Anyone got the cam locking tools?

[Mig]

Sorry to hear of your troubles.

At this point, if I was in your shoes, I would buy this:
https://www.stomskiracing.com/products/boxster-996-997-exhaust-bolt-repair-kit

It's a precise jig for drilling out the broken bolt - designed specifically for our engines..

The detailed video on the site is quite informative.

Good luck!

[Troutman]

Originally Posted by Mig

Sorry to hear of your troubles.

At this point, if I was in your shoes, I would buy this:
https://www.stomskiracing.com/products/boxster-996-997-exhaust-bolt-repair-kit

It's a precise jig for drilling out the broken bolt - designed specifically for our engines..

The detailed video on the site is quite informative.

Good luck!

Great piece of kit but on the left bank I have only 1 stud removed, the other 5 snapped off.
The right bank has 3 studs removed but they are all in a group. I'm not looking forward to this at all.

[Mig]

You're right, that jig won't work in your case. Too bad, but all is not lost.

I think I found you a solution. This one is about a quarter of the price and has excellent reviews.

It's a universal mini-jig that will enable you to get a perfectly centred pilot hole - absolutely critical for doing this job right.

https://www.amazon.com/OTC-Tools-6982DGS-Drilling-System/dp/B01A8Q3BCE

I hope this one works.

Good luck!

[Paul]

I wonder if studs and copper nuts would be a proactive step to prevent this.

[Meir]

if you are still looking for a good solution to drill a center hole, this one works great:

https://www.youtube.com/watch?v=RbDF9P1uDyk

https://www.yourstoreonline.net/4-piece-metric-quick-center-drill-out-kit/id1136771/product.html

[Troutman]

Originally Posted by Meir

if you are still looking for a good solution to drill a center hole, this one works great:

https://www.youtube.com/watch?v=RbDF9P1uDyk

https://www.yourstoreonline.net/4-piece-metric-quick-center-drill-out-kit/id1136771/product.html

That is a great solution although not available in the UK and import/postage would make it too expensive..I am getting something similar made to screw on the broken studs, it'll have a 3mm hole drilled right through. Cost £7.
I ordered some PBB which again is not easily available in the UK . cost me £12 ($15) for a can. I read somewhere it's better than WD40 for penetrating the threads. They key here is to make sure you clean off all the corrosion where the stud enters the head to allow oil to go in. I'm going to heat them up too which might help draw it in.

[Brian in Tucson]

Originally Posted by Troutman

That is a great solution although not available in the UK and import/postage would make it too expensive..I am getting something similar made to screw on the broken studs, it'll have a 3mm hole drilled right through. Cost £7.
I ordered some PBB which again is not easily available in the UK . cost me £12 ($15) for a can. I read somewhere it's better than WD40 for penetrating the threads. They key here is to make sure you clean off all the corrosion where the stud enters the head to allow oil to go in. I'm going to heat them up too which might help draw it in.

PB Blaster is okay, there are better penetrating oils. Mix atf and acetone 50/50 . I don't remember if your engine is out to the car. I would be tempted to attach the old exhaust gasket and weld a nut on to the stud remains--the heat helps break the bond between bolt and aluminum. Gotta be uber careful, tho. Or if you have ox/acetylene, just heat the stud and crank it out with vice grips.

I wouldn't use studs with copper nuts, copper gets soft under relatively low heat. I would use brass nuts instead. Toyota used to do this.

I don't think I'd try to drill and easy out them either. Very small studs, the danger is breaking off either the drill or the eazy out. Then you are truly screwed. Both are hardened and resist drilling.