have you guys tried either of these?

putting it in first, rolling forward like an inch, stopping , then trying reverse?

also try this:

1. with the gearbox in neutral and clutch NOT depressed, blip the throttle (maybe 200-400 rpm's above idle)
2. depress the clutch pedal
3. try reverse

let me know if this helps any, i had a grind going into reverse in my '97 civic and both of these stopped it

 

The problem is not going into reverse. It's after the transmission is in reverse, and then occurs when rolling backwards (transmission in reverse) when the clutch pedal is depressed. It's an anoying chatter like sound that I want to ensure is not a problem waiting to get worse.

Additionally, this is my 8th Honda and the only one that's ever made the noise. I never considered the noise the result of synchros or gear meshing either because it has no relation to the 'engagement' of the reverse gear itself, only the depression of the clutch pedal while in reverse.
The chatter noise sounds similar to a rattling bearing and directly coincides with the depression of the clutch pedal while rolling backwards when the transmission is in reverse, and nothing else. The noise does not occur in relation to any forward gear.

The noise began after the transmission was replaced under warranty. The dealer said it's normal, however the car never made the noise until the transmission was replaced.

 

[QUOTE]Originally posted by slipstream444
The problem is not going into reverse.

 

Having seen this thread a while back, I was a bit surprised this weekend when my MY04 with 3K miles made a similar noise. The car had just returned from a 250 mile trip, sat for about an hour with the parking brake engaged, was washed, and sat for 3 more hours before moving. After releasing the parking brake and upon backing up for the first time, I heard the 'thud' from the rear as the car started to roll. My thought is that the parking brake might stick under certain conditions as suggested earlier. The car has not done this since.

 

[QUOTE]Originally posted by energy88
Having seen this thread a while back, I was a bit surprised this weekend when my MY04 with 3K miles made a similar noise.

 

[QUOTE]Originally posted by xviper

 

The noise does not occur in neutral and I tried your suggestion ... engine off ...
and even with the car rolling with the engine on - then subsequently turning the engine off (while rolling in reverse - gear engaged), there is little time to observe any noise because shutting the engine off is like hitting the brakes - therefore the time from engine off to pushing in the clutch pedal (to observe noise) is very short. Additionally, I don't think it's the best thing for the car ... so I only tried it three times. The noise is not noticable using this technique. It maybe was slight, if there at all.

The noise is not there in any gear with the engine off and pushing in the clutch pedal.

 

Not having been there, I can't say with any certainty, but I suppose something could have happened here. Putting the tranny into reverse causes a change in rotational force of some of the parts inside. If it ground hard enough, it's conceivable that something got damaged. (Don't quote me on this. )

 

okay ... played with it a little more today and apparently the noise is there in at least first and second as well ... it's just not as noticable because of several different factors, not the least that you don't use any of your forward gears like reverse.
After simulating the driving conditions in reverse (in the forward lower gears), I noticed the noise when I slowly loaded up first (and then second) and then jammed in the clutch quickly ... got the noise, although it was less noticable.
Could this just be a noisy throw out bearing, or is there a posibility the mechanic didn't grease it up enough when he put it all back together?

 

With your latest round of tests, this is a distinct possibility. Also, it could be an indication that the release fork needs some greasing, too.