Pillsbry10

iTrader: (1)

Maybe YOU should read the first post instead as I've read the whole thread

You can see there's a bushing in there and the motor came from a manual trans truck so there has to be a bushing if the op hasn't removed one.

Grinding tq converter was a bad idea I wouldn't use it now either

Trashing parts is part of learning sometimes... I'd bet he doesn't do that again

Gumby

Ive helped do allot of trannys and never seen a TC that went into the crank end, only thing that touched the engine side / flex plate was the spots where it bolted to the flex plate.

I read the first half n end, and still sound like he is insiting on using a manual flywheel with an automatic or some strange config that ain't gonna work.

Pillsbry10

iTrader: (1)

As crazy as that sounds.... Are you using your original flex plate or the flywheel from s10?

evilemokid94

iTrader: (6)

im using the flexplate that come on the orignial moter in the camaro, i thought it was a flywheel . going to tackle it tonight.

project89

iTrader: (1)

let me put into perspective what u just did when u ground the pilot on the converter
and why u should not use it

#1 u have a 10.5 inch round steel converter that wieghs what aproximatly what 35 pounds
#2 the pilot centers the converter so i spins true, the converter is also balanced
#3 if u ground that thing off center or if its to loose in the crank and its allowed to move even 1/16th of center u now have a massive wieght thats now unbalnced and centrifugal force will try to launch that thing outwards

granted at only a 1/16th or 1/8th inch off center dont seem like much, but when i have that much wieght of center turning 4,5,6000 rpm the forces are really up there

this will do one of a few things
#1 more then likley crack the flexplate
#2 destroy the front bushing and input shft on the trans
#3 or lot worse

wnt to see an eample how something a lil out of balance can throw things wy out of wack???
take any car and remove a wheel wieght off a front tire and take it for drive, hell add a .5 ounce wieght on the front tire were it shouldnt be and tke it for drive at 50 mph and watch what happens to the steering wheel while u drive

Gumby

The bolts holes should center it, never seen one that had slop or slooted bolt holes so it could move around it, bolts on in one place. Like a car rim, the center hub means little. [rim with center caps, have to not fit tight, the bolt holes center the rim, [just got done swaping some tires around]]

Though your right about removing metal, it could now be off balance.

project89

iTrader: (1)

most have a lil slop in the flexplate to converter bolt holes,but even without the slop the stock flexplate flexes alot, this is what an off balance converter does to a stock flexplate after a few hundered miles



at hi rpm it could have thrown the converter right out of the bellhousing

Six_Shooter

iTrader: (2)

EVERY flex plate I have seen has slotted and/or larger than the bolt diameter holes in it. I have not seen a torque converter yet that doesn't locate in some way to the center bore of the crank end.

The comparison of rims is different, since most wheels use tapered seat lug nuts, which will center the wheel, this is known as "lug-centric." All OEM wheels however DO center on the center bore and are known as "Hub-centric." I prefer hub-centric over lug centric, since this not only centers the wheels perfectly, but also reduces the side load on the lugs of the car's weight sitting on the wheels, since the wheel's center bore will be against the hub and transfer the load that way.

If the torque converter pattern was exact pattern, and used tapered seat (recess head) type bolts, or nuts, then the center bore alignment wouldn't be as critical.

Gumby

OK I went out and looked, didn't want to as my back is killing me. But low and behold the TC in my s15 has a shaft on it that sticks out about 3+ inches like a stick shift end shaft.

never seen that before. Though I also have never worked on a 700.

I know both of the TC for my TH350 don't touch like that, only the mounting pads touch the flex plate. One stock 14in and a aftermarket 12in. Centering with the snout that goes into the tranny pump is probably enough.