Anyone got the cam locking tools?

[Troutman]

I am going to replace the RMS/IMSB/Clutch and exhaust on my Boxster.
I have a few weeks before I get really busy with work so I thought I would just go ahead and get it done..
So far I have replaced the Air/oil separator , plugs (coils OK) and fuel filter.
I have a 4 post car lift now so it makes things much easier than lying under the car (which I have been doing for 30years)
Does anyone in the UK have those brackets for locking off the cams?? and I also need the IMSB removal tool too!!
I know I could make them but it's time and there must be someone with those bits.

The only part of this job that worries me is the exhaust header bolts, they look well rusted in there.
I know I don't have to remove them but the 3 bolts further along are all completely gone and separating that flange will be hard without removing it from the car.

[JFP in PA]

Originally Posted by Troutman

I am going to replace the RMS/IMSB/Clutch and exhaust on my Boxster.
I have a few weeks before I get really busy with work so I thought I would just go ahead and get it done..
So far I have replaced the Air/oil separator , plugs (coils OK) and fuel filter.
I have a 4 post car lift now so it makes things much easier than lying under the car (which I have been doing for 30years)
Does anyone in the UK have those brackets for locking off the cams?? and I also need the IMSB removal tool too!!
I know I could make them but it's time and there must be someone with those bits.

The only part of this job that worries me is the exhaust header bolts, they look well rusted in there.
I know I don't have to remove them but the 3 bolts further along are all completely gone and separating that flange will be hard without removing it from the car.

Spray the exhaust flange bolts with a good penetrating oil and let them soak a couple of days. If that doesn't free them up, side cut the nuts with a cut off wheel and get new ones to reassemble.

[Troutman]

Yeah I know what you mean but there isn't anything left of them, I need to drill them out and to do that i really need it on the bench.


It's that top one, the other two are doable in the car.
I really need to undo the header bolts and remove the whole lot but those bolts are going to break off , I just know it.

[Troutman]

As I thought 8 out of 12 snapped off
I heated the engine up, gave the heads a load of taps with a steel bar and hammer and then tapped on a 1/2" socket, this fits very nicely on the rusted out 13mm heads.




Now i need to find the best way to remove these studs.

[Gelbster]

Finding the center for this job has been covered in great detail (Google broken bolt tool) with specific tools recommended.
Unless you do make that first center punch dead-center ,it will be a tedious job.
for exmple
https://www.brokenbolt.com/blog/broken-bolt-extractors-a-comparison-of-broken-bolt-removal-tools/
https://www.youtube.com/watch?v=mRGcuGK-POs
https://www.youtube.com/watch?v=c-VD1yx61bA

[Gilles]

It seems that you may have enough material to use a pair of vicegrips, but after soaking the studs for a couple of days with PBB and if you still get a stubborn stud, before risking snapping the remaining part off, you may want to use a butane small torch on the stud prior of the vicegrips.
Good luck!

[Troutman]

I welded a new nut on to one of them and thought it might come but it snapped further in.
I need to get some left hand drill bits and build a bed I can lay on under the car and take time to drill them out...hopefully the bit might grab enough and shock them out. They are really stuck in there.
I'll carry on taking the gearbox out and keep spraying them with PB Blaster all week.

[Troutman]

Originally Posted by Gilles

It seems that you may have enough material to use a pair of vicegrips, but after soaking the studs for a couple of days with PBB and if you still get a stubborn stud, before risking snapping the remaining part off, you may want to use a butane small torch on the stud prior of the vicegrips.
Good luck!

No chance of vice grips working. These are very well seized in.

[Troutman]

Here is a photo of the studs.



The middle one is in good shape and obviously came out without a hitch.
The left one is corroded about 5mm below the head but this one didn't snap..i think all the others were like this but did snap.

So I now realise I can't really carry on removing the gearbox as I need to support the engine with that removed and whatever I use will be in the way for removing the studs.
I could support the engine take the box out, fit new RMS/IMS and clutch, refit box and do the studs but if I can't get them out in the car I am going to have to take the engine out and remove the heads meaning I will most likely have to take the gearbox off again..the joys

[Gilles]

Troutman, this is how I secured the engine from above with the gearbox removed (to repair a leaking cam cover), replace the front engine mount, etc., it is not very elegant but actually works pretty well

http://986forum.com/forums/boxster-general-discussions/69134-removing-transmission-but-still-rolling-car-around.html#post550556

[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