Taking off heat exchangers on a six, where to get the long hex tools? Options

[olav]

I need to take off my heat exchangers to get to my valve covers to change the gasket because it seems to be leaking.

Where does one get the long Allen head tool that fits into the heat exchanger canals to remove the exhaust bolt nuts?

Also, are they 10mm or what?

Thanks.


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[olav]

Thanks for all the great advice and I agree I wouldn't remove them unless I had too.

I'm gonna take off the HEs because I also seem to have a bit of an exhaust leak too. I am going to replace all the gaskets: exhaust manifold and HE/muffler gasgets and hardware namely the exhaust manifold bolts, around the area while I'm in there just to freshen everything up.

I've had the HE's off less than two years max (borrowed tool) and don't drive the car a whole bunch never in rain plus I keep it well oiled down there (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif) and the car is always garaged so I'm not anticipating any exhaust manifold bolt problems (famous last words).

I have all the lower covers ground down, don't think they are "turbo" since I have a 3.2 in there right now. I have the "turbo" covers on my original 2.2l motor though.

Might get some extra studs just in case for good karma.

We have wild turkeys milling about out property so I could bag one of those for sacrifice if I really have too.