pressure plate grinding on tranny?? - Toyota Nation Forum : Toyota Car and Truck Forums

'88ROLLAGTS · 02-06-2006, 02:16 PM

i just got done re-installing my tranny for the second time in the last week, the fist install went smooth untill start up. i was convinced that the input shaft on the tranny was bad after the flywheel came loose at 7krpm (crappy work by the previous owner). so i bought a used one and installed it only to have the same noise come from it on start up. after dissconnecting everything again and pulling the trans i noticed a gouge in the inner part of the tranny case. after swearing and throwing some tools i really looked closly to see that the pressure plate rubbed ever so slightly on the case. the only thing that i did differently was replaced the ae92 flywheel with a aw11('86mr2) flywheel. from what i gathered off the internet and what friends have told me is that this is perfectly fine to do. i cant seem to figure that the clutch/flywheel from a c52 mr2 wouldn't fit a c52 in a ae92. can anyone help me figure this out? or does anyone think it would hurt to let it clearence itself??

Flashmn · 02-06-2006, 03:12 PM

Is the diameter different?

Quote:

or does anyone think it would hurt to let it clearence itself??

Yes its gonna hurt. I wouldnt never let it happen.

bob022004 · 02-06-2006, 04:54 PM

when i was researching my clutch i found that there are two different sizes. a 200mm and a 212mm. but the way i read it the overall diameter of the flywheel is the same and the different sizes refered to the diameter of the friction face.

i dunno if this would help at all but when i was putting mine back together i had a similar problem and it turned out the tranny was not quite lined up right. make sure all the bolts are there, tight and lined up perfectly, especially the top ones (be able to run them down some by hand indicates you got the holes lined up just right). if it doesn't try slightly twisting the tranny one way or another to line the holes up.

'88ROLLAGTS · 02-06-2006, 06:00 PM

huh.. my buddy (or so i thought) works in oem and performance clutches said that there was no difference between them. but you sound like you know more than he did. if this is true could one use an ae92 clutch with an mr2 flywheel?

bob022004 · 02-06-2006, 07:46 PM

i checked fidanza and the part numbers are slightly different. i'm pretty sure the AW11 uses the 212mm and i know ours uses the 200mm. I made sure the engine code was 4AGE so they can't be that much different. like i said i'm pretty sure its the diameter of the friction face. I'd do some measuring just to be sure before i use an AW11 4AGE flywheel. and i'd make sure i had the matching friction disc (212mm or 200mm) on the clutch side.

canadianae92 · 02-06-2006, 10:49 PM

Theres actually 3 different flywheels, 200mm 212mm 228mm(4agze, I'm pretty sure 228 is right well its 22X for sure).

bob022004 · 02-07-2006, 05:05 PM

i wasn't even gonna try and add the gze stuff onto it. confusing enough for 2 different flywheels for the same motor/similar tranny.

canadianae92 · 02-07-2006, 08:36 PM

Well I know for a fact 91+ 4ag(n/a) and probably 88-90 but I think 1990 does have 212mm flywheel the 20v's also have the 212mm flywheel "i think".

toyotaspeed90 · 02-08-2006, 01:08 AM

all ae86's have a 200mm
all ae92 gts's have a 212mm (c52 trans)
all ae92 non gts have a 200mm (diff bolt pattern)
early aw11's have a 200mm (c50 trans)
later aw11's have a 212mm (c50 or c52 trans)
all aw16's, ie s/c models, have a 228mm (e51 trans)
20V's all have 212mm (c52, c56, or c60 trans)
not sure what the ae82's have.....

if you're SURE it isn't an s/c clutch/flywheel (which yes, will bolt onto an n/a 4age) then you shouldn't be having ANY clearance issues in a C series bellhousing

bob022004 · 02-08-2006, 12:20 PM

not quite on that ae92 size. my ae92 gts has the 200mm.

'88ROLLAGTS · 02-08-2006, 03:26 PM

Im positive it isn't a s/c flywheel cuz i saw the motor it came off of. it was from a '86 mr2. my (other/more credible) buddy says that i could shave the case down a bit for clearance. we looked at the old tranny that was thought to be bad and noticed that the "gouge" from the pressure plate was only a millimeter deep(if that). so we think that its possible(correct us if were wrong please!!) to safely shave a small amount of the case off without compromising the strength if the tranny to gain the clearance needed to run it.
The thing that really bugs me is the fact that the mr2 that the flywheel came from was equipped with a c52 trans. and from what ive heard the c52 is the same no matter what car it came from, with differences in shift linkage and a few other non flywheel/clutch factors. when i started the car originally and heard the terrible noise i was quick to assume the trans was the problem. but i had forgotten that when it was running (for about 5min) i had noticed that the noise went away or started when i released the clutch pedal. both my buddy and i find this very strange that it would grind when there is no pressure on it, we know every thing is tightened properly because that is the reason why i tore it apart in the first place.

toyotaspeed90 · 02-08-2006, 03:37 PM

Quote:

Originally Posted by bob022004

not quite on that ae92 size. my ae92 gts has the 200mm.

then someone has swapped it out in your car.... the 212's started in 87

'88ROLLAGTS · 02-09-2006, 04:45 PM

I think im gunna try shaving it. then try to put it on the road one more time. if that doesnt work than im done with corollas till i can afford to have someone else fix them for me! i have two (sedan '90 and gts '88) the gts has been a project for a year. i owened it for 1 month (the best month of my life!!) then it broke suddenly, and has been sitting ever since. before i got it i had been searching for 5 years for a gts running into every imagineable problem like the seller uping the price 100% at the last min., or moving to colorado with no word, or the car getting wrapped around a tree the night before the purchase. this was frustrating. then i finally found this one, but i was fought from every angle before i got it. for example.. the lug nuts on my buddies mr2 started falling off on the way to the guys house then the guys daughter passed out for no aparent reason while i was looking the car over. then to top it off one of the $100 bills i had got from the bank was a fake!!
my other rolla is a '90 sedan (4afe) that has blown struts a massive tranny leak, and now im getting a "MAT" (yes thats maT) sensor code flashing that is giving me terrible mpg, and to top it off i think my starter is going cuz i turn the key and nothing happens for a second then it starts badly. my luck with corollas is bad but i love both of them so much, especially the 4door sedan cuz it just feels right!!