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2005 Evo 8 No reverse. any help? video inside

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Old Jul 29, 2012 | 09:33 AM
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2005 Evo 8 No reverse. any help? video inside

https://www.youtube.com/watch?v=OcdW...e_gdata_player

Video pretty much explains it. Just changed to amsoil tranny fluid yesterday. Also adjusted my clutch pedal. No good. Thanks for any help ahead of time.
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Old Jul 29, 2012 | 01:26 PM
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Bump. Anyone else have this problem?
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Old Jul 29, 2012 | 06:22 PM
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Needs a new clutch
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Old Jul 29, 2012 | 06:36 PM
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bbbbbbbbb

was it there before you adjusted the clutch? if not, i'd re-readjust your clutch pedal.
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Old Jul 29, 2012 | 06:40 PM
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Originally Posted by N33d4sp33d
Needs a new clutch
Thank you for the reply. Clutch has 1500 miles on it. Does it sound like synchros at all? Or how does a bad clutch cause this? All other gears engage perfect but reverse.. slight grind at high rpms when shifting from 3 to 4th quickly.
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Old Jul 29, 2012 | 06:41 PM
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Originally Posted by heavens turbo
was it there before you adjusted the clutch? if not, i'd re-readjust your clutch pedal.
Yes I adjusted the clutch because of this problem .. same with the fluid change.. thanks.
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Old Jul 29, 2012 | 07:06 PM
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something in the trans. is your 5th gear working? synchro or reverse idler or something like that. going inside the tranny! hows the linkage? maybe cables binding?or came loose from tranny? take to shop and update.

Last edited by heavens turbo; Jul 29, 2012 at 07:10 PM.
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Old Jul 29, 2012 | 07:48 PM
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Originally Posted by heavens turbo
something in the trans. is your 5th gear working? synchro or reverse idler or something like that. going inside the tranny! hows the linkage? maybe cables binding?or came loose from tranny? take to shop and update.
Yes fifth gear is fine. Checked all shift linkage and connectors at the tranny..also checked shifter itself.. It looks good to me.. I will call the shop tomorrow ... Thanks for all the suggestions.
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Old Aug 1, 2012 | 06:42 AM
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They claim synchros. I am open to other opinions as well. Not that I don't trust them, I just know they aren't evo specialists (but by no means amateurs) These cars are far from ordinary.
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Old Aug 1, 2012 | 10:35 AM
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basically, theres only a handful of possibilities it can be with a no reverse condition. it can only be mechanical, so you can rule out electrical possibilities. 5th and reverse use the same syncrho, with a reverse idler gear over there. if it grinds, like it is, that means that there is meshing problems. there are two actions that engage the gears, clutch and synchros. clutch seems ok, as you describe, so it narrows it down to internal. you would be able to check the clutch when tranny is dropped, but yes, you may have to go internal. good luck brother. it could be a bent shift fork too, but at any rate, its internal.
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Old Aug 1, 2012 | 11:03 AM
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its syncros, they arent allowing the gear to be grabbed fully by the slider and the spring isnt holding it. i bet it was hard to get into reverse for awhile too. The reverse gear portion of the output shaft it the highest out of all of them, if you run it low on oil this and 5th will be the first to go. Once the trans is out rebuild the whole thing, dont peice meal it. a OEM rebuild kits isnt that much and its a easy trans to rebuild with the proper tools [press and plasti gague set]

Last edited by blowngasket; Aug 1, 2012 at 11:12 AM.
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Old Aug 2, 2012 | 01:05 PM
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Thanks everyone for the replies.. I never ran it low on oil and 5 gear still feels very solid. Also, You are correct, it was a bit tough getting in reverse for a while. Sometime it would just "wurr" if it wasn't in correctly.
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Old Aug 2, 2012 | 01:37 PM
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Yep, its your reverse syncros then might have some wear on the dog Teeth of the reverse gear too but you can clean that up. If your doing it yourself i have a video coming soon of a HOW-TO rebuild a 5 speed, im just waiting on the parts right now and mine is totally torn down.
im going over the whole trans, and showing how to make it shift smooth at high RPMS and the WHY does it pop out of gear and why it wont go into gear questions and show the parts that do it and how they work together.

Here are some pictures so you can see exactly what parts are what this is the reverse gear set up, mine is apart due to a needle bearing exploding and locking the car into 5th Gear Due to the Tcase seal blowing out on the highway and leaking all the trans fluid into the Tcase and the Tcase throwing the fluid out thru the breather.
You can see Even my Reverse Syncro is going by the wear on the inside and outside of the syncro Ring











Last edited by blowngasket; Aug 2, 2012 at 01:56 PM.
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Old Aug 3, 2012 | 07:08 AM
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That last picture where the gear is a tad worn on the edge. Is that the dog teeth you are speaking of? Or is that the synchro? The pictures are awesome man this is very informative! I appreciate it.
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Old Aug 4, 2012 | 02:15 PM
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the last picture is of the reverse gear and the dog teeth. they are not worn down that bad its atucly supposed to be cogged like that when the syncro brings the gear up to speed the slider can easily go in to the gear... umm think of two triganles slideing into each other they have to pass each other thats what the slider does and the syncro helps its and brings the Gear to the same speed so you dont have to double clutch. Its worn right where the pliers are pointing at the top there was burring i filed it its all good now. and that was due to a worn down slider hitting it and chattering.

the Syncros are the brass peices their, which have a wear part to them. that helps grab the gear to bring it up to speed and sync the slider with the gear amoungist keeping the pressure on to keep it in gear with the help if the slider spring the spring is what you feel on the shifter when it locks into gear. the gear your not in is free wheeling at the time BEFORE you shift but in cog with the moving Gear on the input shaft so its moving. thus the slider has to be brought up to speed in odrer to catch the gear without Grinding, or you would have to blip the throttle and rpms to catch the next gear.

Last edited by blowngasket; Aug 4, 2012 at 02:24 PM.
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