Tranny Rebuild

[RON98]

I used the Search button first.

Didnt find anything on a complete tranny rebuild. Im not interested in getting a shop to rebuild it. I want to learn how it is done and also it costs too much for something i can do myself.

1) Has anyone done this, I would like to converse with you maybe get a few tips.

2) what are the parts and expenses i would be looking at
3) also does anyone know of a good source where i can get a rebuild kit from?

I got a lift at home and my primary NSX on the side so Im not worried about down time.

thanks

just looked over the manual and the process was ok. just tons of stuff that needs to be replaced.

 

[EIFFEL]

This is a great learning experience for a ambitious DIY project. Couple of questions you may need to ask your self. 1. Do you have all the necessary tools,equuipment to do this job? 2. Do you know what a worn out gear,syncro, etc. looks like? How about the way the gear box works? 3. Have you rebuilt any Honda/Acura transmission before? If you can truly answer "Yes" to all the above questions. You wouldn't be placing this post. Don't get me wrong, I will be happy to give you tips along the way. But I feel like this may be over your capability. Tools needed (complete tool set, torque wrench,shop press with adaptor, bearing separator, micrometer, bearing puller, clean and uncluttered work area, bright work light. ) you get the idea, Most dealer line techs can't even rebuilt tranny due to lack of pratice. Most warrenty tranny gets replaced rather than repaired. If you still want to do it. We will be behind you all the way! They are plenty of experienced techs on this board to guide you from beginning to finish. HTH Eiffel

 

[NSXTech]

1) Has anyone done this, I would like to converse with you maybe get a few tips.

I have done a few and would be happy to help. PM me and we'll talk if you'd like.

Mark

 

[Dave Hardy]

Never done an NSX tranny, but I have done a couple of Civic trannies. It's not technically challenging, but you do need to be very organized and you need to be able to do precision measuring. In the case of the Civic tranny, you can't really put it together wrong. Things only fit one way, so that helps. Dunno if the NSX shares this trait. If you've got a helm manual, a set of feeler gauges, mics, and a dial indicator set, and if you're comfortable enough with the prospect of it after looking at the exploded view in the helm, then I say go for it.

 

[RON98]

I did a quicky over the manual last night. All the gear pully's and presses and what not i can buy.

I have worn out syncro on second and the second gear might be worn out too.

I have the primary black nsx besides this red one. Once i get this done once, i'll have all the tools to do it again and i can rebuild the black one quicker and with less down time.

 

[D'Ecosse]

... ( got this way due to previous woman owner ) ....

I know a few ladies on this site who might be offended that remark ......

 

[jgtcnsx]

just mark everything and you will be fine :smile:

 

[RON98]

save the P.C., we have enough of it in everyday life.

its a fact that the tranny " ( got this way due to previous woman owner ) ".

it is not ment as an offence but if they are looking to hard to find some reason to get offended then.... i guess they'll be offended.

JGT

what do you mean by mark everything? as in baggy everything and mark?

 

[jgtcnsx]

mark everything as in be organized and know which way the gears went in, which syncro went where, where the snap rings went etc. organization is key

 

[titaniumdave]

Tranny rebuild is not hard, just takes quite a bit of time and patience. As long as you can competently measure .001", and use the right shims and do the trial assembly process to set bearing adjustments you will be fine. The manual is very good and the order and position of parts is well laid out. If you are using a regular press with standard support block, make sure to hold all the syncro assemblies in place as the parts are being pressed together. The special Honda press parts allow you to assemble these using gravity to keep everything aligned, with regular blocks, I need to flip everything up side down and need to hold all the parts together to maintain alignment. It is very easy to 'stick' a syncro, or chip a corner on a part if the assemblies are allowed to slide apart.

I have a pretty complete machine shop and find a tranny rebuild a very reasonable undertaking. I am glad to have a surface grinder to make exact shims :wink: . Saves me from having to run parts...

 

[RON98]

thanks for the info.

I just put in GM FM tranny fluid an it worked good.

I think i can hold off the rebuild for a while.

My 92 shifts buttery smooth now and the 91 was good when i test drove it. Didnt drive it that long cause i had the full exhaust system off and was blasting around the block at about 2000000 decibles. That noise with out any exhaust pipes really adds to the race car feel.

I'll get it back on soon and take it for a longer drive.