3B clutch job pics, questions

[amaurer]

I've got everything out and ready to start puttin in new parts for my BJ42 clutch. Heres a few pics of BJ42 innards as my contribution to the Great Interweb, and with them a few questions...

Pic 1: "stuff"

Pic 2: All of the springs in the old disk were broken in some way; either missing coils from the ends, separated in the middle, etc. Is that a big deal? Sign of abuse? Just curious. Any way to tell if thats the original clutch disk?

Pic 3: I had the flywheel resurfaced, but the shop didn't want to do the friction surface AND the mounting surface. They said they were worried about cracking if they pulled the pressure plate pins. The flywheel before resurfacing looked great, no grooves, no cracks, so I told them to take off as little as possible and they assured me that doing just the one surface wouldn't cause a problem... discuss?

 

[amaurer]

Pic 4: I tried the pack-with-grease method of pilot bearing removal which DID NOT WORK!! (I didn't think it would, but it sounded kinda fun, so I gave it a go). The grease ended up blowing the shields off of the bearing, and squirting in my face. This is just a pic of my version of the ih8mud custom pilot bearing removal tool that DID work.

Pic 5: This is my dilemma: the rear main seal seems fine. I have a new seal, and I'm obviously very close to the issue, however I have fxxxed up a rear main seal in the past (in my defense, it was that AMC 258 two-piece seal that sucks, a lot) and made more problems for myself. Does anyone know anything about 3B rear main seals? do they last forever? I really don't want to touch that thing, once bitten twice shy...

 

[pportmd]

...we can't see the main seal on picture #5, See photo #1 on entry #60 (page 2) of my resto thread. The orange ring is the seal.

 

[amaurer]

heh, yeah i know you can't see it; i posted a picture just to show that the back of the engine is bone dry. if you guys tell me "only a fool wouldn't replace it", then i'll take that one additional cover off to get at the seal.

 

[pportmd]

There can be a leak behind that cover. I would take it off to check it at once since you are so close to it by now.

 

[amaurer]

I guess thats wise. I must be the laziest person on this board.

 

[dslcruzr]

Mine was not leaking, and after replacing it it does leak a bit. I had a decent groove in the crank and I used a aftermarket seal (when I redo it I will definitely use a toyota seal and maybe a speedy sleeve). So I would probably leave it if it is not leaking at all. As far as your broken springs go, it is usually a sign of abuse, (dumping the clutch at high revs).

 

[amaurer]

ok, heres a picture of the actual seal. the moisture at the top of the photo is PB blaster; the cover was a bit stuck. the seal seems bone dry, I intend to leave it alone unless someone has compelling reasons to touch it.... ??

anyone know anything about my flywheel question? thats all i remain concerned about.... thanks in advance.

 

[pportmd]

Flywheels have no reason to go out of balance with use. If all the teeth around the edge are healthy I would not worry about it. They do not rotate suspended on bearings and thus no reason for metal to wear off unequally to create an imbalance like with a cam or crank shaft with all the associated hardware that rubs against these as they rotate at high speed. The main message with flywheels is to make sure the friction surface is very clean, free of any grease or oily substance so the clutch plate grips to it without slipping.

 

[pbgbottle]

wouldn't you have to do both surfaces to keep proper clutch disc pressure .from the pressure plate.i have not seen a toyota pressure plate in awhile. but when they did my 2f they pulled the pins out and did both surfaces .