How difficult is it to replace a 2008 G37s CSC, Clutch, and flyweel? Also, does anyone know where I could buy non-OEM parts in the Phoenix, AZ, USA area? I don’t really have time to wait for shipping.

About 2 months ago I had to replace the clutch mast er cylinder on my car. Today, my clutch pedal lost all resistance and the clutch fluid reservoir was suddenly bone dry. My assumption is that the slave cylinder failed and now the clutch and flywheel are probably destroyed due to the brake fluid leaking.

I am trying to determine how difficult it is to drop the transmission and swap out the parts. I know it's a lot of work, but all the videos I've seen make it seem rather simple. remove a bunch of bolts in order to remove the exhaust, driveshaft, and drop the transmission along with some electrical wires and disconnect the shifter. Then you unbolt the CSC, clutch, and flywheel. Reassemble everything, fill the hydraulic system, and then bleed the line.

So it looks like something that I could do as it doesn't seem to require any special skills but does require a lot of time.

Also, does anyone have an estimate on how long it would take to do all of this for someone who's never done it before?

 

About 2 hours for a knowledgeable person with the right equipment as long as the removable parts cooperate.
3-4 hours depending on you, any extra help, power tools, parts cooperating.

Removal of the transmission = Drain+ removal of exhaust + DS + trans mount+ shifter removal
Removal of the CSC and replacement
Bleeding of the line.

Make sure you get a clutch disk alignment tool (Comes with most disks)

Torque wrench for the pressure plate if you dont trust your tightening skills

I suggest you tackle this on a weekend, watch as many videos as possible and equip yourself with some power tools, disassembly might be ok without them but hands and forearms get tired turning wrenches 1/4 turn at a time.

Good luck!

 

I have some DIY mechanical experience doing tie rods, half axles, intakes, struts, etc. and it took me 2 full days. That being said, one of those 2 days was spent on just trying to mate the transmission back up to the engine which was incredibly difficult for some reason even with a transmission jack. So I would recommend you dedicate a whole weekend to the project to be safe.

For me, from a financial perspective, it would be well worth paying a shop to do it, but I really like wrenching on my car so I chose to do it myself.

There are some great videos on youtube and the FSM is very helpful too.

Make sure you have a transmission jack, 4 jack stands that can hold your car at least 22 inches above the ground, a jack that can lift your car that high, an impact wrench, 1/2 inch extensions with u-joints that can reach at least 2.5 feet (to get up inside the transmission tunnel), and all the various sockets and so on that you'll need (they're listed in the youtube videos).

Good luck!