Throttle valve R&R, 1.7 liter et al Options

[r3dplanet]

So I decided to pull the throttle body (valve) from my car in order to rebuild it. The throttle valve had a tendency to leak and stick. It was also moderately dirty. At the time I was on a personal mission to pull and restore every major component of the D-Jet system. Since then, I've performed similar operations on the MPS, AAR, etc. Perhaps I'll document those operations in a similar way.

My car is a 1971, but the engine is a 1973. I know that other engines use a top-mounted throttle valve, but it's actually quite similar to the side-mounted units like mine.

I realize that this isn't superorbital propulsion engineering, but it might be helpful to somebody.

Here's the original setup. You can clearly see the part number 022 133 067 under the muck, along with various scratches and nasties.







In this photo you can see that there's quite a gap around the brass air valve and inner diameter of the main bore. It seals if the valve is fully closed, but even the smallest relief of the lever allows air to pass.

[zonedoubt]

Nice write up! I did some similar r&r on my throttle body. See here:

http://www.914world.com/bbs2/index.php?s=&...t&p=1444564

Did yours not have rubber seals on either end? Maybe different for the 1.8L TBs.