Exhaust downpipe sheared stud extraction question

[keehn]

Something I've been meaning to do ever since I bought the car is to replace a sheared stud connecting the downpipe to the manifold (bottom, passenger-most side). This coming weekend, I am replacing the clutch and therefore, will have the transmission out of the vehicle. I am assuming this will give me precious real-estate to work around in.

I have a couple questions though. Does anybody know what the length, diameter, and pitch the studs are? Also, since the break is flush with the downpipe, that leaves a little stud material sticking out of the manifold, what is the best way to extract the remaining stud?

Thanks.

[keehn]

Anyone?

[Handeye]

I not sure on the bolt size.

A bolt extractor set and some pb blaster to get the bolt out. If the car is on a lift it would greatly improve your chances of getting it out with it still mounted on the car.

[keehn]

Took off one of the bolts tonight (piece of cake with the VDub on a lift and a couple extenders on my ratchet). I'll take it to Napa tomorrow to size it up and get the appropriate stud. Also, the downpipe is a recent replacement by the previous owner. That means I don't have to deal with any rusty bolts.

[keehn]

Sort of an update. I put the VW on the lift again and tried vice grips on the stud. No effect (big surprise). So I decided to get some Irwin bolt extractors. I figure if these remove rounded off bolts, why can't the same concept be applied to studs?

I'll try the Irwin sockets this weekend. I'll let everybody know how it goes.