2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

blocked when downshifting to 2nd

Thread Tools
 
Search this Thread
 
Old Mar 5, 2004 | 12:31 AM
  #1  
Cybaster's Avatar
Thread Starter
I think I'm addicted
 
Joined: Feb 2004
Posts: 749
Likes: 2
From: Castro Valley
Exclamation blocked when downshifting to 2nd

Hello
when i drive my TII, in 3rd gear and i try to downshift to 2nd, but it seems like there is a door not allowing it. This happens in 4th gear downshifting to 3rd also. I was wondering what is the matter(if any) is with my TII. When I am in 3rd gear, my RPM is around 2000, so downshifting to 2nd should be ok. SOMEONE PLEASE HELP
Reply
Old Mar 5, 2004 | 12:36 AM
  #2  
mr_vaughn's Avatar
Chillin
Tenured Member: 20 Years
Liked
Loved
Community Favorite
iTrader: (1)
 
Joined: Feb 2002
Posts: 684
Likes: 5
From: LA,CA
i almost have had the same issue but mine still works just......
with a center force dual friction clutch and my current Racing beat street clutch .
both have had the MazdaTrix short shifter
Reply
Old Mar 5, 2004 | 12:40 AM
  #3  
Cybaster's Avatar
Thread Starter
I think I'm addicted
 
Joined: Feb 2004
Posts: 749
Likes: 2
From: Castro Valley
I mean, when i try to slow down from 4th to 3rd, sometimes it doesn't work

but sometimes i want to slow down from 3rd to 2nd, and it almost NEVER works

and i was wondering if it is my Transmission or clutch that is causing this. Or am i doing something wrong?
Reply
Old Mar 5, 2004 | 12:41 AM
  #4  
RETed's Avatar
Lives on the Forum
Tenured Member 10 Years
 
Joined: Feb 2001
Posts: 26,664
Likes: 22
From: n
It's called rev-matching, and your synchros don't like it when you do that unless you rev match.


-Ted
Reply
Old Mar 5, 2004 | 01:04 AM
  #5  
Full Member
Tenured Member 05 Years
 
Joined: Jul 2003
Posts: 94
Likes: 0
From: Kansas city Mo
I dont really have that problem but rev matching (tapping the gas to the amount of revs you were at before pushing in the clutch) is a very good idea, less stess on tranny. I do it as a part of my daily driving and performance driving.
Reply
Old Mar 5, 2004 | 01:05 AM
  #6  
Madrx7racer's Avatar
Banned. I got OWNED!!!
 
Joined: Nov 2002
Posts: 312
Likes: 0
From: San Jose, CA
throw-out bearing?
Reply
Old Mar 5, 2004 | 01:43 AM
  #7  
Full Member
Tenured Member 05 Years
 
Joined: Jul 2003
Posts: 94
Likes: 0
From: Kansas city Mo
just get a new stage one or 2 centerforce clutch, not too expensive, but then i do work at keystone automotive, in the warehouse so i see this stuff all day.
Reply
Old Mar 5, 2004 | 09:24 AM
  #8  
truespin88's Avatar
truespin, not tirespin
Tenured Member 05 Years
 
Joined: Nov 2003
Posts: 655
Likes: 0
From: Belpre, Ohio
Double-clutch rev-matching is for cars without synchros.
And drifting, for proper control. However... for street driving? Doesn't really make a difference. I don't, and I don't have a problem downshifting.
Reply
Old Mar 5, 2004 | 12:02 PM
  #9  
Rookie84's Avatar
Rotary Enthusiast
Tenured Member 15 Years
 
Joined: Mar 2002
Posts: 1,283
Likes: 2
From: Seoul, Republic of Korea
You don't have to double-clutch. Rev matching is a must if you want your tranny to last. We're not talking about heel and toe here.
Reply
Old Mar 5, 2004 | 12:20 PM
  #10  
kitchen's Avatar
Full Member
Tenured Member 05 Years
 
Joined: May 2003
Posts: 95
Likes: 0
From: Grand Blanc MI
It doesn't take extra effort once you learn it...

And a perfectly matched downshift is always hella sweet.
Reply
Old Mar 5, 2004 | 12:25 PM
  #11  
TooMuch4You's Avatar
Senior Member
Tenured Member 20 Years
 
Joined: Dec 2002
Posts: 392
Likes: 0
From: Portland
Originally posted by kitchen

And a perfectly matched downshift is always hella sweet.
Amen brother.
Reply
Old Mar 5, 2004 | 12:25 PM
  #12  
air_n_water's Avatar
Junior Member
Tenured Member 05 Years
 
Joined: Mar 2004
Posts: 24
Likes: 0
From: Rockwell, NC
Keep in mind that if you are down-shifting to slow down, brakes are much cheaper to replace that clutches.
Reply
Old Mar 5, 2004 | 12:29 PM
  #13  
1987RX7guy's Avatar
Eat Rice Don't Drive it.
Tenured Member: 20 Years
iTrader: (3)
 
Joined: Nov 2002
Posts: 12,752
Likes: 1
From: Laredo, Tx
Originally posted by RETed
It's called rev-matching, and your synchros don't like it when you do that unless you rev match.


-Ted
Always try to rev match myself. Still working on perfecting it.
Reply
Old Mar 5, 2004 | 12:35 PM
  #14  
fstrnyou's Avatar
Rotary Enthusiast
Tenured Member 05 Years
 
Joined: Sep 2002
Posts: 1,233
Likes: 0
From: Statesboro, GA
Originally posted by air_n_water
Keep in mind that if you are down-shifting to slow down, brakes are much cheaper to replace that clutches.
rev matching cause almost no wear on the clutch, where as down shifting does. just something to think about
Reply
Old Mar 5, 2004 | 12:42 PM
  #15  
BlackRx7's Avatar
Daily Domestic Killer
Tenured Member 10 Years
 
Joined: Mar 2001
Posts: 2,425
Likes: 0
From: San Antonio, Tx, USA
The abuse in downshifting is done to the bearings in the tranny as well as stressing your LSD....I just slow down in the same gear I was driving in then, I use the brakes to come to a stop, downshifting is fun but it put alot of abuse to the car, why not leave the launching and accelerating to do the abuse.
Reply
Old Mar 5, 2004 | 12:51 PM
  #16  
Digi7ech's Avatar
I break Diff mounts
Tenured Member 20 Years
iTrader: (1)
 
Joined: Jun 2002
Posts: 4,403
Likes: 4
From: Avondale, Arizona
Yeah sounds like Syncro's almost. Mine would stop and not go into 2nd from 3rd unless it spun down to a low RPM.

Double clutch/Rev matching rocks.
It not only saves your syncros but you become a better driver.

I use to rev match instinctively even on the newer cars.
Reply
Old Mar 6, 2004 | 05:04 AM
  #17  
Cybaster's Avatar
Thread Starter
I think I'm addicted
 
Joined: Feb 2004
Posts: 749
Likes: 2
From: Castro Valley
I was also wondering... because my clutch FEELS stiffer than others, and when i start my car i have to PRESS DOWN VERY VERY HARD to start and sometimes even then it won't start. my 1st gear is REALLY sensitive, i release the clutch even only .5 inches (a little exagerated) and the first gear is engaged, My sister said that (she has been driving longer than i have on stick, sports cars mind u) the "depth" of the clutch pedal can be changed. make it a little HIGHER so not as sensitive and more "room" for giving gas and releasing the clutch so somewhat less sensitive. Is it because my clutch pedal is so stiff compared to others, that even when i press on the clutch pedal, the clutch disengage less than other cars and so from 3rd to 2nd, its harder to shift and when i do downshift it seems like i didn't step on the clutch all the way?

Sorry, i know its confusing (and somewhat denial maybe....)
Reply
Old Mar 6, 2004 | 06:23 AM
  #18  
Tofuball's Avatar
Jesus is the Messiah
Tenured Member 15 Years
 
Joined: May 2003
Posts: 4,848
Likes: 0
From: Silver Spring, MD
^ Your sister is right. While you're there, you might want to check the hydrolics too. There are other things it might be, but check that first. (Other things are more expensive)

I double-clutch on all of my cars. Saves synchro life, and on my 7, the tranny complains a lot less. I do it by habbit now, when I was teaching my girlfriend stick, I kept doing it by accident when I was showing her how to shift.

Calling it 'Rev-Matching' always makes me think of shifting without using the clutch . . .
Reply
Old Mar 6, 2004 | 10:39 AM
  #19  
Cybaster's Avatar
Thread Starter
I think I'm addicted
 
Joined: Feb 2004
Posts: 749
Likes: 2
From: Castro Valley
any experts have any other comments? because i am already stressed out that my 7 eats so much gas =P its hard for me to think that i have to fix another BIG thing =D if the clutch just doesn't open up enough, then its cool. I'll get that fixed right away.
Reply
Old Mar 6, 2004 | 11:41 PM
  #20  
totallimmortal's Avatar
Is that thing Turbo?
Tenured Member 05 Years
 
Joined: Jan 2004
Posts: 1,411
Likes: 0
From: Maryland
I have a similar problem its really hard to pull into second when down shifterin, rev matching and double clutching don't seem to help at all, bad synchros maybe?
Reply
Old Mar 6, 2004 | 11:52 PM
  #21  
astrochild7's Avatar
controlled kaos
Tenured Member 20 Years
iTrader: (3)
 
Joined: Nov 2002
Posts: 908
Likes: 1
From: eugene, or
rev match is a must if you are a competent driver... your synchros will go.. change your trans fluid if you see bronze dust in the fluid<<<<<<
Reply
Old Mar 6, 2004 | 11:58 PM
  #22  
Davidov's Avatar
Senior Member
Tenured Member: 20 Years
iTrader: (2)
 
Joined: Jun 2003
Posts: 602
Likes: 0
From: FWTX
You could have an aftermarket clutch in there...
most heavy duty pressure plates require more out of the hydraulics than the stock plate, and you get a VERY short pedal engagement area in return.

Try adjusting the clutch pedal and see what happens.
Reply
Old Mar 7, 2004 | 12:37 AM
  #23  
Rookie84's Avatar
Rotary Enthusiast
Tenured Member 15 Years
 
Joined: Mar 2002
Posts: 1,283
Likes: 2
From: Seoul, Republic of Korea
If you have an aftermarket clutch, then can you adjust the clutch pedal to allow yourself more engagement area? Mine is like at the very bottom of the pedal travel coz of god damn aftermarket clutch.
Reply
Old Mar 7, 2004 | 01:23 AM
  #24  
oregano's Avatar
Senior Member
Tenured Member 10 Years
iTrader: (1)
 
Joined: Nov 2003
Posts: 428
Likes: 0
From: miss, Ontario
wow. lots of bad info here. too much too even list and argue.
anyways, sounds like a) your synchros are dying, or
b)your clutch is not disengaging fully.
most likely, it is a. double clutching will help u out here. double clutching will allow u to shift into any gear no matter how bad your synchros are. i suggest u do some research on double clutching, or u rebuild a tranny that u pick up somewhere. either way, it is a great learning experience.
Reply
Old Mar 7, 2004 | 02:37 AM
  #25  
Cybaster's Avatar
Thread Starter
I think I'm addicted
 
Joined: Feb 2004
Posts: 749
Likes: 2
From: Castro Valley
well for today, every gear i shift into and downshift i've been rev-matching. obviously the ride is smoother =P and if i PRESS on the clutch with ALL MY WEIGHT when i am downshifting into 2nd gear. i can usually get into second gear when i couldn't before but i still hear scraping... so i am leaning more towards the after market clutch theory and should adjust my pedals. but i think i'll looking into the bronze dust also. but basically its like what oregano said? a) bad synchros, b) clutch not disengaging
Reply



All times are GMT -5. The time now is 03:33 AM.