High pitched whine from block...What the?

[mrdirty]

Like it says up there, I'm hearing a rev enduced whine from the block, can't isolate it...


Anyone have any ideas what this could be?

[wren240sx]

is it coming straight from the block? the only thing i could think of is your power steering. i got a whine cuz i got low on power steering fluid. then i let it go on long enough that i think i burnt out a bearing or something in the power steering motor, so even if i do have fluid it still makes the whine noise. . if anyone can tell me how to fix this cheap please tell me heheh its sorta embarassing

[wren240sx]

anyone else got ideas?

[boosteds14]

better hope it isnt a bearing

[SRKperformance]

its prolly the throwout bearing or the pilot bearing in the tranny not the block.

[mrdirty]

Originally posted by boosteds14
better hope it isnt a bearing

exactly what I didn't want to hear :(

I think's it's a bearing as well....

Any way to tell w/out pulling it apart??

[turboex]

If its like a honda just. pull the pan, then splash shild, then caps and rod ends. I have to do it to one tomorrow as it has a slight knock

[Jeff240sx]

Originally posted by turboex
If its like a honda just. pull the pan, then splash shild, then caps and rod ends. I have to do it to one tomorrow as it has a slight knock

Yea. It's not like a honda. The oil pan in a 240sx is a pain in the ass to drop out. You need to unbolt the motor mounts, tranny mounts, jack up the engine, and wiggle out the pan. It sucks.
-Jeff

[mrdirty]

I don't hear any knock, but it's now progressed into an earsplitting whine....

guess I have to admit defeat and bring 'er in to a shop....

[kanekz]

I think i have the same exact problem! It has somehting to do with the power steering. Even when I turn the wheels when the car is stopped (car is running), it whines a little.

[mrdirty]

OK mystery solved, idler pulley....
phew!

[Dyfedd]

You could have a leak somewhere in your intake manifold. Maybe where the manifold and head meet the gasket is damaged.

[d240t2]

A dollar says you are low on power steering fluid. Remember, use ATF, not PS fluid for power steering.

Does the noise go away if you push in the clutch/let out of the clutch? If not, it probably isn't the pilot bushing or throwout bearing.

Dennis

[mrdirty]

Thanks to everyone who posted,

turned out to be the idler pulley bearing and the alternator bearings;

think i'll change to a smaller drive pulley dia to hopefully avoid this...