View Full Version : Transmission/Synchros

04-03-2003, 01:01 AM
OK, So I got my car back together after the winter sleep and upgrades. One of the few upgrades that got done was an OBX short shifter. So anyways its been a week since I brought the car out from its nap, and then last night the tranny wouldn’t let me shift into reverse, but then later last night it did and then today it wouldn’t let me and then it would, hit and miss. The other thing is that I was in 5th and went to down shift to turn off the road I was on and it wouldn’t let me put it in any gear other then 5th.

Then when I drained a little tranny oil out tonight, it was full of brass shavings and was a very dark green/brown with a gold metallic flake (my synchros).

So is my tranny blown? and what should I do?

04-06-2003, 03:10 AM
sorry to hear that about your trans. you will probably need new synchro sets. my friend had the same problem. try going back to the stock shifter. just finished taking a transmission class. when you press in the clutch and push into another gear, it actually takes about 7 seconds for the synchro to fully speed up the mainshaft. but obviously no body is going to wait 7 seconds after changing a gear to let off the clutch inbetween shifts. however short throw shifters intensify this "shock" reaction even more by reducing the spool up time. its kinda like dumping the clutch, but on your synchros instead. goodluck with the fix.

p.s. you get what you pay for. ""OBX quality.

04-06-2003, 04:18 AM
i would change the tranny fluid to amsoil or redline and hope for the best.

redline saved a tranny of mine years back.

04-06-2003, 02:00 PM
i feel for you......i have the same POS SS, normally, i never buy junk parts for the car, but i figured it was like a stb.....difficult to f up. i was wrong. i haven't gotten around to checking the trans oil.....but now i'm pretty worried about what is in there. as far as your getting into gear problem goes.....if it won't let you go into R do the following:

1) put in nuetral and release clutch
2) depress clutch and put in 1st
3) without releasing clutch, go into R

at least that has always worked for me. and until the car warms up, i always double clutch and revmatch the 1-2 and 2-3 shift. for me, it prevents the grinding that can occur when the gear oil hasn't warmed/lubed all the parts yet. i know i know......i don't want to hear anything about double clutching an upshift, but it works.

will i still experience the same problem with the B&M or any other SS?

who may be needing his 2nd trans rebuild in as many years

04-06-2003, 02:48 PM
if you hold the shifter lever in R and let off the clutch, the input shaft will spin a notch and slip right in, or at least it should. If not, well, hm. Trannies are relatively cheap. Find somebody who did an SR swap. http://forums.freshalloy.com/images/graemlins/smile.gif

04-06-2003, 03:01 PM
Broken shift fork. To it to a shop and they said my input shaft bearing went out and that took out the rest of the bearings, and then that caused the more stuff to go bad and then I broke a shift fork, so yeah the tranny was DOA when I took it to the shop.

What causes a input shaft bearing to go bad?

Anyone have a S14 KA tranny cheap?

04-06-2003, 03:10 PM
Holy crap!! That sucks man! I was about to recommend amsoil too until i read that post... good luck finding another one too

04-06-2003, 03:20 PM
dirt, and metal chips or flakes will destroy your bearings. too bad they dont put a filter for transmission fluid. i'm doin my swap in the end of May or June. my KA tranny has about 160K miles, but it works fine. no problems to this date. it will be a couple months away, if you can wait. but let me know if you are interested.

04-06-2003, 03:30 PM
What causes an input shaft bearing to go out? That was what started all my probs with my tranny, according to the tranny shop.

04-06-2003, 03:32 PM
did you have problems before you put in the short shifter?

04-06-2003, 03:36 PM
Nothing like what I was having after I put it in, put I now know that my Input shaft bearing had been bad for quite a long time.

Thanks for the offer on the tranny, but I need something sooner, thank you very much though.

04-06-2003, 03:47 PM
you mentioned something seeing brass colored flakes and shavings when draining your fluid. slamming ss into gear can easily eat away the meshing surface of the synchro ring. i've seen worse cases where the ring chipped off in chunks. most factory synchro rings are bronze. most likely, these shavings got into your bearings. if it damaged them enough, the mainshaft could wobble breaking your shift fork.

04-06-2003, 03:55 PM
True very true. And very likely, but my input shaft bearing had been going or been out for ~1 year so I dont think it was 100% the SS, but it prob didnt help. And I had the SS for a week before this happened.

That was why I was asking what causes an input shaft bearing to go bad.


04-06-2003, 04:03 PM
its good to change the fluid once a year. i known people who have never changed the fuild for the whole life of their car. if you or anyone you know that needs a tranny, let me know before the end of May. i'm going back home to Va to do my swap. i'll bring the KA tranny back up to Illinois should you need it. i'll let it go for 50 bucks.

04-06-2003, 08:32 PM
who needs a tranny???? http://forums.freshalloy.com/images/graemlins/grin.gif http://forums.freshalloy.com/images/graemlins/grin.gif http://forums.freshalloy.com/images/graemlins/grin.gif
how many do YOU see ??