“How To”-Getrag Shift Linkage-Counterweight Removal - Page 16 - Focus Fanatics
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Old 09-26-2006, 04:09 PM   #151
tazz3131
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ok just did the mod and did read all 13 pages of this stuff and found nothing on my problem, my tranny light is on. so i have no clue but i drove down to the gas station drove all 6 gears and downshifted and they are all there and work no problems, but the tranny light is on i think it's mad about me taking off the weight, but trying to take it off i did move it side to side to find the best pisiton (sorry my spelling is bad i just spent 3 months in mexico city lol my english is bad) to get at with the wrench, any ways it works fine i like it but i don't like the tranny light. HELP por favor... lol
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Old 09-26-2006, 04:39 PM   #152
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^^^I'd ask that question in the Technical Chat Forums...
EDIT
Response is in this thread now:
http://www.focusfanatics.com/forum/s...postid=1253996
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Old 09-26-2006, 05:57 PM   #153
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Quote:
Originally posted by NvyGuardsman
Does this only work on the SVT or is it the same on all manual foci?
SVT (Getrag) only.
You have to cut the counterweight off of The MTX-75 (5 speed), and I'm not exactly sure where to cut it.
Best to ask about that in the Zetec Performance Chat...
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Old 09-27-2006, 07:52 AM   #154
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i drilled off the weight itself and re-installed the arm piece. from my experience of removing it completely, and the way i have it now, id suggest to everyone to remove the wieght and re-install the arm. its a happy medium
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Old 09-27-2006, 07:57 AM   #155
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Scrammer, with just the arm in place is some did some of the notchiness go away?
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Old 09-27-2006, 11:57 AM   #156
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^^yes. some of the notchiness did go away! its like combining both worlds. notchiness and easy throwablility. a must-do mod in my book! just start drilling from underneath the wieght. eventually the "rivet" will go away, and the wieght will fall off. dont burn your bit and keep it lubed.
happy modding
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Old 09-27-2006, 06:48 PM   #157
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Worst mod ever. Shifter felt like crap, put the weight back on and its like butter.
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Old 09-29-2006, 09:34 PM   #158
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Nice mod.
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Old 10-01-2006, 08:35 PM   #159
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Only just noticed this thread as I'm a relative newbie...

I am however a transmission design engineer, and can hopefully add a little insight...

As some have figured out, this mass is called an inertia damper. It isn't to do with making shifts slower / quicker or anything like that; it's purely to increase shift comfort for the driver; specifically as the synchro momentarilly comes 'off block' towards the end of the synchronising action, which (as stated by those who've experienced it) creates an unpleasant 'shift notch' - also known as shift nibble or shift Buzz.

It's an interesting phenomenon - and you can build two transmissions seemingly identically, with the same stackup and tolerances - and they can have different effects. In a full production run - you can experience vastly differing results - just like shown by the vary differing and random reports here. Clearly no-one would buy a car that buzzed your hand every time you shift, so a unit like this is added to damp the shift oscillations coming OUT of the transmission back up to the shifter...

It performs its task simply by being a mass that these high-frequency (but low magnitude) oscillations cannot accelerate, hence damping them out.
It does natuarally make for a slightly more 'wooly' shift, but this is an acceptable trade-off from an OEM perspective.

As regards why the job wasn't done properly the first time - especially as many other OEM trans don't have them; well you don't design synhros to do this - and there are many factors that affect it - gear/shaft inertia, clutch friction disc inertia, speed, oil viscosity, stackup, engagement tooth angler / offset, etc... Basically - if shift nibble is realised through the prototype testing - then it's a damn site easier to stick a mass on the end of the shift arm than it is to re-design the synchros!!!

Finally - If you remove the mass, you certainly won't be doing any harm to the trans - even if it buzzes to the point that is uncomfy.
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Old 10-02-2006, 08:12 AM   #160
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Thank you so much for finally telling everyone that this WONT hurt the trans. I have tried to tell everyone but some still think this will cause damage. On a side note there Dave, can you get your hands on any of the other gearing for the 285 trans?
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