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Old 05-18-2005, 03:10 PM   #1 (permalink)
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Default Pops out of reverse -- Pictures!

My 1st/2nd syncros are shot, and reverse is poping out into nuetral an awful lot, so I decided to recondition the ol' W6MG1 myself. I was expecting to find a bent reverse shift fork, or something else funky or broken, in addition to rounded dog-teeth from grinding reverse all the time. But all I see are rounded teeth. Would this be enough to cause reverse to pop out? I would think the rounded teeth are a result of me trying to hold it in gear, rather than the poping out resulting from the rounded teeth -- but maybe its cyclic. Unfortunately, I failed to inspect the linkage clearence for reverse before I pulled the tranny. Is there a simple way to tell if a shift fork is bent other than visual inspection?

See attached photos.

Here's separate question: Do I need to replace inner and outer rings even if they look good? The surfaces in contact with the friction ring don't actually wear down do they?

Attn: Bret Brinkmann -- I'd love to hear your opinion on this stuff.

PS: For all you who have never seen the mythical Reverse Synchro, I have captured a photo of it in its native habitat.
Attached Images
File Type: jpg Reverse_Syncro_Sleeve.JPG (98.9 KB, 110 views)
File Type: jpg Reverse_Synchro_Friction_Ring.JPG (50.2 KB, 79 views)
File Type: jpg Reverse_Gear_Detail.JPG (92.2 KB, 90 views)

Last edited by mkmckenzie; 05-18-2005 at 03:19 PM.
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Old 05-18-2005, 08:46 PM   #2 (permalink)
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Default Re: Pops out of reverse -- Pictures!

My "popping" problems were solved with linkage adjustment (per service manual for a completely different car, lol) and making sure I am actually in reverse, by holding it back in the gate and very slowly engaging clutch, most of the time it would "click" in (or thunk in if i was not careful) telling my that it was NOT actually in reverse, but if i had not been holding it to the rear it would grind or pop out. never checked if the teeth were worn though so i cant say its the linkage or the teeth, but so far after i have been making sure its in gear it has never popped out again (even with the linkage issue, which i found out tuesday that might not be completely solved).
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Old 05-19-2005, 01:57 PM   #3 (permalink)
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Default Re: Pops out of reverse -- Pictures!

How about this fella? Does the 1st/2nd sleeve teeth look bad enough to replace? They're better than the reverse sleeve...
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Old 05-19-2005, 07:07 PM   #4 (permalink)
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Default Re: Pops out of reverse -- Pictures!

What the heck -- here's a detail of the 1st gear dog-teeth just to be complete.
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File Type: jpg 1st_Gear_Detail.jpg (96.0 KB, 80 views)
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Old 05-21-2005, 04:25 PM   #5 (permalink)
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Default Re: Pops out of reverse -- Pictures!

I have the same problem on my 93 Stealth SOHC, have not looked into it at all, but when I put it into reverse sometimes I can feel the the shifter has not gone all the way back, I just hold it back then lightly let up the clutch. I can then hear it engage and I am good to go. No grinding or anything. Other than that though, the tranny is all good.
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Old 05-26-2005, 07:43 PM   #6 (permalink)
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Default Re: Pops out of reverse -- Pictures!

Anyone have comments on whether or not the teeth in the above pics are worn enough to need replacing?
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Old 05-26-2005, 11:42 PM   #7 (permalink)
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Default Re: Pops out of reverse -- Pictures!

i'd say the dog teeth on your reverse gear is the main suspect. the dog teeth are cut so they sorda lock when a gear is forced to turn. the wear on the teeth looks like its worn away the angle it usally has that would lock them together. the wear angle is actual whats forcing the two apart or so the pics indicate.

the collar doesnt look so hot either. and you really shouldnt mix old worn parts like that with new ones.

sychro looks good. no burns or chunks missing

1/2 slider is alright as long as you don't want the smoothest shift in the world.

1st gear synchro looks burned. teeth are okay but the same as before, its not gonna be perfect shift.

only problem is $$$$
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Old 05-27-2005, 12:27 AM   #8 (permalink)
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Default Re: Pops out of reverse -- Pictures!

This may sound odd but it was the problem a local RT/TT owner was having after getting his car back from having a shift shaft replaced. He couldnt figure ot out and asked me to come take a look. I had him run the shifter thru the gears and noticed the mechanism on the tranny was hitting the radiator hose. We ziptied the hose up out of the way and it immediately started staying in reverse. Maybe something to check out.
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Old 05-27-2005, 12:52 AM   #9 (permalink)
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Default Re: Pops out of reverse -- Pictures!

didn't read any of this but that camera is the shit. what is it?
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