mdt9987

iTrader: (2)

Has any one rebuilt a transmission from a 86-88 Turbo II. I am going to try and do this but i need to know where to get Mazda 49 0839 425C (bearing puller set?) I will need one to do the rebuild but if i cant find one what can i use a substitute?

Japan2LA

iTrader: (256)

Why?

Buy a low mile Jspec and be done...

scathcart

I've done it. I fabbed the puller arms myself out of 3/8 sheet iron, and then attached them to a regular birdsfoot base.

I chose to rebuild over replace with a used tranny because it let me build a transmission that shifts like new, modify a few parts, and let me powdercoat and reseal the case for the same cost that a used transmission of unknown quality.

D Walker

iTrader: (1)

says the man who sells "low milage" JDM parts

I borrowed the puller I last used from a friend in the transmission business.

scathcart

That's probably easier... but not an option for everybody. I've never seen a suitable puller for sale at most common tool stores, or at any of the "loaner tool" programs.

Japan2LA

iTrader: (256)

I seriously doubt this is true.. A good low mile used Jspec trans that "shifts smoothly"..is $250.00 plus shipping

So you are saying for roughly $395.00 or less depending on shipping, you can overhaul a TII trans, make mods, and have the housing powder coated?

Sorry, this is not possible..

The cost of basic rebuild parts.... and cost of the required tools needed to split the case, you will go over $395.00.. Then if any of the hard parts are toast, you could easily spend major $$$$

How is this worth it?

D Walker

iTrader: (1)

You know I am not knocking the JDM importer thing at all- we NEED fresh parts over here, esp T2 parts. In fact, I am in need right now of a T2 complete diff (broken R&P) and if you run across a spare rear S5 t2 iron in good shape I would be interested at the right price I think a local salvage yard might have the diff, but I really only need the R&P and maybe the diff itself.

That said- most N/A trans can be rebuilt very very cheaply as most parts are available right over the counter at the dealer, and Ray at Malloy gives good pricing if you need to order in. T2 boxes are of course a little higher cost, but again, most parts you would need for the average rebuild are cheap and not an issue to get.

Also, and I hate to mention this, BUT, I use a bearing splitter and my C press a lot these days for trans work (when I do it, its actually cheaper/faster sometimes to farm it out) because most pullers suck and I hate when the arms slip. With the press and some inexpensive tooling teardown is easy-peasy and damage from tool slip or similar is unlikely. Not for everyone obviously, but pretty much any mechanic shop will have a press and someone who knows how to use it. For a few bucks they might even press off or on whatever you need done.

scathcart

Have all the tools, just needed to mod a few sockets and make some pieces to fit my puller.
Have a powdercoating gun, oven, soda blaster, acetone bath.
Mods just take time, there's no parts available to buy.
Bought new blocking rings and seals from mazda, had my bearing supplier grab me some fantastic new bearings for next to nothing. New hard parts are surprisingly affordable, on the off chance you need them.
Cost was around $300 for all the required parts, plus the cost of powder.

To me, yeah, that's worth it. Why would I take more money and gamble on a stock, used, dirty tranny when I have the tools and skillset to build a better trans?

That being said, this is not for everyone. There is a fairly extensive tool set required (hydraulic press, for example) , as well as a very good foundation of mechanical knowledge.

scathcart

To be fair, the original poster asked about rebuilding his transmission. I'm not coming into a thread and telling anyone not to buy a jspec trans, just trying to provide some insight to the original poster's question.

RotaryEvolution

iTrader: (30)

that's how i feel after reading this thread.

J2LA, a little tip. i have about 10 transmissions sitting in the shop and i couldn't tell you which were good to go and which need syncros without installing the trannies and driving the car or tearing them down and inspecting them so how can you tell someone in good faith that all your used tranmissions are 100% good to go without testing them first? you can't! just because they are low mile transmissions is no guarantee that those owners didn't abuse the **** out of it or mis-shift into 5th from 2nd and snap the 5th gear syncro(very common). granted most of the time they are ok and in good usable condition but do you go do chores around people's houses when you sell something that doesn't work as intended and those people wasted a day or 2 of their lives swapping trannies? doubt it.

anyways, enough ranting. with enough creativity you can make your own pullers from just about anything. i use 2 lengths of chain, a u-bolt clamp and a steering wheel puller for the rear main bearing and it works fine if you heat up the shaft a little. the rest is basically doable with basic tools with the exception of splitting the main shaft gears off the shaft, which can be done with a press and bearing cup (necessary to replace the 1/2 shift syncros).