help me reach 100! - update! GTI HEAD BOUGHT!

[Khare]

If you're replacing the entire driver system with the GTi system a pipe from a GTi would be a good idea 

well the backbox and intermediate pipe are aftermarket and im pretty sure they are 50mm. I'l get the 54mm pipe from gsf and with all that and manifold and downpipe car should breather bloody well!!
should sound pretty loud too!

[Khare]

http://cgi.ebay.co.uk/Mini-Rotary-Drill-Tool-60-Acessory-will-fit-dremel_W0QQitemZ380070274857QQcmdZViewItem?hash=item380070274857&_trkparms=72%3A1298|39%3A1|66%3A2|65%3A12|240%3A1318&_trksid=p3286.c0.m14

is that perfect for porting and polishing??

[bomp]

Nope, it's ok for light work (I know coz I got the exact same tool, but different brand name) but not enough power on the motor.  Plus the collets wears on them, so it looses grip on the shanks, thus the burs stop dead but the motor still turns.

[richard s]

check head for pitting where water flanges mount to head if pitted get some wet and dry and a flat block and rub it down until pitting has gone

[Khare]

check head for pitting where water flanges mount to head if pitted get some wet and dry and a flat block and rub it down until pitting has gone

head is gnna get acid dipped so it should clear the lot.
Very thick layer of oil all over it and i want it nice and clean. So im gonna port it, then get it skimmed and dipped, then polish it

[richard s]

i dont think acid ipping will remove pitting
its not hard and doesnt take long to remove when i did my head it was a case of i did it to reduce the chance of having water leaks on rebuild (mine seemed to be pitted quite a bit but doesnt leak from the water flanges any more just the valves that stop the heater matrix bursting)

[Khare]

ok. what is pitting lol
Is it the limescale thingy?

[sidecarphil]

no it is tiny little holes that the antifreeze leave's if it has been left for too long in the engine as it becomes acidic after time , thuse eating away at the head

if this happen's the head casting can become thin and then you will get oil/water mix even though the headgasket is new/ok

hope i ain't baffeled you 

[richard s]

i think it is where the water leaks and starts to corrode the alloy and leaves lots of ittle pits/craters on the machined flat surface
if you look where the water flanges mount they should be flat and smooth if not just get your block/wet or dry and wet flat until it is smooth

[Khare]

cheers lads. will inpsect when its daylight.