Torque converter installation question

[MOYotas]

I'm in the middle of a engine swap on a 2000 Limited 4wd with 200k. I bought it cheap needing a new motor. The original engine was seized and I was able to get it unseized and running but the HG's were blown (radiator failure). I'm just about ready to put my replacement engine in but have a question about proper torque converter installation. When I pulled the old engine I just unbolted the transmission, accessories, and unplugged all of the engine wiring harness. The torque converter came out with the old engine loosing some fluid. What is the proper way to install this torque converter? From searching around, I've read you have to install it onto the transmission first to get it lined up with the splines then install the motor and then bolt it to the flexplate through the coverplate, is this correct? All of my other/previous Toyota's owned have been 5 speeds, so I'd rather do this right the first time and I thought I'd ask just to be sure...

P.s
Is there anything I should be replacing for the transmission (i.e gaskets/seals...etc) before bolting them back together? I have new flex plate bolts. Plus, I have replaced almost every gasket/seal/maintenance item on newer motor already since it was out and easy to work on.

 

[audiness]

You're correct. You have to slide the torque converter on to the transmission output shaft and make sure it is fully clicked in . It's best to make sure it's full of fluid before you do this but fluid will get pumped in anyway so it really doesn't matter . You then bolt the trans to the engine. once that's done you crank the engine 1/6 of a turn ,as you put each of the flywheel bolts through no flex plate/flywheel into the TC.

 

[snivilous]

Fill the torque converter with fluid and then it slides onto the tranny, mate the tranny to the engine, bolt the flex plate to the converter through the cover.

 

[mtbtim]

I'm in the middle of a engine swap on a 2000 Limited 4wd with 200k. I bought it cheap needing a new motor. The original engine was seized and I was able to get it unseized and running but the HG's were blown (radiator failure). I'm just about ready to put my replacement engine in but have a question about proper torque converter installation. When I pulled the old engine I just unbolted the transmission, accessories, and unplugged all of the engine wiring harness. The torque converter came out with the old engine loosing some fluid. What is the proper way to install this torque converter? From searching around, I've read you have to install it onto the transmission first to get it lined up with the splines then install the motor and then bolt it to the flexplate through the coverplate, is this correct? All of my other/previous Toyota's owned have been 5 speeds, so I'd rather do this right the first time and I thought I'd ask just to be sure...

P.s
Is there anything I should be replacing for the transmission (i.e gaskets/seals...etc) before bolting them back together? I have new flex plate bolts. Plus, I have replaced almost every gasket/seal/maintenance item on newer motor already since it was out and easy to work on.

You've got it right. Get the torque converter onto the transmission first and then fit the transmission onto the engine. You have to get the alignment pins lined up and the transmission and engine should mate up. An actual transmission jack will help out with getting the right angle for the trans and engine to line up. Having one of the torque converter threaded holes in the right position will help facilitate you getting the first bolt in. Once the first bolt is in mating the flex plate with the torque converter, you just turn the crankshaft clockwise until you can get the next bolt started. Having a friend doing the crankshaft turning for you is helpful. Once you have all the bolts started by hand, go around and bring the bolts up to tightness evenly until you reach the torque spec.

The video below is Part 3 of a 3 part series. It will demonstrate everything you need to do to get the transmission back in and all the associated parts reconnected and torqued to the proper values. Good Luck!

<iframe width="560" height="315" src="https://www.youtube.com/embed/T4YY3IfnzaQ" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen></iframe>

 

[MOYotas]

Awesome, thanks guys!

 

[01thunder]

replace the seal while you are at it, the one where the convertor goes. you don't want that leaking after install, or you will be dropping the trans to do it. did you replace the rear main seal on the engine? make sure you ad a little blue thread locker to convertor bolts and tighten to proper torque in sequence. i did it by myself when i replaced the trans on my truck. perhaps you need help, so have someone turn and hold the engine using the crank bolt.

 

[MOYotas]

replace the seal while you are at it, the one where the convertor goes. you don't want that leaking after install, or you will be dropping the trans to do it. did you replace the rear main seal on the engine? make sure you ad a little blue thread locker to convertor bolts and tighten to proper torque in sequence. i did it by myself when i replaced the trans on my truck. perhaps you need help, so have someone turn and hold the engine using the crank bolt.

Rear main has been replaced. I was wondering if there was a seal I should replace that the TC mates to. Happen to know the part number?

 

[01thunder]

input shaft seal on trans. replace it. coat convertor with trans fluid before installing.

 

[alanflies]

Just make sure the converter is fully engaged with the shaft and the pump. you may have to spin it a little to get all the way in.

 

[19963.4lsr5]

The input seal should be replaced and my friend who's dad owns the local trans shop says anytime the TC comes out the seal and bushing should be replaced.


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