help with new 25 transmission!!!!!!!!!!!!

[SullivanRacing06]

so to speed everyone up on my situation, i ordered a NEW rb25det transmission from nissan japan, got to my door step, installed the transmission, filled it with 75-80 non synthetic gear oil, drove the car for tops of 10 miles and BAMMM! shifter stuck into first, towed the car back to shop, pulled the shifter out n noticed the lower shifter bushing popped off the bottom of the shifter, replace the shifter bushing, transmission goes into first no problem, shift into second and when you try to let the clutch out the engine tries to die out and then whe you shift from 2nd into neutral position its in reverse! im so pissed off that i just dropped x number of $ into to a brand new transmission and it fuc#$ up on me like this, contacted the importer tonight n they said to send it back n theyll look at it and see what nissan can do, thank god i payed thru paypal but why the hell is a brand new transmission gettin stuck into gear like that? sounds like a shifter arm broke? popped outta place?

whats nissan call for for gear lube weight? 75-80 80-90?

holds 4 qts rite?

[240z4u]

Do some reading, its pretty common for the shifter forks to get knocked out of whack from being jarred during shipment.

Evan

[Kalypso]

^

it sounds fine, relax and inspect it carefully.

[74260zt]

Yea... you got a bad transmission. I just happen to have a perfect cond. rb25det trans I'll swap you out ....

[SullivanRacing06]

i looked at a open 25 transmission that ive got laying around and the rod that the lower shifter attaches to that selects which fork to move next, could of that been possible of been spun or thrown out of place so itll only shift into 1st, then when pulled back to second it tries to stall the motor n when i put it into neutral its in reverse, this just dosent make ne sence!

the bottom shifter bushing did pop off the end of the shifter thats when all the porblems started, it happened between a 1-2 shift, could it be possiblke that the rod that selects which fork to move got jossled from the lower shifter bushing falling out? or should i return the entire damm thing?

[toadx8u]

i had this same problem happen the the first transmission i bought when they shipped the trans they didnt put it in gear so at some point in shipping it got jarred just like evan said....you need to pull the trans out seperate the bell and the back half and reset all the forks and gears so they are in the neutal postion... you should be able to turn the input shaft by hand and the output shouldnt turn....yours seems to be stuck in reverse...mine was stuck in 3rd when it happend....

[SullivanRacing06]

so split the casing n reset the rod that the lower shifter bushing went into were it moves the three forks? u think its outta wack? so when i reset these forks they should lay even with the cut out they push n pull that guide the forks? if thaat makes ne sence?

[SullivanRacing06]

also, the transmission will shift thru a 1-2-3-4 pattern, will not go into the 5 or rev shift pattern,

[240z4u]

Jesus christ, return that trans and take some grammar and spelling classes.

Just split the trans, its not really that big of a deal man. Sounds like the forks are out of wack. I did that to my trans when I put it back together at one point. What a pain in the *** to get straightened out.

Evn

[SullivanRacing06]

well the gramm n spellin arent gonna change but ill throw her back on to the lift and pull n split the transmission instead

[toadx8u]

yeah just split the trans theres 3 forks in there that control the shifting...

the 1-2 forkthe 3-4 fork the 5-R fork

sounds like the fork for 5-R came off durring shipping and while you were driving it it jumped into the reverse gear

[SullivanRacing06]

ok i really appreciate any info given here

[240z4u]

If your not sure how to split the trans, read the writeup that boozted3 did on the rb25det/z32 transmission conversion. It covers all the important stuff.

Evan

[SullivanRacing06]

yea ive read that write up a coupl eof times, very nice work mite i add , i have a rb25 transmission apart on the bench now (from the old motor set up) that has some messed up gears from dumping the clutch one to many times, im using that as a ref for now, after my final that starts at one ill go ahead n put her on the lift n pul the trans outta her(again) n out it on the bench n split it

any more advise, comments, words of wisdom, words of doubt or ne thing else of that nature, keep the replys commin! thanks everyone whos helpin me on this frustrating journey!!!!!!!!!

[SullivanRacing06]

yeah just split the trans theres 3 forks in there that control the shifting...

the 1-2 forkthe 3-4 fork the 5-R fork

sounds like the fork for 5-R came off durring shipping and while you were driving it it jumped into the reverse gear

the transmission still shifted into 5th sort of hard but it would go in, and if i parked into a parking spot n had to rev out of it it was hard to get into the rev, sounds like the 5-r fork to yall? (sorry about my vocab, grew up in hicks-ville fla! lol)

[Carl H]

a simple way to get the rods back into place is to remove the throwout bearing slider cover and gently line the 3 rods up.

[l0nestar]

a simple way to get the rods back into place is to remove the throwout bearing slider cover and gently line the 3 rods up.

More pearls of wisdom from Carl "Been There - Done That!" H.

[SullivanRacing06]

a simple way to get the rods back into place is to remove the throwout bearing slider cover and gently line the 3 rods up.

can you be a bit more specific, how do see into the casing, split it? or thru the front housing behind the throwout bearing?

[Carl H]

the slider that the throwout bearing slides on...has like 7 bolts, pull that off and you should be able to get to the shifter rods.sometimes they move out of place especialy if the trans has been sat on its bellhousing at anytime in its life.

[SullivanRacing06]

do u have ne pics?

[SullivanRacing06]

any pictures of the removel or which rod i neew to mess with?

[240z4u]

Any pictures of the removal or which rod I need to mess with?

I went ahead and corrected that for you, in case anyone that speaks English wants to help you.

Pull the cover off the front, there is only one rod in there.

Evan

[SullivanRacing06]

ok in correct english, the one rod under the throw out bearing cover is supposed to line up with what? i have the piece the shifter sits in off, and the piece the lower shifter bushing moves looks to be in the correct place, how am i supposed to tell if the rods are out of place? any help is still greatly appt!

[240z4u]

Thanks man, seriously its like 1000x easier to read.

Are you able to move the rod at all? Honestly, it seems to me like the forks are out of whack enough where you may have to disassemble it. The good news is that its fairly easy.

Can you push that rod in or pull it out at all? The one on the top with the big thick washer is the one you wanna mess with.

Evan

[SullivanRacing06]

actually i reassembled my old 25 transmission that i was replacing with the new one, but for now i can drive slow n shift even slower untill i pull the new one apart, i believe the transmission i put together for now had the same problem with the forks and it works fine, im just worried if thats not the problem then i blow my warranty with the new one, the little angel on my shoulder is telling me , but.............. the other sides tellin me , at least im no longer a member of the non running rb club ne more!!!!!!