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Old 07-01-2005, 10:49 PM   #76
djplayboy
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im not having too too much of a prob with 1st but i recently started having a big prob with 4th grinding while normal driving and sometimes while spirited driving
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Old 08-04-2005, 07:06 PM   #77
ntd
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Could those of you that have been lucky enough to have a dealer that will fix the problem PLEASE post those dealers. The rest of us would like to give them our business.

I have found the dealer has control over the info they give Subaru to get the repair authorized. Yes the transmision is an old design and Subaru says that racing causes the problem so they won't fix it. Then why do they give away a year membership to the SCCA with the car?
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Old 08-05-2005, 07:52 AM   #78
scott_gunn
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Racing should not cause 1st and 4th gear synchros to fail. Think about it. If you're drag racing, you start out in first gear so no hard shifting there. Plus, don't most people finish the 1/4 mile in 3rd? (I don't know I've never done it). If you're autocrossing, then maybe you downshift once or twice to first. But I never hit 4th in the few autocrosses I've done...

Logic says 2nd then 3rd would be the most abused synchos from racing.
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Old 08-30-2009, 11:09 PM   #79
wtfh4xx
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I also cant get the car into first when movign at all.
Even when stopped dead it grinds sometimes although Im literally stuffing the clutch into my engine bay.
Definitely not the way a vehicle should work.
Also grinds into 4'th downshifting from 5'th.
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Old 08-31-2009, 10:30 AM   #80
yosemitemtb
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Wow, this thread is back from the grave! Since it came up, I should update my post from 7/1/05. I switchd back to Chevron conventional gear lube from Redline synthetic and the grinding went away. 120k miles now and no problems with the transmission.
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Old 09-08-2009, 10:58 PM   #81
Civ2Sub311
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When people say they tried or changed oils for these griding issues, they mean transmission fluid/tranny oil right? (Not motor oil?)
Sorry, noob here.
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Old 09-09-2009, 08:48 AM   #82
TFBHTMFSNE
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Quote:
Originally Posted by ntd View Post
Yes the transmision is an old design and Subaru says that racing causes the problem so they won't fix it. Then why do they give away a year membership to the SCCA with the car?
SCCA is always looking for good corner workers, scorers, concession stand workers, etc. There are a lot of SCCA members who never turn a wheel on a track.
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Old 09-09-2009, 08:56 AM   #83
TFBHTMFSNE
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Quote:
Originally Posted by 2fst4u2c View Post


The chipped gear is a cheap way for Subaru not covering it under warranty. . . because of their bad synchro and people trying to cope with this problem they can easily chip a gear. (grinding leads to bad things). I will scan in my repair sheet when I get the car back.

It's obvious that you have no idea how a synchromesh trans works. A bad synchro will NOT cause a chipped gear tooth, since the gears are constant mesh.
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Old 02-02-2011, 02:12 PM   #84
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what would cause this not to bealble to go into frist but have all the outher gears anyone know
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Old 02-03-2011, 09:17 AM   #85
Subi Grl
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Default 2nd gear issue

I've read and read. I know about the 1st gear issues & supposed safety feature of not being able to downshift into 1st. However, I'm noticing more "grinding" and hesitancy when shifting from 1st to 2nd as well as 3rd back down to 2nd around 10-20mph (and from stop into reverse). Fluid change helped some, but still peeves me. This also hasn't just happened with colder weather. Would this too be a synchro issue???

Thanks y'all!
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Old 02-03-2011, 02:02 PM   #86
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Quote:
Originally Posted by foxswrx View Post
what would cause this not to bealble to go into frist but have all the outher gears anyone know
bent/broken/otherwise damaged shift fork.

usually from rushing/forcing the shifter.
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Old 02-06-2011, 10:53 AM   #87
LS6 Tommy
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Just to clarify something-

No car has a 1st gear syncrho. There's a sycrho between 1st & 2nd, but none for Neutral to 1st. If you get grinding from a full stop when you push the clutch in & try to select 1st, it's because the clutch is shot or almost shot. If you're rolling & trying to downshift into 1st from 2nd & it grinds, you probably have one of two issues:

1. You don't know how to properly down shift.
2. The 1-2 synchro is worn out because of issue #1.

If you're trying to downshift from 2nd to 1st & the trans just doesn't want to shift, it's because you're going too fast & Subaru designed it that way to pretect the engine from overspeeding as previously mentioned.

I'm not trying to insult anybody, just clear up some confusion.

Tommy
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Old 02-07-2011, 06:34 AM   #88
ride5000
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tommy, syncros don't "know" which gear you're coming from. they don't sit "between" gears the way you think they do. they work the same if you're shifting from 5th to 1st or 2nd to 1st.

on the way to ANY gear, you must necessarily pass through neutral--this is not a SMG box! there is no way to enter a gear without doing it from a neutral position.

the only gear in the 5mt that has absolutely no synchro is reverse.

keep in mind the only job of the syncro is to get the mainshaft rpms up to speed to match the driven shaft (which is spinning due to a solid connection with the wheels).

it is a common trick (or at least it was 5-6 years ago) to "help" the first gear syncro do its job by shifting briefly into 2nd gear if you were coming from a much higher gear. 2nd has arguably the strongest/most robust syncro in the box (triple cone). this gets the mainshaft speed closer to what it should be rather than forcing 1st to do all the work... the mainshaft rpm was brought up in steps rather than all at once.

make no mistake--the BETTER way to accomplish this is with double clutching through neutral. most people do not possess good double clutch coordination so it is easier to just say "shift to second then first." the advantage double clutching has is twofold: 1) it allows you to PRECISELY match the target mainshaft speed during your blip, resulting in ZERO 1st gear syncro wear, and 2) it completely avoids 2nd gear use and subsequent syncro wear.

a good double-clutcher needs no syncros at all.
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Old 02-07-2011, 08:06 AM   #89
TFBHTMFSNE
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Quote:
Originally Posted by LS6 Tommy View Post
Just to clarify something-

No car has a 1st gear syncrho.
Thanks for the clarification. Now, let's all return back to the future. Non-synchronized 1st gears went out decades ago.
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Old 02-07-2011, 02:06 PM   #90
KoalaSlim
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Each WRX I have driven has been stubborn to go into first gear on a roll.

Double clutch first and get the revs right and you will have no problem getting into first. It's just lurchy if you get it wrong.
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Old 02-07-2011, 02:46 PM   #91
LS6 Tommy
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Guys, thanks for correcting my outdated knowledge. My manual tranny service days mostly dealt with 4 speeds, 3 speeds & older sports car 5 speeds. I apologize if I made things MORE confusing instead of less.

A good double clutcher can also shift without using a clutch at all, also with no synchro wear. Heck, anyone who drives a really stick well will have little to no synchro or clutch wear even without double clutching, although some may argue that if you don't double clutch, you're not doing it well to begin with.

Last edited by LS6 Tommy; 02-08-2011 at 11:27 AM.
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Old 11-23-2011, 01:09 PM   #92
AFAP_Nor_CA
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Default is there away to JUST MAKE IT WORK!!??

I have read every thing you all have said, I looked up this because i have a 2.5 rs that i have build into a rally car, (just for the weekends) I'm going to do a wrx swap on it, and was going to drop a wrx tranny into it as well but i dont like how you can just slap it into first. Please keep that this is a off road car and i need to have full control.

I just want to know if anyone has pulled the tranny apart and moded it so it will slam into gear at any rpm. If so please post info or post a link to the info.

The only thing i have found is a "Dog Box" where u dont use the clutch, its just got big dog teeth. but that set up would cost me 6k and i only want to spend about 1k on this problem.

The only other think is to use my the tranny out of the rs but i dont know who it will hold up under the extra 100 whp the 2.0T will put out.

I have heard that even the sti trannys do the same thing, (will not go into first at high rpm)

I understand that lots of people have lots of thoughts on shoulds and should nots about this, but im only looking for how to MAKE this happen the way i want it to, and i want to down shift into first from second, the same way i down shift from third to second.

Again this is not a street car and if i mess up and blow the engine then thats on me.
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