A650e rebuild Q's - Lexus IS Forum
User Tag List

 
LinkBack Thread Tools
post #1 of 10 (permalink) Old 04-12-2019, 02:36 PM Thread Starter
Newbie
 
Join Date: Mar 2018
Location: N/W MS 'yall
Posts: 26
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
 
A650e rebuild Q's

Good afternoon.
I've looked around and have seen dozens of vids on Youtube of the shift 'enhancer' mods for the auto's but don't see ANYTHING on doing a rebuild of them. (a trans-go kit and some change DOESN'T rebuild your auto trans BTW)

I'm noticing some minor problems/issues with my '02 shifting to 5th, and have to manually E-shift to 4th, then back to 5th for it to go into gear. I'd like to know if there's any ATSG type manuals? https://www.atsg.us/atsg/catalogsear...?q=Lexus+a650e

Also, didn't find anything when doing a search for rebuilding the A650e (even in the downloadable manual outside of fluid changes etc..)
And YES, I did a fluid change along with a filter/screen/gasket when I first got it. (150K mi)

Probably the biggest reason I want to do a motor/trans swap is the cost of just rebuilding the 'stock' trans let alone any high performance upgrades.
But until I have all the swap parts, i need to have this working to it's potential. (I'd rather NOT look at a $2500-$3000 "stock" rebuild when I can get a 'yard' trans and do it myself if I can get a kit..
AND that's NOT including a NEW converter)
ANY good info is appreciated.

ALSO, it looks like the a650e was used in a number of Lexus vehicles. So, does anyone have insight of swapping torque converters from lighter vehicles may give a higher stall, or different valve body or shift sensors from other model cars give better performance?

Thanks
E
rockosocko is offline  
Sponsored Links
Advertisement
 
post #2 of 10 (permalink) Old 04-12-2019, 03:06 PM Thread Starter
Newbie
 
Join Date: Mar 2018
Location: N/W MS 'yall
Posts: 26
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
 
OK, found a kit with special clutches I think.. (waiting on confirmation.)

So now just need knowledge on any special tools or the like.

Thanks
E
rockosocko is offline  
post #3 of 10 (permalink) Old 04-12-2019, 08:10 PM
Enthusiast
 
Join Date: Dec 2010
Location: Marietta
Posts: 1,338
Mentioned: 0 Post(s)
Tagged: 1 Thread(s)
Quoted: 305 Post(s)
           
Quote:
Originally Posted by rockosocko View Post
Good afternoon.
I've looked around and have seen dozens of vids on Youtube of the shift 'enhancer' mods for the auto's but don't see ANYTHING on doing a rebuild of them. (a trans-go kit and some change DOESN'T rebuild your auto trans BTW)

I'm noticing some minor problems/issues with my '02 shifting to 5th, and have to manually E-shift to 4th, then back to 5th for it to go into gear. I'd like to know if there's any ATSG type manuals? https://www.atsg.us/atsg/catalogsear...?q=Lexus+a650e

Also, didn't find anything when doing a search for rebuilding the A650e (even in the downloadable manual outside of fluid changes etc..)
And YES, I did a fluid change along with a filter/screen/gasket when I first got it. (150K mi)

Probably the biggest reason I want to do a motor/trans swap is the cost of just rebuilding the 'stock' trans let alone any high performance upgrades.
But until I have all the swap parts, i need to have this working to it's potential. (I'd rather NOT look at a $2500-$3000 "stock" rebuild when I can get a 'yard' trans and do it myself if I can get a kit..
AND that's NOT including a NEW converter)
ANY good info is appreciated.

ALSO, it looks like the a650e was used in a number of Lexus vehicles. So, does anyone have insight of swapping torque converters from lighter vehicles may give a higher stall, or different valve body or shift sensors from other model cars give better performance?

Thanks
E
There are a few companies that sell upgrade parts. As for a manual. I do not recall seen a PDK file. I do own a factory manual. I found it online a while back.

I would ask if you have a lot of experience with rebuilding electronic controlled transmissions? If not. I would just get Jeff at Powerdynamix Engine Performance Upgrades | PowerDynamix to build it.

Careful & Consistent
01 SolarYellow is offline  
 
post #4 of 10 (permalink) Old 04-17-2019, 08:51 PM
Frequenter
 
Join Date: Jun 2008
Location: Phoenix, AZ
Posts: 221
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 76 Post(s)
 
Quote:
Originally Posted by rockosocko View Post
Good afternoon.
I've looked around and have seen dozens of vids on Youtube of the shift 'enhancer' mods for the auto's but don't see ANYTHING on doing a rebuild of them. (a trans-go kit and some change DOESN'T rebuild your auto trans BTW)

I'm noticing some minor problems/issues with my '02 shifting to 5th, and have to manually E-shift to 4th, then back to 5th for it to go into gear. I'd like to know if there's any ATSG type manuals? https://www.atsg.us/atsg/catalogsear...?q=Lexus+a650e

Also, didn't find anything when doing a search for rebuilding the A650e (even in the downloadable manual outside of fluid changes etc..)
And YES, I did a fluid change along with a filter/screen/gasket when I first got it. (150K mi)

Probably the biggest reason I want to do a motor/trans swap is the cost of just rebuilding the 'stock' trans let alone any high performance upgrades.
But until I have all the swap parts, i need to have this working to it's potential. (I'd rather NOT look at a $2500-$3000 "stock" rebuild when I can get a 'yard' trans and do it myself if I can get a kit..
AND that's NOT including a NEW converter)
ANY good info is appreciated.

ALSO, it looks like the a650e was used in a number of Lexus vehicles. So, does anyone have insight of swapping torque converters from lighter vehicles may give a higher stall, or different valve body or shift sensors from other model cars give better performance?

Thanks
E
My transmission is doing the same thing for 5th gear. I just keep using the e-shift. I just keep it at 4 then when I get to a certain rom for 4th, I just change it to 5th. It’s annoying but I’m just dealing with it. If you find something to help this issue, please post it. I would like to try and get it fixed.
allturbo98 is online now  
post #5 of 10 (permalink) Old 04-17-2019, 10:48 PM
Extremist
 
Join Date: Mar 2013
Posts: 5,136
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 752 Post(s)
           
I bought a used transmission from Ebay. It was to my door for about $500.

techinfo.toyota.com.

If you sign up for 3 days for $15, you can download all the PDF's for the IS300 including the one for the transmission.

I've had 2 of these apart when I did my V8 swap. You need a monster snap ring pliers set to take them apart.







Personally, I'd buy a used transmission before I tried to rebuild. Transmission parts are insanely expensive. A couple shift solenoids cost more than a complete used transmission.
Ek9B18 is offline  
post #6 of 10 (permalink) Old 04-23-2019, 07:17 AM Thread Starter
Newbie
 
Join Date: Mar 2018
Location: N/W MS 'yall
Posts: 26
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
 
Quote:
Originally Posted by Ek9B18 View Post
I bought a used transmission from Ebay. It was to my door for about $500.

techinfo.toyota.com.

If you sign up for 3 days for $15, you can download all the PDF's for the IS300 including the one for the transmission.

I've had 2 of these apart when I did my V8 swap. You need a monster snap ring pliers set to take them apart.

https://www.amazon.com/gp/product/B0002STRG8




Personally, I'd buy a used transmission before I tried to rebuild. Transmission parts are insanely expensive. A couple shift solenoids cost more than a complete used transmission.
So.. YOU rebuilt a A650e 5spd auto out of an IS300?
Any knowledge on which solenoid might be the one in question? I have a few connections for new trans parts.
Did you do a "stock" rebuild or make any improvements like the Trans-Go kit?


Can't be all that hard. I've rebuilt a few GM and Honda auto's, and they operated fine.
That CR-V one was a pain though.
I mean, it's all of 1.5 feet of parts.

I know of an actual IS300 trans in a pull-it near me (if it's still there) that I can grab. But it was a light front end wreck and when I was trying to turn over the motor, it locked at one point. So I could only get to 2 of the converter bolts (meaning if I get that trans, the converter is gonna stay unless I can figure out why it's not rotating further)
Which brings me to the other point..
I'd still like to know if the converters are all the same, or if they were different for each model of Lexus/Toyota's or even the auto Supra's (THAT would be neat if you could swap in an auto Supra converter to give a 600-800 higher stall!!)
It's just amazing to me that when you call Toyota and ask a 'tech' they act like you cursed the holy grail by suggesting such nonsense..

One of my Ebay suppliers might know, and since I made some purchases with them, I think they should be able to find out!

Might take a bit, but I'll dig a little further in this and I'll be sure to let you guys know.

I Did order some Amsoil Super-shift racing fluid that has friction modifiers in it to give better 'bite' to the clutch packs. Kinda like using type-F in a GM trans.

We'll see..
E
rockosocko is offline  
post #7 of 10 (permalink) Old 04-23-2019, 03:18 PM
Fiend
 
Join Date: Nov 2012
Location: New Zealand
Posts: 464
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 118 Post(s)
           
I dont know about the converters, but i do know the spring packs used in the solenoids are different between the A650E used on the IS/Altezza 2J, the one used on the Altezza RS 3GSE, and the one used on the V8 LS/GS. Chances are the stall will be different as all those engines will have different torque profiles.

2001 Altezza Gita JCE10
Pnut00 is offline  
post #8 of 10 (permalink) Old 04-23-2019, 03:25 PM
Enthusiast
 
Join Date: Dec 2010
Location: Marietta
Posts: 1,338
Mentioned: 0 Post(s)
Tagged: 1 Thread(s)
Quoted: 305 Post(s)
           
Quote:
Originally Posted by rockosocko View Post
So.. YOU rebuilt a A650e 5spd auto out of an IS300?
Any knowledge on which solenoid might be the one in question? I have a few connections for new trans parts.
Did you do a "stock" rebuild or make any improvements like the Trans-Go kit?


Can't be all that hard. I've rebuilt a few GM and Honda auto's, and they operated fine.
That CR-V one was a pain though.
I mean, it's all of 1.5 feet of parts.

I know of an actual IS300 trans in a pull-it near me (if it's still there) that I can grab. But it was a light front end wreck and when I was trying to turn over the motor, it locked at one point. So I could only get to 2 of the converter bolts (meaning if I get that trans, the converter is gonna stay unless I can figure out why it's not rotating further)
Which brings me to the other point..
I'd still like to know if the converters are all the same, or if they were different for each model of Lexus/Toyota's or even the auto Supra's (THAT would be neat if you could swap in an auto Supra converter to give a 600-800 higher stall!!)
It's just amazing to me that when you call Toyota and ask a 'tech' they act like you cursed the holy grail by suggesting such nonsense..

One of my Ebay suppliers might know, and since I made some purchases with them, I think they should be able to find out!

Might take a bit, but I'll dig a little further in this and I'll be sure to let you guys know.

I Did order some Amsoil Super-shift racing fluid that has friction modifiers in it to give better 'bite' to the clutch packs. Kinda like using type-F in a GM trans.

We'll see..
E
Sounds like you may try this. Do not buy the Trans go shift kit.
The accumulators can be shimmed or buy the new double o-ringed ones that are built with the shims. Also you will need to set the pump to high pressure. There are a few other things. But they require a lot more work. Do not do any more stall. You would need the other work for it to survive. You will also need a aftermarket trans cooler.

Careful & Consistent
01 SolarYellow is offline  
post #9 of 10 (permalink) Old 04-23-2019, 08:03 PM
Extremist
 
Join Date: Mar 2013
Posts: 5,136
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 752 Post(s)
           
Quote:
Did you do a "stock" rebuild or make any improvements like the Trans-Go kit?
I wanted a V8 transmissions behind my V8 engine so I disassembled the IS transmission, disassembled the GS transmission. Traded tail shafts and then re-assembled. So I have the GS transmission in my car but I'm using the stock IS driveshaft. If I had it to do over, I might just buy a custom driveshaft for the GS transmission. There is an adjustment in the valve body to make stiffer shifts. You basically just turn a 4 position switch but it's not as hard as a shift kit.

The transmissions are pretty tough. Unless you're planning on some serious horsepower increase, I probably wouldn't mess with it.


When you disassemble, the manual shows you what to measure to detect wear. For example the GS front pump was pretty close to the wear limits.

Quote:
t's just amazing to me that when you call Toyota and ask a 'tech' they act like you cursed the holy grail by suggesting such nonsense..
Toyota is terrible about parts re-use. Unlike Honda, they think nothing of making parts that look almost the same but won't fit. Case in point is the GS front brakes which look just like IS front brakes but nothing fits. Not the caliper brackets or the calipers.

Unlike Honda, unless it has the same part number, I wouldn't assume it'll fit.
Ek9B18 is offline  
post #10 of 10 (permalink) Old Today, 07:21 AM Thread Starter
Newbie
 
Join Date: Mar 2018
Location: N/W MS 'yall
Posts: 26
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
 
To re-fresh a bit..
My IS-auto trans is showing signs of slippage and not shifting. BUT I still need to drive it as a daily.
Found another '02 IS in a pull it (if it's still got the trans) and wanted to get it, install in my car and do my own rebuild (parts =$500) to My trans and re-install (just to test if I screwed it up or not)
and that 'should' last till I get my GM ol school 327/2004r. ..who knows, if that trans is STILL there and I use it, it might shift and act totally different than mine (yard trans at 176k mi)
I'm NOT keeping the 2Jz or either of the A650e's I've read and heard that the A650e is 'suposedly' a tough trans. But it doesn't seem like it's doing too good in my car so far with less than 150k on it. And EVERYONE seems to want it to shift differently/firmer..

And asking about the converters etc was that If I have them out already, I might as well try another converter if it would help.
The external cooler will be going in regardless, and totally by-passing the radiator! It doesn't get that cold here in the Mid-South. But it DOES get hot! (just ordered some Amsoil racing auto trans fluid to see if that will help at all. Should find out early next week)

Read over your GS400 trans work, and it sounds good. How's it working so far?

Sorry, just got off work and I'm tired. Can't think straight.
Later.

E
rockosocko is offline  
Sponsored Links
Advertisement
 
Reply

  Lexus IS Forum > 1st-Gen IS300 > Go Fast Stuff

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Lexus IS Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself. If your address is invalid, you will likely lose access to the site.

Email Address:
OR

Log-in











Current users viewing this Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Shifter rebuild kit suggestions? jerry-l General Discussion 1 09-17-2018 05:32 AM
A650e Transmission Controller Pynoxim Go Faster 4 08-25-2017 09:47 AM
Opinion about Rebuild Engine or Aristo Swap (Turbo) eoe021 Go Fast Stuff 23 05-21-2017 09:14 PM
A650E Tranny controller Vann General Discussion 0 01-17-2017 04:39 AM
Powerdyne Bd11a Supercharger Rebuild D.I.Y az989 Go Faster 1 04-19-2016 09:24 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome