Transmission guys .. Please . ???

Ok . i have a 350 motor that came with fly wheel and torque converter attached ...not sure of what tran was bolted im thinking a 2 speed or th350 . not sure .

I had a Th350 laying in the shop . installed the torque conveter That came with motor) to the tranny spin it till it sets it and knocks but when i mate it up to motor and bolt up theres no way in hell to get it to spin its pressed right up to the fly wheel hard.

are torque converters interchange able in powerglide and th350 >>?
are they diffrent depths >? any thoughts ?

 

thanks in advance

 

please ?

 

The powerglide has a smaller input shaft then the th350,

Did you turn it and feel it set three times?

 

i believe the powerglide and the th350 use different torque convertors

are you sure you have it all the way in and the pump engaged?

 

I put it on the shaft and get it to sit once . then I spin it and it sets back and knocks once . ... could i have a powerglide torque converter ?? how many time should it knock 2 or 3 if i have the power glide would it even knock and slide back once >? thanks .. and help .

 

I put the torque converter on the tranny and turn it .... really only knocks and moves back once . ..... would a power glide even go as far as knocking and sliding back once ?

 

are power glide torque C and 350 torque converters able to be ID'ed just by looking at them .... meaning size ....?? pissed and stressed ... thanks for everyones help

 

The Converter should "click" 3 times.. when it first goes on it will seat, we'll call that #1, now spin converter til it sets in again,that will be #2 then repeat for one more "click"..That will be number 3. If you can only get 2 clicks...the third click is when the spline of the input shaft engages into the converter splines, so good possibility the the splines do not match and you have a POWERGLIDE convertor.

 

Got an old powerglide around??? the input shaft pulls right out..see if it lines up with the splines in that converter

 

no powerglide handy

 

I believe you should only have about a finger's width between the converter and back of the bellhousing. It should click 3 times; the last one can take a lot of turning.

I torched a TH400 the first time I installed a converter because I had no idea what I was doing. I fed it up to the block with the bolts. Gotta learn somehow I guess.

 

Bump

 

If it's tight against the flywheel it's not on all the way. When properly seated you will have to pull it forward a 1/4" or so to bolt it up to the flywheel. Take it back off and do the installation over.

Frank

 

ok so todays update ... i got it to sit all the way down ..3 clicks . but when i get it on the motor . theres no way for it to spin.. yet i have a gap between the torque conv and the flywheel , seem like issue is at the snout where it meets the flywheel... can that be to tight ....??

 

So... let me see if I get this. You have some "350" engine and it came with some torque converter bolted to it that you know nothing about. You want to bolt this transmission you have laying around to this engine and use this unknown torque converter in this engine/trans package?

What is your goal here? Doesn't sound like you have much hope of having something very compatible even if you get it bolted together...

Anyways, years or application of either the engine, trans, would help. Pics would be huge. One idea would be to use a straight edge across the trans bell housing and measure to the converter pilot then do the same from the end of the crank to the rear face of the block and then do the math to see how much interference you have. That distance may help determine where the problem could be..

Some other questions that cross my mind is if you say this converter was bolted to this engine, why won't it fit now? Sounds like it is hitting the crank but not up against the pads on the flywheel? What changed and what happened when you took it apart? Different flywheel? What if you hold the torque converter up against the engine and flywheel? Does it fit then? Was this engine and converter run before together or is this some mess you bought and know nothing about it's history or where it came from?

Your story doesn't add up to me..

 

Does kinda sound screwed up. Post a picture of what you have going.

 

Def. post a pic!!! You got a flexplate on there right?? not a flywheel..right?

 

That was my first thought

 

If I am understanding you correctly, you're putting the converter back on the engine it came off of so it should fit. Align the bolt holes with the ones in the flexplate. The nose of the torque converter can be a bit tight in the crankshaft but if it came out, it should go back in.

 

Flexplate or flywheel?

 

Could be a convertor for a 200 metric. As I understand it, they will fit in a 350, but bind up when mated to an engine and pump a lot of shavings into the tranny when the engine is started.

Blue

 

Load the trans and the converter up in your truck and haul them to a trans shop. Find out what you have. There are at least 10 different combos i can think of.

 

Can't any guys out there who have powerglide give him a shaft diameter and number of splines and he can go check what he has on his 350 tranny.
That should get close to solving the issue for now...

 

Powerglide and TH350 are definitely different splines.

P/G = 17 tooth input shaft
TH350 = 30 tooth input shaft

They won't interchange in stock form. However, without pics I have no idea what converter, engine, or even trans he has.

It could be he has a 700R4 converter or trans that has 27 teeth...

 

If you're intentions are to use the 350 trans, then go and buy a torque converter. Don't use some unknown part. The powerglide and th350 use different converters. You might get it to line up and bolt together, but that's about it. TH350 converters can be had at a real reasonable price. Ken

 

thanks guys . bent flexplate was holding t converter

 

I can see that happening if someone pulled an engine but left the TC attached.

Can you explain the Oprah obsession someday ?

 

???????

If you're changing to a different type of transmission, then change the converter too.
it's a no brainer here.
Converters are cheap compared to wiping out your pump or worse.

Also, I can't see your installation, but you might need a different flexplate for the different trans. They're cheap too.

I see more wannabe rodders wipe out their trans due to converter issues than any other.

Had a guy here last month, Royally pissed at us because when he installed the trans, the car didn't move.

Smashed pump gears you say? Nope, not this time. THIS time, he had the wrong converter/flywheel combo and the converter engaged the pump gears about 1/16 of an inch, and took the ends clean off.

I digress, but before you do ANYTHING else, make sure youn have the right converter/flexplate combo for your application, or it'll cost you much, much more than a converter!