rebuilding re4ro3a,anyone ever done it?

[94infinitiq45]

I'm rebuilding my transmission out of my 94 q due to totally gone high clutches.I found a kit for 280 bucks with all the new plates,o-rings,gaskets etc. Seems like a good deal to me, my dads rebuilt a few at's in his day so this shouldnt be too hard.I've already taken it apart and the internals remind me of a dirt bike clutch set up. The dealer says im crazy for doing this but it cant be too hard, anythings possible. My car wouldnt even shift out of 2nd so i thought it was something electrical at first until i got it apart. Hopefully a successful mission, getting the kit friday.50/50 chance

[maxnix]

Nissan does it every day. Replaces valves and solenoids too, planetary gears as needed.

Best deal is a factory remufactured from Joe, unless you have a racing shop familiar with the Nissan automatics.

[94infinitiq45]

it's a fairly simple tranmission,infiniti laughed at me when i said i was rebulding it.I just hope i prove them wrong lol

[94infinitiq45]

plus much cheaper for the kit as long as you have some mechanical experience it isnt tooo bad

[maxnix]

it's a fairly simple tranmission,infiniti laughed at me when i said i was rebulding it.I just hope i prove them wrong lol

Well, kind of like the defendant who represents himself......

[texasoil]

IMHO, having personally rebuilt 2 MBZ automatics and a number of Chevy,Ford, Chrysler autos and a couple of 4 speed manuals, , the devil is in the details.

Never done a Q45 unit tho-but don't expect it to be markedly different. You HAVE to do your homework before you start--study and learn where 'the tricks' are. Every transmission has one or more tricky/sensitive areas that will bite you.

The MBZ transmissions take a solid 8 hours for a GOOD experienced transmission tech to go through (not including the R&R). There are just a lot of steps and parts to remove, inspect, measure, clean, and reinstall. I would expect similar for the Q45 units.

If one had 'hard parts' damage-grinding sounds, etc, I would not attempt a rebuild of that unit--you will NEVER get it clean enough and the hard parts are super expensive. You HAVE to have a spotlessly clean working environment to reassemble the units-absolutely no dirt, lint, dust,etc.

[DrewQ45]

Do it man... can't wait to hear how it turns out. I know this is crazy to ask, but could you document with pics? You don't have to post it here. Just zip it to me.

[Jesda]

Patience and diligence. My transmission was rebuilt by a professional in 1998 and so far its been functioning perfectly.

The bill, by the way, to do the job properly, was about $4500. Would have been cheaper to just install a factory reman.

[DrewQ45]

I dropped $650 at NAD.....been running since 2005

...but then it took me two tries, another Jap take-out importer sold me a bad one just prior. I had to eat the labor.

[94infinitiq45]

ill take some pics,the only things that look bad are the high clutches and forward cluthches but im going to replace all of the clutch packs and reverse clutch packs since they come in the kit. should work who knows

[ScottJackson]

yes, please take some pics. Is there a manual that covers rebuilding these transmissions?

[94infinitiq45]

The fsm covers rebuilding it in pretty good detail. Not that great of pics but shows general disassembly,inspection,reassembly. but i should have some pics of most of the parts posted by tonight.

[Q45tech]

http://importdrivetrain.com/au...20Q45

Need rebuild kit + bushing kit + clutch steel kit + 2-4 band kit + TC + instructions ~~~$550 + $250 for TC and 12-13 hours of labor.

Often a good idea to replace control solenoids and worn valve bodies.

Many aftermarket rebuilders short cut bushings, steels, 2-4 band to save $250 and 3-4 hours labor............12month/12k warranty

[94infinitiq45]

i got a rebuild kit with friction and steel plates. I have no idea what you guys are talking about with a 2-4 band it shows nothing in the manual for the transmission.Maybe you're talking about the brake band which i ordered one of those too. I know for a fact the problem was the clutch disks because they were as flat as the steel plates.i just dont get what that 2-4 badn could be,if anyone knows could you let me know. thanks,jerrod if anyone wants any pics just tell me your email and ill send them to ya
Modified by 94infinitiq45 at 7:11 AM 4/11/2007

[elwesso]

Once you get done with it, you can send the pics to me and I'll load them onto the website for everyone to view easily.

If you could write an article thatd be great!!!

[94infinitiq45]

Q45 tech could you tell me what the 2-4 band is because i looked at everything and all of the exploded views of all components and the only thing that is a band is the brake band. thank you

[Q45tech]

http://www.shinseiauto.com/jap...4.pdf

[94infinitiq45]

well i rebuilt the transmission and it was a success.It was not very hard at all the hardest part was getting it out .Before rebuild did not shift out of 2nd gear but now shifts through all gears. saved 1700 dollars instead of buying a rebuilt.I only have some pics because my mom took my camera on vacation with her but ive got some of the internals.I used the fsm for the rebuild and it had just the right amount of information and pictures. If anyone wants pics then ill send them to them.

[maxnix]

Great! Now time your shifts at WOT and report back.

[94infinitiq45]

I'd love to tell ya but my fuel pump died 2 days after i got it finished,i have bad luck or something.But the shifts seemed just as fast as when i bought the car so i mustve done something right.I love Q's but its putting me through hell

[maxnix]

Fuel pump is common maintenance item. Check your FPCU.

Feelings are difficult to quantify. Since it was failing before, how could you know what as new is lilke? Timings will tell.

[Jesda]

Thats great news! Send pics to [email protected] or upload them to http://www.q45.org/gallery/