Author Topic: Need new 1.9TD AAZ cylinder head  (Read 2760 times)

July 12, 2011, 08:18:48 pm

erice1984

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Need new 1.9TD AAZ cylinder head
« on: July 12, 2011, 08:18:48 pm »
I need a new cylinder head because mine has large cracks between each set of valves.

I was wanting to start a discussion on where ones could be obtained for a reasonable price and what others think about them or other buyers' experience with them.

I saw prothe one for sale on ebay and one of his various websites for a decent price. My concern there would be quality, although I think it is priced well for a bare head (which is all I need)

Quality German Parts someone on here said they got one for ~650 with all parts.

Parts Place Inc has them for 899 complete.

I would go with a used one, but it seems that they will have cracks as well and its not money well spent.

-Eric
1980 Rabbit 1.9TD


Reply #1July 14, 2011, 02:55:58 am

regcheeseman

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Re: Need new 1.9TD AAZ cylinder head
« Reply #1 on: July 14, 2011, 02:55:58 am »
they all have cracks, the only one I've ever seen uncracked was a new one.

Reply #2July 14, 2011, 06:13:16 am

theman53

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Re: Need new 1.9TD AAZ cylinder head
« Reply #2 on: July 14, 2011, 06:13:16 am »
From what my machinist tells me you don't need to worry about cracks between valves. He said they USUALLY only get so big and stop. He also said if I was real worried I could pay him to weld or peen them shut and recut the seats. I didn't and mine is fine so far.

Reply #3July 14, 2011, 03:08:11 pm

erice1984

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Re: Need new 1.9TD AAZ cylinder head
« Reply #3 on: July 14, 2011, 03:08:11 pm »
I got one crack I can fit my finger nail into  :o  So that makes it like 1mm wide crack.  The other 3 aren't as bad.
1980 Rabbit 1.9TD


Reply #4July 14, 2011, 05:02:36 pm

8v-of-fury

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Re: Need new 1.9TD AAZ cylinder head
« Reply #4 on: July 14, 2011, 05:02:36 pm »
There is a spec around here for the size the crack is aloud to be.. Most aren't a concern though.

Also fun fact, my 325k km 1.6 '91 na didn't have the cracks at all between the valves.. Weird.

Reply #5July 14, 2011, 05:35:36 pm

theman53

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Re: Need new 1.9TD AAZ cylinder head
« Reply #5 on: July 14, 2011, 05:35:36 pm »
I believe I could get my thumbnail in all of them. They were wide but not real deep. You can peen or weld and recut if it is that big of concern for you. Might be cheaper than a new head.

Reply #6July 15, 2011, 10:48:41 am

R.O.R-2.0

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Re: Need new 1.9TD AAZ cylinder head
« Reply #6 on: July 15, 2011, 10:48:41 am »
I believe I could get my thumbnail in all of them. They were wide but not real deep. You can peen or weld and recut if it is that big of concern for you. Might be cheaper than a new head.

if you can fit a penny in the cracks, there too big..
92 Jetta GLI - Black, 1.6D w/ GT2056V turbo..
86 GTI - 4 Door, Med Twilight Gray, Tow Machine..
86 Audi Coupe GT - Tornado Red, All Stock.. WRECKED.
89 Toyota 4Runner - Dark Grey Metallic, LIFTED!

Turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster.

Reply #7July 18, 2011, 09:31:57 pm

rabbitman

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Re: Need new 1.9TD AAZ cylinder head
« Reply #7 on: July 18, 2011, 09:31:57 pm »
Somewere on here is a picture of a cut head showing where that crack goes, the wider it gets the deeper it gets and eventually it hits coolant.
'82 Rabbit, I put on a euro vnt-15, 2.25" DP, 2.5" exhaust, the result.....it whistled.

I removed the turbo, made a toilet bowl 2.5" DP, the result....it was deafening. Now it has a homemade muffler up front and a thrush in the rear, the result.....less loud.
Watch: AGENDA, GRINDING AMERICA DOWN