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Author Topic: 1Z/AHU differences  (Read 14601 times)

Reply #15July 13, 2006, 03:02:09 pm

A2TD

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1Z/AHU differences
« Reply #15 on: July 13, 2006, 03:02:09 pm »
Quote from: caddy
head of 1z and ahu are different , valves axle are in 8mm on 1z and 7mm on ahu.
some 1z tdi engine come with single stane injectors.


Not in NorthAmerica.
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Reply #16July 27, 2006, 04:03:41 pm

houseofdiesel

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1Z/AHU differences
« Reply #16 on: July 27, 2006, 04:03:41 pm »
Early north american 1z motors had 8mm valves, up to engine number 770000, after that 7mm. All AHU were 7 mm I think as they came out in 97 not 96 and even the AAZ changed over in late 96 to 7mm valves. Never noticed different injectors though.
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