okay i have no cinq so cant check spanner,bolt sizes etc so any i miss/get wrong plus im working from memory.so please reply and i'll edit the guide accordingly and delete replys to keep it neat :)

so 1st you need to disconnect the battery - terminal.
then remove the airbox.

standard engine.jpg
if you have an induction kit im sure you can work out how to remove it ;)

remove the 2 12mm nuts and washers on top off the airbox.
be careful not to drop them
pull back the airfeed to the right(N/S) of the airbox
and the crank breather hose to the O/S rear of the airbox.
lift the airbox up but dont remove.
look underneath to the rear and remove the breather/vacuum pipes from underneath the airbox and remove.

now you will see this
tb before removal.JPG


disconnect the throttle cable to the left(O/S) of the TB

disconnect the 2 electrical connectors on the right side of the TB or remove these 2 units(small torx) if your 40mm TB doesnt have these fitted and you are swapping them over.

however

i recommend splitting the TB in car so you dont have to remove the fuel/coolant pipes and making more mess.if you choose to take the whole TB out you can see what pipes need removed.
just be prepared for fluid losses and try to prevent any spilling into the inlet manifold once the TB is removed.

so remove the other 2 bolts on the top of the TB. in the above pic they are already removed.

leave the 4 small torx bolts in the fuel regulator in the lower section of the TB in the pic as these dont need disturbed.

once all of the above are removed the top should be free of the lower TB section so can be moved to the side as much as the piping allows.
at this point inspect all the piping for cracks and damage.
repair/replace as appropriate.

remove the lower TB section and spacer from the car.

place a rag in the inlet manifold TB hole to prevent anything falling in there.
take care here as anything falling in here can get inside the engine!
a stray nut,bolt etc could kill the engine!


you should now have 2 parts like these

base
tb bases compared.JPG

top
tb.JPG

if you are swapping over components then fit them to the 40mm TB now

refitting



so you have a spacer and 2 paper gaskets

spacer.JPG

spacer being fitted.JPG

as you see this is placed in 1st.take care to ensure the inlet manifold face is clean to ensure a tight seal(oh remove the rag ;) )
ensure the bolt holes in the gaskets are aligned with the bolt holes.

now put the 2 long bolts in the 40mm TB
and place over the spacer.

now i used the bolts to hold the top gasket and spacer in place as i
carefull aligned it all.
take care to ensure the lower gasket doesnt move out of position.
it will most likely move a few times before you get it.

take you time here as a damaged/poorly fitted gasket will give grief later

once aligned bolt down the 2 bolts to torque(i'll try and find this out) or tight ;)
(if you removed the whole TB then skip this next bit but refit all the coolant/fuel pipes you removed)
now place the TB top back over the 40mm TB and bolt in place.

reconnect the throttle cable and electrical connectors

now get the airbox and place it over the TB.
refit the vacuum/breather hoses

push the airbox down over the mounting stubs and bolt down with the 2 nuts/spacers.
reconnect the airfeed pipe

reconnect the battery - terminal

start up



now once its all fitted.
fire the car up.
now with the battery being off and the TB being non OE spec it will run rough.
take it out for a drive but dont rev the nuts off it.
a short drive to make sure it works then back home to check for leaks and any other problems.

the idle will fluctuate up and down until everything settles so this is quite normal

after that its just a case of driving it to let the ECU learn its new parameters.