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FC3S: Can an RX7 tranny be rebuilt?

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Old Sep 25, 2009 | 02:33 PM
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FC3S: Can an RX7 tranny be rebuilt?

Hey guys: I have an 89 T2 and I was just wondering if a transmission can be rebuilt so that it performs 100% again? If so, can any reputable transmission repair shop (i.e. Mr. Transmission) do this kind of rebuild? Any recommendations? Many thanks in advance.
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Old Sep 25, 2009 | 02:36 PM
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Yes.

- Ted
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Old Sep 25, 2009 | 02:48 PM
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I was actually wondering the same thing. I want to do my TII trans in my vert when i do the Turbo engine build this winter
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Old Sep 25, 2009 | 03:18 PM
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I had all the "soft" parts rebuilt in my trans when I did my swap, there was nothing wrong with it I just wanted all the wear items replaced.
I ended up with a silent transmission that is really smooth, and lighter by about $650 in the wallet.

If your trans is toast I would suggest finding a $150-$200 used one.
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Old Sep 25, 2009 | 04:02 PM
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The cost doesn't matter to me. I would just replace all wear parts as well. I just have a light grind into 2nd and into 5th sometimes. Could be the shitty Wolf fluid i had to put in it. I may also look into getting all the hard parts cryo-treated and the case and bellhousing powdercoated.
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Old Sep 25, 2009 | 06:33 PM
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I'm pretty sure that the grind is caused by worn synchros, which can be purchased through mazdatrix.
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Old Sep 25, 2009 | 06:52 PM
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the lesson I learned with my T56 is when you have one gear grinding the others are right behind it, opens a can of worms
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Old Sep 25, 2009 | 07:19 PM
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Originally Posted by Rob XX 7
I had all the "soft" parts rebuilt in my trans when I did my swap, there was nothing wrong with it I just wanted all the wear items replaced.
I ended up with a silent transmission that is really smooth, and lighter by about $650 in the wallet.

If your trans is toast I would suggest finding a $150-$200 used one.
who did your rebuild?
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Old Sep 25, 2009 | 07:24 PM
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Every single piece of any car ever made can be rebuilt or replaced. it's just a matter of time, money and skill.
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Old Sep 25, 2009 | 07:30 PM
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Nope it cannot be rebuilt, it is too old. It is IMPOSSIBLE to rebuild it, meaning you would have to defy the laws of physics in order to remove all of the worn out parts and replace them, it simply cannot be done.

/sarcasm j/k...

I personally think $650 is ridiculous for replacing all the soft parts in the tranny and not touching the gears and synchros. TII trannies are very strong, it is unlikely to find a bad one. I say buy a used unit from Japan2LA. The one I got from him feels like its brand new, you can shift like a complete noob (slam the shifter into a lower gear at high speed w/o rev matching) and it'll slide in like you matched revs.

I had a friend with a transaxle from a 3000GT that he took to a tranny shop (took it out himself) and had a couple synchros replaced (only the bad ones). Cost him about $500 altogether no hookup.
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Old Sep 25, 2009 | 07:37 PM
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Originally Posted by Rob XX 7
If your trans is toast I would suggest finding a $150-$200 used one.
same here. that's why i have 4 spares in my garage
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Old Sep 25, 2009 | 07:42 PM
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khan- that was a good price too, I dont know what labor rates are in your area but if you want to go to a shop that has been around for longer then most have been alive you got to pay the piper my brother

parts aint cheap either.
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Old Sep 25, 2009 | 08:43 PM
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Transmissions are the type of thing that you REALLY need to know what you're doing when rebuilding. I had to make some custom tools to rebuild my NA transmission. I've never cracked open a TII trans, but let me say now that you'd better be good at welding if you want to make tools to rebuild a transmission.

Have it done professionally, and use a good quality gear lube. I REALLY liked using amsoil synthetic 75w90, but each person has their own favorite.
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Old Sep 25, 2009 | 11:07 PM
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Unfortunately Mazdatrix no longer sells RX7 transmission internals.
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Old Sep 26, 2009 | 12:19 AM
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Don't know about your area. But here in So Cal, most of the Transmission shops around here only work on automatics. If a manual tranny comes in for rebuild, more often than not they pull it and send it to Anaheim Gear who specializes in manual trannys. Knowing that, I've cut out the middle man cost load and just take my tranny there directly.

My point, there is probably an Anaheim Gear like rebuilder in your area. Just ask a few local tranny shops for a referal.
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Old Sep 26, 2009 | 12:50 AM
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I've spent far more than I'd like on rebuild costs for my old NA transmission. A couple synchros and the main bearing were replaced at two different times. Each time ended up taking about 10 labor hours, so do the math on that. It hurts. Good used NA transmissions are not easy to come by, which is why I ended up going for rebuilding.

Now I'm enjoying a stout TII transmission, and even have a spare sitting around just in case. It's easy to get a good used TII trans.
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Old Sep 26, 2009 | 02:32 AM
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hmmm sorry to change the topic for a quick sec.....im sure alot of people have this problem too....what is needed to fix the shifter from being so loose?
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Old Sep 26, 2009 | 02:41 AM
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^new bushings. very easy fix.
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Old Sep 26, 2009 | 02:58 AM
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oh... my brother had this book. looked good. never really read through it. just skimmed a little.

http://www.themotorbookstore.com/howtoreandmo.html

if anyone has a better book or how to. link it up.
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Old Sep 26, 2009 | 03:05 AM
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jackstransmission.com libertytransmission.com and a number of other do rebuilds from factory-high performance applications

also there is this little site called google.com that was a huge data base of websites that can help you with whatever you need.

for anyone on here that doesnt know anything about cars EVERY TRANSMISSION CAN BE REBUILT!!!! you can buy parts and do it yourself or pay someone else to do it for you and any transmission that has ever been made for anything
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Old Sep 26, 2009 | 03:10 AM
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Originally Posted by sen2two
oh... my brother had this book. looked good. never really read through it. just skimmed a little.

http://www.themotorbookstore.com/howtoreandmo.html

if anyone has a better book or how to. link it up.
haynes.com

they have complete rebuild books for every vehicle ever made

chiltons or masters has these too

chiltons tends to have the most detailed instructions altho i have rebuilt 4 tII manual trannys and 1 na tranny using my haynes
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Old Sep 26, 2009 | 04:49 AM
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i believe the rx7 tranny falls into the Borg Warner T-5 catagory. wich comes in MANY cars. most rear drive trannys are identical. but you do need special tools to rebuild them. thats the real hard part.
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Old Sep 26, 2009 | 05:10 AM
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I think the TII is more like the t-5, but the NA trans is straight garbage.
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Old Sep 26, 2009 | 05:11 AM
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i work over night and its super dead here right now. so i did some searching and found this...

http://www.garage411.com/MTOverhaulR15DFD3S
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Old Sep 26, 2009 | 05:12 AM
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yeah, i was refering to the TII trans. he said he had an 89 TII...
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