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Engine Specific Info and Questions => IDI Engine => Topic started by: subsonic on July 22, 2008, 09:51:01 am

Title: Nuts and bolts question
Post by: subsonic on July 22, 2008, 09:51:01 am
Does anyone know if the intake manifold bolts are the same for both the 1.6td and the 1.9td?

Will a 1.6td stock dp match up and connect to a stock 1.6na exhaust pipe?  I know it's not the best for performance, but will it work?

Does anyone have the spec on the 3 nuts and bolts used on the AAZ  head that hold on the VC?  The 3 that screw into the head and project up through the VC.
Title: Re: Nuts and bolts question
Post by: Vincent Waldon on July 22, 2008, 10:21:30 am
Quote from: "subsonic"

Does anyone have the spec on the 3 nuts and bolts used on the AAZ  head that hold on the VC?  The 3 that screw into the head and project up through the VC.


The nuts are standard (M8 ??) nuts with a 10mm face... same as what bolts down the 1.6 VC (and many other parts of a VW !!)

The studs are actually a specific dealer part (as far as I have ever been able to determine)... they look like a simple stud with three nuts cross-treaded but are actually all one machined piece at a very specific height so that the main VC gasket and the 6 other donut gaskets around the three studs compress just enough to seal but not enough to distort.
Title: Nuts and bolts question
Post by: saurkraut on July 22, 2008, 11:03:30 am
The intake manifold bolts are the same.

The down pipes are completely different between the 1.6na and 1.6td

I don't know about the 1.9 valve cover screws.  I do know that I'm going to drill and tap my 1.9 head to take the 1.6 valve cover.  With the 1 piece rubber valve cover gasket, I should be in like Flynn.
Title: Re: Nuts and bolts question
Post by: subsonic on July 22, 2008, 04:48:12 pm
Quote from: "Vincent Waldon"
Quote from: "subsonic"

Does anyone have the spec on the 3 nuts and bolts used on the AAZ  head that hold on the VC?  The 3 that screw into the head and project up through the VC.


The nuts are standard (M8 ??) nuts with a 10mm face... same as what bolts down the 1.6 VC (and many other parts of a VW !!)

The studs are actually a specific dealer part (as far as I have ever been able to determine)... they look like a simple stud with three nuts cross-treaded but are actually all one machined piece at a very specific height so that the main VC gasket and the 6 other donut gaskets around the three studs compress just enough to seal but not enough to distort.


Well, I found two of these studs from my old 1.9 head.  Of course the 3rd is missing :x
I talked to myke and he thought that the studs from a AHU would be the same.  Anyone else verify this?
Title: Nuts and bolts question
Post by: theman53 on July 22, 2008, 06:38:00 pm
vince wrote:
The nuts are standard (M8 ??) nuts with a 10mm face... same as what bolts down the 1.6 VC (and many other parts of a VW !!)


I am not being picky (I hope not anyway ) but I am almost positive that the VC nuts and studs on my 1.6 is the 6mm1.0 thread nut and the 6mm1.0thread stud by 30mm long. The stock ones are shouldered, but I got new studs and run the 1 peice rubber gasser gasket now.
I don't know about the AHU though  :cry:
Title: Nuts and bolts question
Post by: Vincent Waldon on July 22, 2008, 09:49:44 pm
Nah you could well be right... I took a guess based on the fact that I use a 10mm wrench on 'em !!