Tranny Rebuild -Shadetree Mechanic Style

Discussion in '80-Series Tech' started by Cruiser Jimmy, Nov 2, 2005.

  1. Cruiser Jimmy

    Cruiser Jimmy Moderator

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    Fellows, I've decided to rebuild my tranny myself for the education.

    The below is a narrative of an email to Rodney in OZ about the tranny.

    The trans (A440F) has been acting weird lately for the past 6 days and it's finally come to a head. For the past 5 days the trans felt like it "released" the engine before it would upshift from 2nd to 3rd. By "released" I mean that the engine would rev say from 3500 rpms up to 4500 rpms before the trans would step into 3rd gear.
    Well yesterday, the trans does not want to upshift to 3rd gear. I have to feather the gas to find 3rd, but that's only momentary.
    At the same time I have checked reverse and found that I have to go to full throttle for reverse to kick in, otherwise I can go to 1/4 throttle before the rigs ever starts to move.

    History of the Trans:
    About three years ago the trans was rebuilt by a local tranny shop.
    It over heated [A/T Oil Temp light] on 2 or 3 separate occasions after the rebuild and I replaced the fuild every time it over heated. Then I bought a tranny cooler from AutoZone and installed, the largest square inch I could find.
    Not that this has anything to do with the trans operation, but the speedo cable broke last week the same time the trans started acting up. I just replaced the speedo cable last night.
    Additionally, I was wheeling about a month ago and this hill was giving me hell. On four occations I got to the top of the hill and the rigs was rev'ing but not going anywhere. (wonder if I burnt something, ya' think)


    Well, Rodney came back and basically stated what I suspected, the 3rd gear clutch is burnt, 3rd clutch also controls reverse operations.

    So I've started the operation and will be replacing the clutches once I pick them up.

    By the way, I bought the A440F rebuilt book from Toyota. That's the first thing one should do.

    Future search requests:
    Tranny rebuild
    Transmission rebuild
    Rebuild transmission

    Here's a MUD salute to the operation. :flipoff2:
    IH8Mudsalute.jpg
     
    Last edited: Jan 8, 2006
    veiloctane and pengfinn like this.
  2. Cruiser Jimmy

    Cruiser Jimmy Moderator

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    Here's one with the tranny fully disassembled.

    Wish me luck.


    Edit 12-29-05:
    Disassembly is pretty easy. Take out the 11 bolts that hold the ATF oil pump to the body, take out the six bolts that hold the two brake housing in place in the body and everything else just comes right out.

    You'll have a little trouble taking the oil pump out if you don't have a special tool. This is easily overcome by placing two bolts on the oil pump (used for pulling it out with the SST) and rotating it until it breaks free.

    Once the pumps out just start taking the components out.
    DSCF0564mud.jpg
     
    Last edited: Jan 8, 2006
  3. peebles24

    peebles24

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    Jim dosen't that require special tools. I know the chevy trannies I've rebuilt do. Oh and by the way good luck, if you need some help give me a holler. I will come if the wife will let me off the leash.

    Chad
     
  4. Cruiser Jimmy

    Cruiser Jimmy Moderator

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    Yeah it does. I have tried to get them from the Sealership but they say it's only a purchase for the service guys. Most of the special tools I need are for attachments to a dial indicator, but two or three special tools are for compressing springs. If I can't get the springs off, I'll have them made by a local machine shop, that's my only option.
     
  5. landtank

    landtank SILVER Star

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    I know that Slee offers a swap for Rodneys transmissions with the modified valve body. Was that option considerably more than what you're doing here?
     
  6. Cruiser Jimmy

    Cruiser Jimmy Moderator

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    Here's the problem.

    These clutches are from the Brake Band & Multi-Disc Clutch (or Clutch C2 when looking at the manual.) These clutches should have material on it. Guess that's way I had no up shift.
    DSCF0577mud.jpg
     
    Last edited: Dec 29, 2005
  7. Cruiser Jimmy

    Cruiser Jimmy Moderator

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    Yes, it was a serious consideration. I wanted to buy an Extreme tranny/valve body from Rodney but my wallet had other plans.

    The rebuild kit from "Axiom" is sub $1K for all seals, gaskets, clutches and steel plates.
     
  8. Benji

    Benji

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    One brave man, good luck. If you need help, give me a hollar.
     
  9. Rich

    Rich

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    Malleus likes this.
  10. Cruiser Jimmy

    Cruiser Jimmy Moderator

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    Here's the first measurement:

    Using a dial indicator, measure the thrust clearance of the input shaft
    Standard thrust clearance: 0.40-0.90mm

    My result: 1.1mm
    DSCF0560mud.jpg
     
  11. Cruiser Jimmy

    Cruiser Jimmy Moderator

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    Rich,
    Thanks so much. My two local Stealerships did not give me any value added information. One would not give me the information and the other did not know what I was talking about, "SST. . . What's an SST" :princess:
    I hope he was new!!!
     
  12. Cruiser Jimmy

    Cruiser Jimmy Moderator

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    Here's a shot of a steel plate. It must be replaced.
    DSCF0569mud.jpg
     
    Last edited: Nov 30, 2005
  13. cruiserdan

    cruiserdan SupportingVendor Emeritus Moderator

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    Regretably the SST's he inquired about are discontinued.
     
  14. Cruiser Jimmy

    Cruiser Jimmy Moderator

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    CD, Even the SST kit that's on SPX?
     
  15. Cruiser Jimmy

    Cruiser Jimmy Moderator

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    Here are all the clutches

    Edit 12-29-05:

    The three sets of smaller clutches are what hold preasure to the gearing. The larger clutches are for braking when changing gearing.
    DSCF0587mud.jpg
     
    Last edited: Dec 29, 2005
  16. IdahoDoug

    IdahoDoug

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    Awesome. Simply awesome.

    DougM
     
  17. absurdum80

    absurdum80

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    Great pics, keep us posted.

    One question - doesn't the tranny weigh a ton?
    How'd you get it in your workspace to begin with?

    g.
     
  18. baxter650

    baxter650

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    3 years on a rebuild, i hope you at least gave them a call to tell them they suck at rebuilding.
     
  19. cruiserdan

    cruiserdan SupportingVendor Emeritus Moderator

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    If it's the 09350-36010-01 yes, it is discoutinued.
     
  20. Rich

    Rich

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    Bummer.

    Lubens, I'd suggest that you call the contact number at SPX. They are not a Toyota company. They are a partner of Toyota. OTC is a tool manufacturer that SPX acquire, and they make general purpose automotive tools in addition to the special tools they manufacture for a number of auto companies. It is possible that for some of the Toyota SSTs they may have an OTC version that may be sufficiently similiar to get the job done.
     
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