The keen-eyed among you would see the clutch hiding on the floor in the last few photos. That's because I am skipping around.
Removing the transmission was . . nearly impossible. Truly terrible. I managed to unbolt everything, remove the transmission mount, remove the shifter, etc. The transmission was completely disconnected - nothing holding it in place other than a transmission jack - and it took me another 3 hours to remove the thing.
The engine wouldn't tilt back enough, so I disconnected the exhaust pipe where it meets the header/downpipe.
Even tilted, the bell housing was pushing hard into the transmission tunnel, so the subframe has to drop a little. Loosened some bolts to let that down more.
With the subframe dropped down, the steering U-joint got tight and I had to remove it. Naturally, I did this in place (without lifting the engine back up) so I boogered the threads and ended up replacing the U-joint later. Thankfully IS300s are currently plentiful at local junkyards.
Even with the subframe completely unbolted and resting on a jack, I had to pry and wrestle the transmission out of the tunnel, including turning the whole thing about 90 degrees so the clutch fork faced down. The tunnel is just too small to slide the transmission rearward to clear the clutch assembly with the input shaft.
With the transmission removed, I could replace the rear main seal and the pilot bearing.
Rear main was easy enough - I blunted a screw, carefully drilled through the seal, and used the screw to pull out the seal.
Next came the pilot bearing, and I got to use my favorite trick - BREAD! Some people use grease, but I like bread better. Less messy.
You take a slice of bread, ball it up, and put it into the hole in the pilot bearing. You keep packing and hammering into it until the bread starts pushing the bearing out. It's whimsical and brilliant. Cleanup is easy too.
I cleaned up some of the oil . . which is a problem for another time.
With that all done, I installed the new flywheel, clutch, and pressure plate. This is a Supra single-mass clutch conversion. The dual-mass unit is heavier and notoriously difficult to machine. All Toyota OEM parts here. See this link for details:
When it came to reinstalling the transmission, someone was smiling down on me because it took 15 minutes to get it aligned and install the first few bolts. Go figure. Torquing all of the bolts was another story, especially the starter bolts which are at about 10 o'clock if you're looking forward. I used truly cursed combinations of extensions and universal joints for that, but the torque wrench clicked so I'm happy.
Still a bit grimy but so am I, and who's keeping score?
The clutch had been squeaking when actuated, so I shotgunned a new master cylinder, slave cylinder, and soft line into the car while I was at it. I also deleted the Clutch Dampening Device (CDD), which is basically an orifice valve with some convoluted geometry inside.
Adjusted length to match:
CDD replaced with a brass union:
Bleeding the clutch was surprisingly easy thanks to a tip from a friend. Keep in mind the system was completely dry. His recommendation was to bleed from the bottom up. I have this kit from back when I still had a classic Mini:
Auto brake bleeder. A spare tire provides all the power you'll need to bleed brakes as professional. A hose connects the spare tire to the master cylinder via a special cap. Caps are included to fit almost any British car. Simply open the bleed valve and
www.minispares.com
I cut off the end of the hose that used to connect to the Mini's master cylinder reservoir cap and used a section of silicone hose to connect to the bleeder on the slave cylinder. With the little bottle filled with brake fluid and the help of a friend, I connected the tire chuck to a tire that we'd lowered to roughly 20 psi. I opened the bleeder and the system filled from the bottom all the way up into the reservoir!
After a few manual bleed cycles (pump, bleed, lift the pedal) the clutch was bled and no more air was coming out. Easy!
The first few engagements on the new clutch were pretty darn jerky - the thread I linked above has varying comments on clutch chatter, so I was pretty nervous about it. The pedal feels super different, the engine revs faster, the car legitimately feels faster to accelerate even if it's just placebo. I'm getting used to the new clutch feel and the chatter is definitely fading away now, so I hope it subsides completely. Some folks report no chatter at all and some advise to just get used to it. I've never had to break in a clutch before and have replaced my fair share, so maybe this is just an idiosyncrasy of this car.
Regardless, glad to have the car back on the road. Probably time to do rear suspension links next, as the car has a pronounced wheel hop if I'm real heavy on the skinny pedal taking off.