Thread: Tranny blew up.....

you ever find what your looking for?? possible B15 for sale here!

Check the rear mount first. If the trans is sagging to the back, it doesn't allow the shifter rod to move forward into 1st, 3rd or 5th.

this happened to me also and it was my mount. I was on the highway on the way to work and the car would not get out of 5th gear. i had to force it out. When I parked no shift to 1st ,3rd or 5th, thought my tranny was done. To get it in gear we rocked the car back and forth and I was able to drive home. Checked my mounts, changed them and my car has been shifting like butter ever since. and this was about 25k ago.

Thanks for all the replies gentelmen. I am so deeply dissappointed. Not that I have to repair the vehicle, but that I was finally driving it again. A huge grin on my face after a 2-year downtime. The vehicle will be fixed, and as quickly as I can manage. I am a bit tapped on cash after the "Restoration...." and the subsequent trip to the Convention.

I'm gonna make these short, unusual for me, as I am going to take pics of the ACT clutch (pronounced dead, after 15K miles). There was also "plenty of metal" in the Redline Heavy Shockproof.

Mike has not cracked the tranny apart yet, but I do not expect good news.


For once I am going to adamantly disagree with you concerning the mechanicals on the B13 and B14 transmission.

They DO NOT have an "actual real life fix." Period.

They have a motherf*cking, cheap-ass, bullsh*t, reverse-engineered, f*ck the customers, Nissan OEM BAND-AID.

My tranny was fixed by Nissan in 1995 or '96. The "fix" was implemented by Nissan. The tranny failed again 80K miles later.

The tranny was rebuilt, once again including the "Nissan OEM fix" about six years ago.

You cannot fix a cheap-ass, flexing transmission case itsef with some stupid, inconsequential, doohickey widget "fix" inside the limp-noodle trannycase.

The B13/14 transmissions were NOT fixed correctly until a complete redesign of the tranny was implemented with the B15 chassis.

EDIT: See my next post below.


IIRC, that is correct and confirms my memory.

However, I will be looking at all the tranny threads in the Technical Libraries.


Bingo. Cheap-ass, weak, flexible tranny case.


Thank you Joe.


Nope.

I am the Original Owner. Been driving my little beastie for sixteen (16) years. I expect to drive it another sixteen (16) years. I have "fixed" that stupid motherf*cking transmission for the last time. And, despite what you and Ben seem to think, the B14 tranny has a gawd-damned, peice of sh*t, band-aid on it. It can still break, lose fifth, and all the other crap our tranny's are known to do.


Thank you sir. I know it is overkill, I'm counting on it. I never, ever, want to have to fix my damn transmission again. Ever.


No bad habits here at all. None. Remember, I have been dealing with transmission issues since 1996.


I've actually discussed, argued, debated, and reSearched this one to death on the other forum.

The B14 trannies can still develop pop-out. The biggest issue is the transmission case itself. It flexes. And there is no "internal Nissan widget" that is going to change that fact.


Nope. I want something geared about like the B13 tranny. I have no desire to buy an equally weak transmission, for the shorter gears.



You reverse engineer the B15/P11 LSD tranny from hydraulic actuation to cable actuation. There is a huge Technical Library thread on the subject on the other forum.


Bingo.


I'll mention this to Mike. However, it will not go into those gears. It grinds so loudly, I did not force the issue.

However, the initial prognosis, with the tranny unopened, is not good.


That sounds about right. Except I have reverse.


Thanks Hank. I will be reSearching this further, but IIRC you are correct.

And I will be buying the tranny from a respected, long-term, no bullsh*t, outstanding feedback, Forum Vendor. I don't much like the idea of buying from an "unknown", especially on a high-dollar item that is a bitch to uninstall, reinstall, uninstall, reinstall....

I want this to be my last transmission install for the next twenty (20) years. And yes, I will still have my Classic in 2029. No question in my mind.


B15 appears to be the concensus from you folks that are mechanically minded.


Grinds, will not go forward at all. Feels like it is hitting a solid metal "wall." I don't *think* I could have even brute-forced it into first gear. Seemed like a definite no-go.


Damn, all you mechanically smart folks recommending the B15.


B15 LSD?


Prothanes X4, all the way around during the last transmission fix. Unless the mount itself broke away from the vehicle, the mounts are not an issue.


Thank you, however I would bet large money on the mounts be A-OK.

________________________________________

Gentlemen,

I sincerely appreciate all of your input. Without the "Knowledge Collective" on this forum, I'd be at a loss and a major disadvantage on keeping my Classic running down the road. You guys kick ass.

I am heading to Mikes right now, camera in hand. See what is up with the ACT clutch (prematurely dead-as-a-rock according to Mike) and the tranny.

This aggravating as hell set-back will NOT stop me or my plans for the vehicle. My Classic will come back stronger and better.

Onward.

Shawn B

Damn shawn, you have bad luck.

I have 2 b13's with original trannys. One had the **** auto crossed out of it before I got it and the other has 230k miles and it's turbo, but I also have a spare b14 tranny ready to go in if either one of them breaks.

reminds me of the time when my gf was driving by down to socal from norcal we were on the 5 freeway near LAX, she had to downshift from fifth to 3rd she was doing at about 50 or 55 and needed to pass a car, the gear went in smoothly as soon as she stepped on the gas the car just reved.. then she had to move to 4th.. she tried again from 4th to 3rd by this time the car was going about 45 and nothing.. (we lost 3rd) so she gained speed in forth, then she was trying to get to 5th and bam.. lost the 5th also.. fak.. this was on a 91 original tranny about 130k on chassis and tranny.....

i though it was funny having to lose both those gears at the same time. Once thegear stack was out, the gears had been chewed up pretty bad...

shawn when you open the case you will see gear stack damage. Your problem is just like when I killed 1,3rd gear. Thrid let loose while in gear and 1st went out from debis while I was limping the car home(less than 1 mile). I would love to have a b15 tranny with a nismo diff, but its not cheap. I also think I would rather have a spec v tranny in my car but thats not cheap or quick fix.

LSD yes ,,,,,,got it from another forum member about 8 months ago

WTF?

I demand an explaination!!!

I stand by my assertation that Nissan did a piss poor job of engineering a half-assed "tranny fix" between the B13 and B14 trannies.

Please read the following for clarification.

B15/P11 tranny- why it's better than B13/B14 - SR20 Forum

Tranny power? - SR20 Forum

Fosters and I discussing exactly what was changed from the B13 to B14 transmissions.

5th Gear Pop Out? Aftermarket? - SR20 Forum


Nissan redesigned "the fifth input gear, a part of the fifth gear synchronizer."

In plain English, they redesigned one input gear, and one part of a synchronizer. Lovely fix. Like putting a band-aid and some Bacitracin on a damn compound fracture.


Yes sir, I do have bad luck with that damn transmission.

Bad luck aggravated by an underengineered piece of crap from Nissan.


There was not much metal from inside the tranny, and not at all what I expected . See the photos below.


We shall see sir. Mike is going to crack the case tomorrow.


Most interesting sir. I shall keep that in mind.

Mike (my mechanic) will be on the Dash tomorrow with his questions pertaining to the following set of photos.


1) Clutch face.



2) The first crack.



3) The second crack.



4) The flywheel and "hot spots."



5) ACT street disc...something or other.



6) See the funny, shiney ring around the middle from rubbing metal?



7) A "significant amount of metal" indeed. Metal wire. While certainly significant, that is the only metal that came out with the fluid.



8) Mike has questions about this part.....



9) Mike has questions about this part as well.



Mike will be checking in sometime before I wake up. During morning-time for you day dwellers. He has several questions concerning the photos as posted above.

I am not going to elaborate when he can address you guys directly with his questions. My "translation" would merely muddy the waters.

We have the following possibilities:

A) Fixing this existing tranny, cheaply, effectively, reliably and quickly. While in Mikes shop.

B) If the tranny is shot, beyond the criteria outlined, it will be replaced with a B15 LSD tranny.

I need a new clutch in any event. That one is dead, a couple more cracks and it goes boom.

Thank you all in advance for discussing this with Mike. And I sinceerely appreciate all the input and help.

Shawn B


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P.S. I was searching for those transmission threads as posted above, and during my search I had to scan a bunch of threads in which I had posted.

Holy crap!

I was much, much, more aggressive, obnoxious, rude, crude, tactless, unsociable, argumentative, uncouth and just downright ornery when I first joined the SR20 community. Over the last five (5) years, I have become semi-civilized, nearly friendly, in comparison.