aaz head on 1.6

[Smokey Eddy]

Yeah, i have some hard starts a lot of the time and im thinking the comp. is rooockk bottom mostly to do with a messed up head but also too big a spacer inbetween the top & bottom

[subsonic]

I did it on my mf block with no problem.  Holes line up nicely with the aaz head.  Can only help.

actually don't forget that the AAZ gasket thickness is indeed more, and will result in a slightly noisier/rougher cold start... you can compare the thicknesses in the bentley.  but for high boost, and reliability, it is definitely worth it! i'll take a little rough start in the winter for a reduced chance that it will blow a hg.

I was wondering about that.

I wasn't able to find the specs on the AAZ to compair though.
I went with a 1 notcher and was on the edge of the specs but thought I remembered reading somewhere about the AAZ gasket being a tad thicker so I went for it.
Worked out ok so far..

From the FAQ section:

Thanks go to fspGTD for retrieving this information:

1.6L

1980 Rabbit 1.6D:
* 3-notch (1.4mm): 068 103 383 FB
* 4-notch (1.5mm): 068 103 383 FC
* 5-notch (1.6mm): 068 103 383 FD

1981 Rabbit 1.6lD 11mm headbolt:
* 1-notch (1.4mm): 068 103 383 ES
* 2-notch (1.5mm) 068 103 838 ET
* 3-notch (1.6mm): 068 103 383 FA

81-84 Rabbit/Jetta 1.6 solid lifter 12mm headbolt:
* 1-notch (1.4mm): 068 103 838 FL
* 2-notch (1.53mm) 068 103 383 FM
* 3 notch (1.61mm): 058 103 383 FN

1986 Jetta 1.6 hydraulic:
* 1-hole (1.53mm): 068 103 383 EH
* 2-hole (1.57mm): 068 103 383 EJ
* 3-hole (1.61mm): 068 103 383 EK

The 11mm headbolt Vanagon CS engine code did get a unique head gasket:
1980-85 Vanagon 1.6 11mm headbolt (up to CS 000 338):
* 1-notch (1.4mm): 068 103 383 AT
* 2-notch (1.5mm): 068 103 383 ET
* 3-notch (1.6mm): 068 103 383 FA

Engine code JX:
* 1-hole (1.53mm): 068 103 383 FE
* 2-hole (1.57mm): 068 103 383 FF
* 3-hole (1.61mm): 068 103 383 FG

1.9L

1 hole (1.53mm) 028 103 383BH
2 hole (1.57mm) 028 103 383BJ
3 hole (1.61mm) 028 103 383BK

Looks like a 1 hole 1.6 hydro is the same as a 1-hole aaz.

[zukgod1]

Ok so I'm using a solid lifter bottom end and a hydro head...

Confusing!

Ok not really. as to with the newer hydro engines the gaskets are the same as the AAZ's.

[Smokey Eddy]

Are the aaz gaskets hard to find? (ones that are well made, ie. not plastic/cork)


(this is turning out to be extremely insightful, thanks everyone)

[subsonic]

If you are in Canada you should be able to get them easier than we can in the states.  We never got the aaz so no one carries parts except specialty shops.   The aaz HG is considered a upgrade because it is a metal hg.  Much better than the stock 1.6.

[Smokey Eddy]

just as a note the 1.9 tdi HG is metal also. I use it on my 1.6

[Smokey Eddy]

Ok, so as a bit of an overview or collaberation of questions i guess:
I think I have a hydro block (or at least i should? how can you tell...?)
I have to get an AAZ HG, i can't use a 1.9 TDI, right?
Drilling these "steam holes" do i have to get a machine shop to do that for me or can i skip doing that?
Can i transfer my 1.6 td hydro lifters (if they are ok) over to the aaz head?

[subsonic]

You do not have to add the steam holes, they are just a added efficiency.  A machine shop does not have to do it.  You can lay on the aaz hg and mark the hole posistions with a marker,  remove the hg, give each mark a little wack with a pointy abject to make a small dimple, use a hand drill, straight up and down, drill away.  The drill dia can be a bit smaller than the hole size.  Just be careful with chip cleanup, tape off etc.

What does the head you pulled off look like?  Does it have 2 bumps on the front or one?  If it is off you can look at you lifters as well.  Do they have a small circle on top with a shim in it?  that would be a mech head, smooth tops would be a hydro head.

[gigaz2]

do the mech blocks also have the bumps? IE do they follow the head?

[jtanguay]

i seem to recall actually reading that the AAZ gasket thickness is more than a 1.6 but i guess i could be wrong...

[gigaz2]

it depends, seems like Hydraulic block HG have the same thickness.
mechanical are slimmer(for the same number of holes)

[Smokey Eddy]

What does the head you pulled off look like?  Does it have 2 bumps on the front or one?  If it is off you can look at you lifters as well.  Do they have a small circle on top with a shim in it?  that would be a mech head, smooth tops would be a hydro head.

I know I have a hydro head. I'm wondering about the block. I have no idea what has been done to this car. Obviously lots (of bad things), poor thing.

Again, can you transfer hydro lifters to the AAZ?

[zukgod1]

do the mech blocks also have the bumps? IE do they follow the head?

No, the second smaller oil drain to the right isn't there it actually overlaps a coolant passage, thus all the threads on how to fit a AAZ HG to a 1.6. Same thing, the ports line up differently.

[zukgod1]

Again, can you transfer hydro lifters to the AAZ?

Do you have the lifters?

Do you have the AAZ head?

Measure..

I think they are the same, hopefully someone with a bit more knowledge will chime in.

[gigaz2]

034109309AD
 
yap, AAZ and the hydro 1.6 share the same reference, so yes, you can

EDIT: knowlegde... you mean ETKA