yet another one broke.

[3day240sx]

this is starting to get old and i was wondering if anybody else has had this problem. i keep breaking trannies. my first car didn't have a problem with... mainly b/c i wrecked it in the first week i had it. the sencond one i got the tranny was messed up. by messed up i mean that the 5th/reverse gear shift fork broke and the piece that came off feel between the case and the the rest of the broken shift fork. so i brought the car home pull the tranny and set it to the side until i got time to open it up and find out exactly what was wrong b/c all i knew when i got it was forward gears would work and the other gears wouldn't.

the next 240 i got which is the one i drive now was stuck in gear and the shifter would shift but the tranny wouldn't change gears. pulled it out and apart to find that nothing was noticably wrong. i reasembled it with out any gaskets to see if the problem was fixed and it shifted fine. i then pulled everything back apart and put silicone on it to seal everything up. put it back in the car and i have now put about 2000 miles on it.

this is the same car as the last one. i was going out ot hang out tonight and my clutch master goes dry. i notice the pedal easing it's way to the floor so i pull over and check it and empty. suck some brake fluid out of the brake master cylinder so i can drive it to a gas station. i get some more fluid and put in it so i can pump it up to change gears and get back home. between the time the pedal started getting soft i started shifting with out the clutch to cheap from making the problem worse. i went to shift into fifth one time and right when it went into gear it sounded like it ground but also like the gear was trying to chew on something. when i went to pull it back out of gear at the next light(w/o the clutch) i sounded like the gear tried to eat something... big. i kick the clutch to the floor and go to pull it out of gear properly and it is locked into gear. i gave it a good pull and it came out. i got up to the light and went to checking all the gears. once again all my forward gears work but it won't go into reverse.

has this happened to anybody else?
is there many people out there that have problems with ka trannies?
if so what is an upgrade for the tranny?

[3day240sx]

also this has all happened in the past 6 months.

[redsuns3838]

u just having bad luck. ur driving a old car and buying shit from a lotta ppl who probly suck at driving stick.

its only like 50-100 a tranny, get another and prey its good?

neither KA trannies, nor Sr are prone to breaking, especially at stock hp levels. but they do break sometimes. shit happens thats all.

[kandyflip445]

Check the master and slave cylinder for the clutch. Replace as needed. It's most likely the slave. Make sure and use a factory one because the ones from parts stores suck and go out quickly. I know from experience as do many others. You might as well get a SS clutch line for ~20 bucks and delete the dampener. Search about them and you'll find a lot of good info.

[3day240sx]

i have a couple more trannies laying around but the way my luck is going with ka trannies i am wondering if i will break something again shortly. it just seems odd that 2 trannies have both broke the shift fork and the piece that broke went in to the same spot.

i figured that is where i will be with the clutch hydrolic system. i didn't know that the SS lines will do away with the proportioning valve though. i will search and see what i come up with.

on another note, if i completly rebuild one of my trannies is there somewhere other then the dealer to get the bearings, syncros, and any other part they may be worn or broke? if so where? if not does anybody know the part numbers for the pieces i will need?

[kandyflip445]

I dunno where you got proportioning valve from but :wtf:?

Shift forks don't just break out of nowhere. I would wager to say that YOU broke the shift forks by trying to manhandle the car into gear because the clutch wouldn't disengage due to the bad hydraulic system.

[3day240sx]

:Owned: dampener. haven't slept in a... while. never manhandled into gear only back out of gear once it did that. mainly just weird b/c same fork and same problem once it broke.

[Stillslow]

I broke 2 tailshafts this weekned at the drag strip anybody ever have this problem??it sucks pretty bad because I broke my spare tranny.

[Eric240sx1990]

i dono, but ive heard that a bad throwout bearing can cause the tranny to not want to shift. mebbe that helps....

[bruce leroy]

I broke that same shift fork on two sr trannies. I figured it was cause i have a tendency to go from 2nd to 5th instead of 2nd to 3rd during a drift.

[3day240sx]

when it broke did it make it where you couldn't shift into reverse?

[kandyflip445]

It makes sense that if the shift fork broke you wouldn't be able to use 5th or Reverse. Each fork engages 2 gears. 1st-2nd, 3rd-4th, 5th-Rev.

[3day240sx]

it doesn't completely break. one section about 1" long breaks and falls between the plate that all the gears mount to and makes it were you can't shift into reverse, or that is what has happened to me. 5th gear will still work and seems like nothing is wrong with it.

[kandyflip445]

If you could take some pictures it would make it so much more clear.

[3day240sx]

all i have is a pic of the piece that i pulled out of the last one. i never took the shift fork off and you wouldn't be able to tell with it on. do you want to see the piece that came out? whenever i fix the one in the car i will take several pics of it.

[kandyflip445]

Yeah sure. A pic of that might help out.

[3day240sx]

http://www.memphisracingscene.com/pp/data/727/medium/pieces.JPG

[3day240sx]

it is fuzzy but that is what i pulled out of the tranny. well the bolt didn't come out of it but it is a 12mm bolt to use as a referance.

[kandyflip445]

I can't tell what it is from that pic. When you get a chance to pull that tranny apart definately get some better pics of what broke. I haven't heard of shift forks breaking on many trannys at all. On the 240 I believe people have problems with the 3rd speed gear getting ruined at higher horsepower but not shift forks.