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Discussion Starter · #1 ·
As some of you already know,I hyst got my R a couple days ago. One thing just keeps bugging the S... out of me!
I drive alot with my hand resting on the shifter and I cant stand when I tap the gas, feeling the whole trans. moving! I know from what ive learned in the past its probabally a dookie rubber mount that needs to be upgraded. From what I can tell from reading , its the dogbone that is at fault. Please clue me in on this issue. Is that all I have to change out to fix this problema? If so any oppinions on the best replacement? TIA
http://****************.com/smile/emthup.gif
 

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Re: Nasty tranny slop?? (skizzle168)

i don't think changing the trans mount will cut down on the slop in the gear box. going to have to put in a SS kit for that . You can put in the trans mount either EIP or VF and it will stiffen it up a bit. You won't notice a huge difference unless you replace all the motor mounts.
 

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Re: Nasty tranny slop?? (andru1313)

Replace all three motor mounts and the problem will go away.
SS won't change anything if you can feel it moving when you're on/off the gas
as that indicates that the engine/tranny is moving physically.
And really you shouldn't drive with your hand resting on the shifter
all the time. It wears out the synchro rings, and shift selector forks.
ian
 

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Re: Nasty tranny slop?? (Daemon42)

Quote, originally posted by Daemon42 »
Replace all three motor mounts and the problem will go away.
SS won't change anything if you can feel it moving when you're on/off the gas
as that indicates that the engine/tranny is moving physically.
And really you shouldn't drive with your hand resting on the shifter
all the time. It wears out the synchro rings, and shift selector forks.
ian


please explain this.......TIA
 

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Re: Nasty tranny slop?? (Daemon42)

I think he means the wearing things out by resting your hand on the shifter. If not, I would like to know more about this. I usually leave my right hand on the shifter - little pressure, not yanking on it, just hold it, usually during spirited driving when I'm usually up and down through the gears anyway. When I'm just cruising I usually have both hands on the wheel. Just trying to get a better understanding of what/how I could be damaging. Is there any way to tell. I don't understand enough about transmissions to really get it, but it seems that since it's a cable system, if you're not putting any significant tension on the cable, no tension is transmitted to the gear selector lever on top of the tranny. Please enlighten me! Don't want to be trashing my baby through bad habits. Thanks!
 

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Re: Nasty tranny slop?? (r32redneck)

Doesn't matter that it's cable linkage. If you can feel vibration through
the shifter then it's coming from the far end of the cable, which is connected
to the shifter arm on the tranny. The shifter arm is connected
to the gear selector forks which is connected to a ring between
each pair of synchronizers called a collar. The synchros are always spinning
at the same speed of the output shaft. The collar that connects to the
selector fork is not, which means there's a bearing between them.
(edit: In some cases there isn't even a bearing. There's just a ring
with a slot in it and the selector fork slides in the slot.)
That bearing is meant to take a thrust (side load) only while
you're selecting and deselecting gears (by sliding the
spinning synchro and dog teeth until they mesh with the
dog teeth on the side of each regular gear).
Once the gear as been selected, there is not supposed to be a thrust
load the collar as it'll wear out the bearing (same as if you
left your foot on the clutch pedal all the time it'd wear out the
throw-out bearing and sometimes the engine's main bearing).
Also the gear selector fork usually terminates in two little fingers that
rest lightly in a groove in the collar. If there's any sustained pressure
between the fingers and the collar then vibration of the engine/tranny
causes increased wear between fingers and collar and the
shifter gets physically sloppier over time.
Keep in mind there are no physical stops to the shifter arm in
the tranny. The only thing that stops it from moving further is when
the collar's dog teeth engage the selected gear's dog teeth and the
collar can't be slid any further. The "stop" you feel is a thrust load
on the collar's bearing.
And I'm not saying you can't rest your hand on the shifter when
you're rowing through the gears (although a racer will tell you
it's still better to put your right hand back on the wheel between shifts
for full control). It's just that the practice of resting your hand
on the shift knob all the time is generally frowned upon, for
the reasons I've outlined above.
See the diagrams on this page
http://auto.howstuffworks.com/transmission3.htm
for more info. (Note, the animated diagram is really cool looking
but the gear speeds are all wrong, and the synchro rings should
be spinning, but aren't, which is unfortunate because
it would *really* help people understand how tranny's work
if they could get that right)
ian

Modified by Daemon42 at 11:08 PM 2-3-2007


Modified by Daemon42 at 11:53 PM 2-3-2007
 

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Re: Nasty tranny slop?? (Daemon42)

Ian, you're such a badass!

Listen to this man, he knows his stuff!
When I replaced my mounts, the shifter movement went away. And definitely learn to drive with your hand off of the shifter!
 

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Re: Nasty tranny slop?? (Daemon42)

very educational! http://****************.com/smile/emthup.gif
If you want to improve the slop a little
just get the vf trans mount. if you
dont mind feeling a little engine vibration
then get all 3, its like night and day.
 

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Discussion Starter · #11 ·
WOW!! I love the Vortex!! You ask one question and get schooled on a whole different subject by mentioning a random, bad habbit that helped you initially notice the first problem! I honestly never even thought about damage to the trans. components. Yes Ian is definitelly a badass! I love soaking in the knowledge from the OG's.
Garey, I know ideally all three mounts would be ideal, nut considering I just got my R a week ago, im still a little shell shocked at how much $$ I just spent on a car! So... My Q is, if you had to pick (to start) would you say the solid rear is more beneficial than the front 2 mounts? Or is it a tossup?
Thanks for the help guys. Much appreciated!!
 

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Re: (dogmavskarma)

Quote, originally posted by dogmavskarma »
i remember that someone did just one mount way back in 04 and it wasn't a good result.
if you do all the VF eng. mounts, do all 3 at the same time and do it right.

Tons of our customers run just the pendulum mount. , including me at one point
. It is perfectly safe, and extremely beneficial to run just the pendulum mount. Of course, the full set of three is better...but not mandatory.
DO NOT run just the upper mounts without the pendulum mount. Not a great idea.
 

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Re: ([email protected])

Quote, originally posted by [email protected] »

Tons of our customers run just the pendulum mount. , including me at one point
. It is perfectly safe, and extremely beneficial to run just the pendulum mount. Of course, the full set of three is better...but not mandatory.
DO NOT run just the upper mounts without the pendulum mount. Not a great idea.

And on the complete opposite end I run all but the torque mount but the BFI Stage 2 is not holding up as well as I would like against the VF mounts.
 

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Re: Nasty tranny slop?? (azsightsound)

Quote, originally posted by azsightsound »
Ian, you're such a badass!

Listen to this man, he knows his stuff!

Yeah no kidding, very educational.
http://****************.com/smile/emthup.gif
 

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Re: Nasty tranny slop?? (jettin123)

i run the vf dogbone and the movement is still there. it was annoying me just tonight on the way home. the dog mount improved the situation, but did not totally eliminate it. i'm planning on doing the other two before the summer.
 

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Re: Nasty tranny slop?? (JayJetta)

Quote, originally posted by JayJetta »
i'm planning on doing the other two before the summer.

Trust me, that will delete 98% of the remaining movement http://****************.com/smile/emthup.gif
 
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