Crank Pulley Noise, Nissan SR20DE, both drive belts removed

[Matt]

What year is the car?

Topic

[Cheezit]

The engine is a 1991 SR20DE with almost 211,000 mi.

[Cheezit]

You can hear the noise here—->

[college man]

to me the noise is from the crank end bearing. nothing you_x000D_
can do now. keep driving it._x000D_

[Cheezit]

Thanks for the feedback college man.

[619DioFan]

[quote]Quoted From Cheezit: _x000D_
_x000D_
Thanks for the feedback college man.

[JoshMc]

I watched the video and it sounds like the timing tensioner is way too loose to me and the teeth on the gears are hitting the links on the chain. I say this because if you listen carefully you will hear the when the engine is slowing down after being revv

[Matt]

I agree with College Man.

[Cheezit]

It’s a ’91 Infiniti G20 with Nissan SR20DE engine.

[Cheezit]

Thanks collegeman.

[Cheezit]

_x000D_
Thanks collegeman.

[college man]

what would contribute to the crank bearing failure would be_x000D_
the drive belts being to tight. Pulling on that bearing puts undo_x000D_
stress on that bearing. The bearing won’t run straight any more._x000D_
It does take time to happen. but the end result is what you g

[dreamer2355]

You could also use a mechanics stethoscope or a very long screw driver to see if you can isolate the noise._x000D_
_x000D_
But with the oil pressure light coming on, that is a concern._x000D_
_x000D_
Keep us posted.

[Cheezit]

I really appreciate the feedback, Beefy, collegeman, JoshMc and 619DioFan.

[dreamer2355]

I would stick with the OEM recommend oil viscosity._x000D_
_x000D_
Using too thick of an oil will cause oil starvation issues at start up._x000D_
_x000D_
Becareful of the Lucas Oil additives as it is a very thick oil additive -_x000D_
_x000D_
http://www.bobistheoilguy.com/forums/ubbthreads.

[Cheezit]

dreamer2355:

[Author]

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