Tinware writing, Was this on all cars…?? Options

[Clubsport32]

Hi All

Have seen this on an unrestored car…does anybody have anymore details…? I assume the 022 refers to the 1.7L but what about the other number?

Any insight would be appreciated…thanks

Andy

[StarBear]

Awesome investigative work, @wonkipop !
Yep; PN on mine on the side of the TB stem like the photo above. 067A with the Audi logo and a little “1” to the right of the logo.
Soooo, the TBs on the 1.8s ARE a different part number. Next obvious question is “HOW are they different?” Or just “A” to designate PN for supply to Audi? The VW versions don’t have the A; sort of like a supersede designation?
The mystery evolves. (IMG:style_emoticons/default/biggrin.gif)

[wonkipop]

Awesome investigative work, @wonkipop !
Yep; PN on mine on the side of the TB stem like the photo above. 067A with the Audi logo and a little “1” to the right of the logo.
Soooo, the TBs on the 1.8s ARE a different part number. Next obvious question is “HOW are they different?” Or just “A” to designate PN for supply to Audi? The VW versions don’t have the A; sort of like a supersede designation?
The mystery evolves. (IMG:style_emoticons/default/biggrin.gif)

@Starbear - what you need to see, if you can easily, is if yours has an H cast/stamped on it anywhere.
it might be somewhere else.

i think the way it works is that all the 1.7s are 022 133 067 with either a D or an E also on the throttle body. the D or E is stamped elsewhere and not immediately after the numerical PN? the D is on the earlier 1.7 cars and the E is on later 1.7s. i'm guessing A, B,C would be EFI VW engines with D jet earlier than 914s.

for a 2.0 the TB is 039 133 067 with either a D, B or C stamped somewhere else?
but not relevant to this discussion. but interesting i suppose since the parts catalogue implies its revised or different along the way.

for a 1.8 the TB is 022 133 067A with either an H, L, R or S stamped elsewhere.
the A immediately after the numerical numbers signifies it is the first significant variant of the original 1.7 throttle body? bigger bore on a 1.8 for a start?
the H L R or S signifies some other smaller variation in the throttle body?
so far i have only been able to come across images of TBs with the H stamped on them like mine.

your TB is likely an early batch of the 1.8 TBs and has the PN stamped on the spindle like 1.7 TBs. after earlier batch they change the casting, or maybe even the supplier of the casting?

(IMG:style_emoticons/default/beerchug.gif)