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Author Topic: AAZ valves  (Read 1922 times)

April 16, 2010, 10:05:14 pm

Powered by Spearco

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AAZ valves
« on: April 16, 2010, 10:05:14 pm »
Does anyone know of the valve diameter (7mm or 8mm)  and if they are a tripple groove.?
Also would using titanium retainers and keepers with the HD high rev. springs be benificial?
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'87 Syncro Transporter Single Cab "Now TDI"
'78 Rabbit..Gas Weekend Racer
'81 Caddy..Diesel 1.6/1.9 TD hybrid 275HP 349TQ "Retired"
'90 MultiVan, 2.5 Suby Swap, Porsche Brakes
'76 Scirocco TD dragster project
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'98 Puch G320
Reply #1April 16, 2010, 10:10:03 pm

Vincent Waldon

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Re: AAZ valves
« Reply #1 on: April 16, 2010, 10:10:03 pm »
Unfortunately the answer is "both"...depending on the exact model and year.

I have only ever run into the 8mm version, mind you, so if you have to guess go there.

Triple groove, and given the RPM range of the average diesel I personally think the stock springs and keepers don't even break into a sweat. ;-)
« Last Edit: April 16, 2010, 10:12:44 pm by Vincent Waldon »
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Vince

Edmonton, Alberta, Canada
2001 silver TDI Jetta Malone Stage 1.5 , 2001 blue TDI Jetta SBIII 216s Malone Stage 3, 1970 Bay Window bus

Gone but not forgotten: 1969/1971 Beetles, 1969/1974 Westies, 1979 Rabbit, 1986 TD Jetta, 1992 gas Jetta, 1994 TD Jetta
Reply #2April 16, 2010, 10:14:58 pm

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Re: AAZ valves
« Reply #2 on: April 16, 2010, 10:14:58 pm »
So they had a split year kind of thing?
But are they both tripple groove'ers  ;D?

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'87 Syncro Transporter Single Cab "Now TDI"
'78 Rabbit..Gas Weekend Racer
'81 Caddy..Diesel 1.6/1.9 TD hybrid 275HP 349TQ "Retired"
'90 MultiVan, 2.5 Suby Swap, Porsche Brakes
'76 Scirocco TD dragster project
'13 Golf R:. Tuned
'98 Puch G320
Reply #3April 16, 2010, 10:41:21 pm

Vincent Waldon

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Re: AAZ valves
« Reply #3 on: April 16, 2010, 10:41:21 pm »
Far as I can tell...someone may know better.

My ETKA lists two different sets of valves, but they show the same picture which suggests the same # of grooves??

Again, someone else may have more practical knowledge.
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Vince

Edmonton, Alberta, Canada
2001 silver TDI Jetta Malone Stage 1.5 , 2001 blue TDI Jetta SBIII 216s Malone Stage 3, 1970 Bay Window bus

Gone but not forgotten: 1969/1971 Beetles, 1969/1974 Westies, 1979 Rabbit, 1986 TD Jetta, 1992 gas Jetta, 1994 TD Jetta
Reply #4April 17, 2010, 08:45:46 am

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Re: AAZ valves
« Reply #4 on: April 17, 2010, 08:45:46 am »
Quote from: Powered by Spearco on April 16, 2010, 10:14:58 pm
So they had a split year kind of thing?
But are they both tripple groove'ers  ;D?



pretty sure the split for 7mm and 8mm valves is the same as an ABA, because isnt an AAZ pretty much a diesel ABA? if i remember right, the ABA got better valves in 98 or something like that. i remember that the split was the late 90s some time. but thats for the ABA, not completely for sure on the AAZ.
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