ss_girl

iTrader: (9)

We're putting in my 4l80e with the TCI flexplate and it's very tight between the converter and flexplate. Usually I have to pull the converter to the flexplate just a bit. This one is pretty much flush. I'm using a yank converter also. I just wanted to see if this is normal or if we should be worried.

DanZ28

iTrader: (5)

There should be gap there and that clearance is important for the pump, one of the experts can chime in on that.

Is the TC completely seated in the trans? I think ther should have been 3 clicks to seat it.

ss_girl

iTrader: (9)

Yes the converter is fully seated. I can get the measurement from the converter to the face of the bell housing if that would help any.

DanZ28

iTrader: (5)

Wish I could be more help on the measurements, I just don't have a 4l80 or I would go under the car and see what mine is.

So, does the TC pads actually hit the flexplate, you cant spin it around when the trans is all tightened down?

daniel6718

iTrader: (36)

u should have about 1/4 inch between them 2 when installed then have to pull it to the flywheel...if theres any slop there at all id say its fine...they are built to have that 1/4 inch anything less should be fine as long as its got something

DanZ28

iTrader: (5)

heres good instructions from Rossler on what that gap should be http://www.rosslertrans.com/Converter-spacing.htm .

ss_girl

iTrader: (9)

Since mine is too tight should I shim between the tranny and engine block? It is basically flush with one another. I can turn the converter but it rubs on the flexplate where the mounting tabs are.

cablebandit

iTrader: (37)

something isnt right....dont drive it like that. sounds like the converter isnt seated all the way. all of my 80e converters have been hard to seat the last click...dunno why

theblur98ss

iTrader: (71)

I'd loosen up the tranny and see if you can get any more out of the converter.

DanZ28

iTrader: (5)

My TH400 is the same way, that last click is a PITA and drops in about another 1/4" worth. Do not shim the tranny from the block.

ss_girl

iTrader: (9)

OK I'm officially frustrated. I just spend 2 hrs under the car. I wiggled, twisted and turned the converter every which way and nothing has changed. I got the tranny loose from the block but it appears to be all the way in. Is there any way I can check or a measurement. I'm starting to wonder if one of my parts is out of spec.

DanZ28

iTrader: (5)

When you spin the TC on the tranny, can you tell if it's engaged with the pump?

Mark the converter in relation to the tranny and pull the TC exactly straight out. Look at the end of your TC and the orientation of the slots, then look inside the tranny next to the input shaft and see the orientation of the notches to see if they match up. I think this will help tell you if it was seated or not.

Dan

Sweet71

iTrader: (10)

I had issues with my converter as well in my 80e it took a while to get it seated but when it was all said and done i had about 1/4 of a gap and the converter spun freely, it is also a yank converter.

Z'mnypit

iTrader: (58)

Do you have the stock flexplate to try and see what kind of gap you have then? You may have to take the trans out to make sure the converter is all the way seated as its kinda heavy.

ss_girl

iTrader: (9)

Ok I just pulled the tranny and I can't get the converter to go in any more. I put a board across the face of the tranny and I have 7/8" from the converter mounting tabs to the board. I don't have a stock flexplate to check. What is sold hard about the 'last click' on these converters? What's the trick to getting it to seat? I've turned and wiggled every which way, back and forth and nothing.

cablebandit

iTrader: (37)

look in there and you will see the 2 flat spots on the pump gear that the converter mates up to....clock the converter properly and try to slide it right on and you will only have to turn it a little left/right. I just did one tonight that had been on several thousand miles but it still took a little monkeying to get it to seat. i forget how far it is from the converter/flywheel mounting tabs to the end of the bellhousing but 7/8 aint enuff i dont think... i had to pull the old fuddle up about 3/16 to my tci flywheel on my 4l80 tonight (sending in my awesome Yank for a restall)

theblur98ss

iTrader: (71)

I just found an old post and it had the bell to verter measurement at 1.030 on a 4l80e. I also found alot of posts with people having similer problems. One guy even stood the tranny up on end to get it in.

ss_girl

iTrader: (9)

Very good info Cable about the 2 flat spots. I just went out and tried that. The coverter is fully engaged at the 7/8" depth. I got everything lined up, got the 3 clicks, gave the converter a 1/4 turn and the flat spots turned with the converter. So now what does this mean. I may start a new post.

cablebandit

iTrader: (37)

my yank had to pull up as well....bout 1/4"...i will measure mine tomorrow

DanZ28

iTrader: (5)

Could have swore I mentioned that above .

Anyway, is anyone else using the TCI flexplate with the 4l80? I tried selling my TCI flexplate to my buddy a couple days ago and he said it won't work with his 4L80/TC, it was different, so idk. Just throwing stuff out there now...