I'm wracking my pea-brain but don't recall any difference in the intermediate 
shaft between 1.8 and 2.0l 16vs (or 8vs for that matter).  It's been a while 
since I looked closely at the front of a 16v but what you describe as an 
overhang is normal.  From the exterior, the 1.8 and 2.0 blocks are virtually 
identical EXCEPT for the casting on the rear that indicates the factory bore 
diameter.  I have a trashed 1.8l sitting on the floor at home - when I have 
some time (read: this weekend), I'll try to post up some photos.   

    On Tuesday, February 2, 2016 12:37 PM, Holland Phillips 
<hollandphill...@gmail.com> wrote:
 

 The external differences between 1.8 and 2.0 16V heads and blocks are very 
minimal. I don't recall the over hang you speak of, but I wouldn't be 
concerned. ~HollandOn Feb 2, 2016 09:28, "damac2004" <damac2...@sbcglobal.net> 
wrote:

hmmm, i am still not convinced and found a 1.8 oil pump in it.
is there a problem with me going with the 2.0 im shaft/gear and its oil pump?  
if im reading right it can only help?  then i won't have to worry.
the more i read im still not seeing how it can be a 2.0 bottom end with the 1.8 
intermediate shaft if things don't hit when running the engine.

is it normal for the head on these motors to stick way out past the front of 
the block where they meet?  im used to seeing that area flush on mydiesel where 
mated.

On Tuesday, February 2, 2016 at 6:55:11 AM UTC-8, mgyip wrote:
Sure sounds like a 2.0l 16v especially because of the 2 knock sensors which 
were only present on the 91 and later cars - Digifunk for 8v and Moronic for 
16v.  I wouldn't necessarily throw TEPO (the evil previous owner) under the bus 
though - Volkswagen was/is notorious for having a vast spare parts bin that 
crossed model types and years, throwing together old and new model parts when 
their supply was thin.  In 91-92, VW quality was, um, not-so-good and their 
supply was the same.   

    On Monday, February 1, 2016 5:51 PM, Holland Phillips 
<faster...@pacbell.net> wrote:
 

 Well, it's definitely a 9A engine. Whatever else is going on with the 
internals is a mystery. I would just buy all the replacement parts you need for 
the 9A and be done with it.On Feb 1, 2016 14:30, damac2004 
<dama...@sbcglobal.net> wrote:

1.  yes there is an ecu and it has a techtronics chip in it that says 16v 2.0
2.  i think it does have 2 knock sensors on the front of the block to the left 
of the block breather fitting?  each one looks the same, one has a bare wire 
the whole length, and each goes to its own wire harness clip.
3.  this car is disabled on the driveway and im struggling to get it higher for 
me to get underneath.  i was trying to feel around back there from underneath 
looking up and all i can find on the drivers side lower block is a big embossed 
A
i'm new to these cars so im scared its some kind of other engine.  this still 
doesn't explain how this car was using the larger im shaft and smaller oil pump 
gear?  there isn't a mark anywhere on those parts so obviously they aren't 
hitting the guts of the engine.


On Monday, February 1, 2016 at 12:04:43 PM UTC-8, hollandphillips wrote:
Does it have a ECU mounted under the plastic tray at the base of the 
windshield?  The tray covers the windshield wiper motor, and is held on by some 
clips. If it does, it's probably a 9A. The 1.8 liter 16V doesn't utilize an 
ECU.~HollandOn Feb 1, 2016 11:59, "damac2004" <dama...@sbcglobal.net> wrote:

the chasis is a 1991 gti but i don't trust the previous owners after having 
seen all the hack jobs.  for all i know another motor is in there :(

im trying to look on front of block and see these markings in the picture i 
attached, down below that is the part number.

On Monday, February 1, 2016 at 8:30:48 AM UTC-8, hollandphillips wrote:
I don't recall you saying what year your car is. If it's a '91-'92 2.0 liter 
16V, the engine designation is 9A.

~HollandOn Jan 31, 2016 11:51 PM, "damac2004" <dama...@sbcglobal.net> wrote:

is there some kind of decoder?  when i search google i come up with few and 
differing answers.  i want to find out what engine i have so i can make sure i 
get the right intermediate shaft and stock parts to get it smogged.

the block says:  051 103 021
the head says:  051103373-- 
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