Can't find cam cap studs AAN

[Durr McDanks]

It looks like audi doesnt have a PN but does anyone know where I can obtain the cam cap studs for an AAN?
More specifically the studs that are coming out of the head pictured here: http://forums.quattroworld.com/s4s6/msgs/104013.phtml

[UrS4boy]

Head studs and camshaft caps, don't seem to be a spare part. However, we know that the exhaust manifold studs (N 901 889 02) can be found if you enter the PN as "N 90188902" so there might be a way.

I know for sure EDIT *cam caps* themselves are NOT a spare part due to the rifle drilling of the head and the cam caps together.

Have to ask: Why do you need cam cap studs anyway?

[spink]

how many do you want?

[UrS4boy]

how many do you want?

Is there a PN for the cam cap studs? What is the spec M8x35?

[spink]

no idea if they are available to buy new or not but it is 030103397a m7x45

[Durr McDanks]

Thanks for the replies I found it and so did spink pn# 030103397A. I am going to call up the dealership and see if they have them for direct pick up other wise I will just get them online. Answering your question one of them broke off when I was installing a set of 7a cams.

[terrybullwon]

Also the same as any VW audi 16V motor

[UrS4boy]

no idea if they are available to buy new or not but it is 030103397A m7x45

Where is the "slaps himself in the forehead" emoticon when you need one? Can't believe it. That PN shows as Item 3 on Ill.103-54. 24 are required. (Yup that is them). How could I miss that? Duh. Thanks Spink.

Just checked Genuine AudiParts.com in the USofA. Listed at US$3.90 each but selling (in theory) for about US$2.42.


http://genuineaudiparts.com/partloca...&siteid=214407

[UrS4boy]

Cam Cap Tightening Procedure

Answering your question one of them broke off when I was installing a set of 7a cams.

Ouch. I trust you weren't over torquing them. The cam cap nuts only need 11 lb-ft or 15 Nm. The tightening sequence is important, as shown here:

[max_s2]

Can someone please describe me that blue text on the picture above? My english is too weak to understand it

[UrS4boy]

Can someone please describe me that blue text on the picture above? My english is too weak to understand it

Basically it says that when you tighten the cam cap nuts (15 Nm or 11 lb-ft), you should do so in a diagonal sequence with the centre and end caps. You leave the second and fourth caps (or seventh and ninth caps) off until the centre and end caps are tightened down. Then you add them and torque them down. Do NOT swap the caps from their numbered position OR from end to end.

Does that help?

[dkw_dude]

I'm stealing this for when I'll remove/install my 7A inlet camshaft, thanks for the write up!

[RichLV]

I did not tighten mine in a sequence when reinstalling cams. I could not catch the nut on the stud because the cam doesn't sit as it does when tightened. Torqued them as the cam was returning to it's place. No problems from then.

[dkw_dude]

Ok, thanks for the heads up

[UrS4boy]

I did not tighten mine in a sequence when reinstalling cams. I could not catch the nut on the stud because the cam doesn't sit as it does when tightened. Torqued them as the cam was returning to it's place. No problems from then.

You have to push the cam down a bit down onto the cam followers (and the valve springs) to get some of the nuts started. The sequence typed in blue on the diagram (by me), is from the Robert Bentley factory C4 manual not just something pulled out of the air. The sequence was developed to prevent people from slightly bending and/or breaking their cams when removing and installing them. I doubt that your eye is good enough to tell whether the cam is straight or not.

Bottomline: I strongly recommend following the factory procedure.



Item 3 studs