GT2052S project thread number three

[306Puggy]

Right, this morning's update. Been busy extending the threads in the cylinder head mani stud holes. I got four out of six, but the two that I didn't get were because the tap was going in a certain amount and then just stopping dead, almost as though the holes didn't have the extra depth that the others had. Although it is perfectly possible that I cross threaded them with the tap, as it is tricky with a heavy tap handle on the end of the tap. For reference, this is how far the tap should go on a mani stud hole with the correct depth:



And this is how far the tap was going on the ones that I think might be shallower or that I might have cross threaded:



Luckily I can still get the studs far in enough to support the turbo, they might have already been like that I don't know.

Next step was to commit some bulkhead bashing. This was quite awkward with a gap small for swinging a club hammer around in and at the same time trying not to knock the cylinder head to mani mating surface as aluminium is very soft and dents easily. The last thing I want on a big turbo is a mani leak!

Hmm, not enough:



That's more like it:



Does anyone know how far to bash it for a GT2052S with a 6mm adapter plate? Thanks.

Next stage is to clean the cylinder head to mani mating surface and then get a couple of studs mounted and clock the GT2052 in relation to the K14 and begin fitting!



Nice (relatively) clean cylinder head to mani surface. There is some pitting from manoeuvring the manis out and no doubt from catching it a few times with the club hammer which is annoying but can't be helped. I hope nothing leads to an exhaust leak!


Now time to bring the GT20 down and start clocking it and mocking it up.