Disassembly




Disassembled parts




Comment