I'm looking for mr. Frank from motorcaves.ca or anyone who might know...
with his help we've managed to do a lot to my car but still missing
something:

I've Nissan Maxima -93 (3.0) w/ manual transmission.

I bought it from Germany. Things went just fine until it started to keep
noise like (grrrrr...) while clutch up and gear free (no gear switched).
Keeping the car still and clutch disconnected (clutch down) no noise.
The car gear free and clutch up keeps noise. Gear in (1-5-R) clutch up
noise. And car rolling free (clutch up/connected) keeps noise. (From
Sami Nikkinen: AFAIK Only when not rolling AND clutch down it's not
keeping noise)

I (we)'ve replaced clutch plate and the bearing inside the clutch
housing (in Finnish painelaakeri), but not no bearings inside
transmission box (gear box).

The pitch of the sound changed a bit (towards lower), however it's still
something like grr...or prrrr...

There were some punches in old clutch plate springs as well (1/4 cut or
1/3 cut, but like hitting someting, or could it be from the thing that
keeps clutch plate stable with plate (flat) springs. (yes,
paineasetilma, in Finnish)? [Couldn't figure out how it could be the blame!]

Should I open gear box and change the bearing (drive-power
infeed-axle-bearing(s?) from clutch)? How many bearings should I change?
(yes, all of them, but I would not like to blow it into atoms and try to
figure out how to put it together

Cheers

Kari & Sami

Could be main shaft bearings. When clutch is out, out of gear, the main
shaft still spins. Is there excessive drivetrain wind-up/lash when
accelerating/deccelerating? Play or worn/broken bearing race can cause main
shaft to have "slop" (end play in bearing) and cause noise. Just some
thoughts.

Chris
90 & 94 GXE's

"Kari Erfving" <kari.erfving (AT) gmail (DOT) com> wrote

Chris H. kirjoitti:
one? [there's two other ones, is main shaft the next one?]
noticebly louder.
suppose it [broken bearing] has already scratched the "container", the
aluminium gear box housing.... or could it have done so?

You need to take it out and open it up, or take it to a good rebuilder.
Should cost around US$500-$700 to rebuild on the bench, depending on parts
replaced.


"Kari Erfving" <kari.erfving (AT) gmail (DOT) com> wrote

"ChrisH." <oldpuck81 (AT) yahoo (DOT) com> wrote

That's after it's on the bench. The labor of the pull/install can also
reach $500.

Dave