Quick Answer needed. Transmisison question. not hard.

[E7-S14]

my question is when a ka or sr transmission is out of the car and not attached to the motor are you able to shift it in reverse?

im asking because im planing on picking up a transmission from a guy and he said don't be alarmed when i cant shift it in reverse when its not hooked up to the motor.

he said the clutch has to be in for it to do it.

i dont remember this from when my motor was out of my car so i thought id ask you guys.

just need a quick answer.thanks

[ashibah83]

i dunno sounds kinda fishy, i would check my spare trans....but i dont have a shifter on it so i dont think its gonna happen, sorry

[E7-S14]

i dunno sounds kinda fishy, i would check my spare trans....but i dont have a shifter on it so i dont think its gonna happen, sorry

well that didnt help me out much hai know it sounds kinda fishy thats why im asking.

[ashibah83]

yeah sorry bout my uslessness, at me

[carkook]

Well since Reverse actually uses spur cut gears (strait cut) it makes since. I bet if you twisted the input or output shaft a little bit then try, then twist, then try, you could get it to go in(Turning the gears so the teeth arnt going strait into each other, but meshing in with each other). Its like in your car when your at a stop and it doesnt want to go in reverse, you go forward like an inch more then it slides right in.

[E7-S14]

Well since Reverse actually uses spur cut gears (strait cut) it makes since. I bet if you twisted the input or output shaft a little bit then try, then twist, then try, you could get it to go in(Turning the gears so the teeth arnt going strait into each other, but meshing in with each other). Its like in your car when your at a stop and it doesnt want to go in reverse, you go forward like an inch more then it slides right in.

so what your saying is yes..its not supposed to go in reverse wen the trannys not hooked up to the motor.

[carkook]

No not at all, what Im saying is reverse uses strait cut gears, when there not lined up right it wont go into gear. Take your hands and mesh your fingers like a gear, now pull them away and put them together so your tips of your fingers are hitting each other. Thats whats happening so Im saying spin one of the shafts so you get the teeth to line up so they can mesh and not just hit slam into each other.

[E7-S14]

Thats whats happening so Im saying spin one of the shafts so you get the teeth to line up so they can mesh and not just hit slam into each other.

ok so do this to test the transmission to make sure reverse inst F*****

ok got thatso your saying that the transmission IS NOT supposed to go into revers when not hooked to the motor correct?

cuz i wont buy the transmission if its supposed to go in reverse not hooked up to the motor.

i gotta travel 2 hours to pick it up. i just wanna try to confirm here so i dont waste my time you know.

[carkook]

so your saying that the transmission IS NOT supposed to go into revers when not hooked to the motor correct?

NO that is not what im saying, it doesnt matter. Reverse is no different then every other gear except that the teeth on the gears are strait cut, not angled. And that is uses one more gear in between the drive and driven gears so you get the Output to rotate the other way.

It should go in when it is not hooked up this makes absolutly no difference. The reasin that it isnt is because they are lined up to where the very end of the teeth(like your finger tips as I explained before) are hitting each other, instead of meshing.

If you dont get that I dont no any other way to explain it.

[Dittoz7]

LOL

I Get It.

[carkook]

I think I should have just said it doesnt matter if its hooked up or not. I was just trying to explain why.

[Razi]

I get it.I have to move my car a little to get it to mesh into reverse, and your reasoning with the straight cut gear makes good sense.

[E7-S14]

ok i see what you were saying.

so do you think its worth it to drive 2 hours to find out if your method will work or not?seeing if its a good transmission or not?

[carkook]

I took manual trannies at Wyotech, and thats the way it is taught. Every transmission I got to take apart ranging from old school chevy 4 spds to brand new 6 speeds and transaxles all have the Spur cut reverse gears.

[Clawhammer]

Hmmm, I may be able to help you...

To be continued...

[Clawhammer]

Spare transmission on my back porch goes into reverse.

God dammit now my hands are all greasy. You sir, owe me big time.

I thought I was done being greasy after pulling my motor today. I don't think the all cleansing beer pong water cup is going to take care of this either. /sigh

[the converted]

If you are turning the input shaft while you are trying to put it into reverse it will go. I'm cant say that I have seen any trannys with a blown reverse though.

[E7-S14]

Spare transmission on my back porch goes into reverse.

God dammit now my hands are all greasy. You sir, owe me big time.

I thought I was done being greasy after pulling my motor today. I don't think the all cleansing beer pong water cup is going to take care of this either. /sigh

here you go...

sorry i took a bite

I took manual trannies at Wyotech, and thats the way it is taught. Every transmission I got to take apart ranging from old school chevy 4 spds to brand new 6 speeds and transaxles all have the Spur cut reverse gears.

so in your opinion you think its worth driving 2 hours to find out?the guy swore by all sr and ka trannys not being able to shift in revers when off the block and w/o clutch in

[ZOMG.SR20]

hes trying to get you too waste your time

[heartofaskyline]

mine goes into reverse fine....

[Clawhammer]

Wow, you must have completely missed the content of my post. So I took the liberty of making you some videos. This is a KA transmission. If you wait till tomorrow I'll test it out on my SR transmission. It's at my buddy's house where I pulled my motor.

http://www.btyproductions.com/...1.3g2

http://www.btyproductions.com/...2.3g2

Opens in quicktime.

[placham]

KA-SR-RB20 tranies are identical except bell housing, so what ever works on Sr works on KA or RB20.

I dont think it should make any difference if its out or in.

Should be same as if you release clutch or motor is not running, or no clutch. It shouldn't make a difference, it ether goes in or not. Turning input shaft should help to mesh gears and put it into rev.

[E7-S14]

ok.well thanks guys

helped me dodge a bullet their.thanks claw for the video ha.makes things easy for us idiotsjk. im not an idiot.

[carkook]

If you are turning the input shaft while you are trying to put it into reverse it will go. I'm cant say that I have seen any trannys with a blown reverse though.

Exactly what I said, I bet the transmission is fine.

[Clawhammer]

I know.

I do what I can.

Seriously, it goes in reverse. These guys are making it waaaay to complicated.

I will be swapping the bellhousing on this transmission for my SR. My SR one is just stupid. My buddy where my car is, just did the swap as well cause his SR transmission wouldn't go in reverse...so I could do it on that and get the ultimate test!

[White Comet]

you already have your answer, but yeah mine went into reverse no prob

[B-Boy DuB-L]

yea when my trnny was out in went into reverse as smooth as butter

[hai1206vn]

im asking because im planing on picking up a transmission from a guy and he said don't be alarmed when i cant shift it in reverse when its not hooked up to the motor.

he said the clutch has to be in for it to do it.

What he said can't be right. When you push the clutch in to disengage the transmission from engine, that's just equivalent to having the transmission sitting outside the car. Which means if you can pop in R using the clutch, you can do it with the transmission off the car too.