NOT A BIKE!

[dave cullen]

ok, given the expertise on this forum, i thought would ask for advice on a car issue;

ive had nissan micras for years, unburstable wee cars but my latest runabout which has only a genuine 43 k on clock is making a kind of subdued howl or whining noise when you reach about 50 or so in 4th or 5th, it goes away if you put clutch in or knock it out of gear and coast so im assuming its transmission related??

the gears all select perfectly and its making no noises at lower speeds round about town etc;

i would turn the stereo up except it doesnt have one!

any thoughts, ive done all sorts of google searches but nothing really matching problem coming up

thanks guys

[z1bman]

i have a micra on an o2 plate but mine is auto but i have a mate that worked at a Nissan main dealer & when he saw mine he asked about the gearbox & said they do suffer from bearing failure in the gearbox & this applies to the manual gearbox as well

[Zed man]

Sounds like a, Thrust bearing.. It's the bearing that separates the clutch, when you press the clutch in.. So when you push the clutch pedal in it dissingages the Thrust bearing, so goes silent... So sorry to say.. A gearbox out, and change it.. And while your there, might as well change the clutch, and pressure plate. You will never need to change them again as long as you own the car...

It's the little feller on the right...

https://www.google.co.uk/#q=clutch+thru ... B656%3B495
Not your car, but same idea...
http://youtu.be/SF4hO-G3YxA

[nw66]

[zed1015]

Sounds like a, Thrust bearing.. It's the bearing that separates the clutch, when you press the clutch in.. So when you push the clutch pedal in it dissingages the Thrust bearing, so goes silent...

Sorry! but the thrust bearing is not disengaged when the clutch pedal is pressed in.
Pressure is transmitted through the bearing to the clutch release diaphragm spring on disengagement of the clutch.
If the thrust bearing is dry or breaking up then the squeal usually gets more pronounced as pressure is applied.
With the noise ceasing upon clutch disengagement this indicates the gearbox, output bearing or portions of the clutch as a likely cause.

[sid123]

undo gearbox drain plug and capture some oil - spread it out on a clean sheet of A4 paper and look for metal swarf -

[skibs]

these are prone to gearbox bearing failiure.
check front crossmember for rot & rear spring mounts before spending
money on box.

[dave cullen]

THANKS GUYS FOR REPLIES SO FAR, LOOKS LIKE A GEARBOX BEARING PROBLEM, SUSPECT IT MAY GO ON FOR A GOOD BIT LIKE THAT, FINGERS XD, THEY ARE TOUGH LITTLE CARS, ONLY COST ME A FEW HUNDRED QUID, SO RELUCTANT TO SPEND MUCH ON IT AS ITS JUST FOR RUNABOUT

[jimmock]

THANKS GUYS FOR REPLIES SO FAR, LOOKS LIKE A GEARBOX BEARING PROBLEM, SUSPECT IT MAY GO ON FOR A GOOD BIT LIKE THAT, FINGERS XD, THEY ARE TOUGH LITTLE CARS, ONLY COST ME A FEW HUNDRED QUID, SO RELUCTANT TO SPEND MUCH ON IT AS ITS JUST FOR RUNABOUT

Typical SCOTSMAN!!!!!

[dave cullen]

THANKS GUYS FOR REPLIES SO FAR, LOOKS LIKE A GEARBOX BEARING PROBLEM, SUSPECT IT MAY GO ON FOR A GOOD BIT LIKE THAT, FINGERS XD, THEY ARE TOUGH LITTLE CARS, ONLY COST ME A FEW HUNDRED QUID, SO RELUCTANT TO SPEND MUCH ON IT AS ITS JUST FOR RUNABOUT

Typical SCOTSMAN!!!!!

aye my bikes get money thrown at them, but bangers are bangers, now my Golf R, thats different