Thread: SR20VE rattle noise

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2011-02-07 03:23:27

#11

amdeman

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Originally Posted by booge

Come on guys...this one has me a little bonkers...This is the video of the noise...

1. Listen as i yank the tb to simulate tipping the gas pedal. Notice the rattle noise ? -
2. Listen as i gradually rev the engine - no noise.

Its only when you tip the "pedal" that the noise comes. On driving - when you accelerate its there as well..

YouTube - SR20 ve noise.AVI

Sounds like bad Pre-det (not a great thing).
If it's a standard SR20VE ECU mine did the same (they run high timing at light loads).

Which injectors are you running, what timing, where is the TPS set, etc?

In the video it looks like the rocker cover or valve cover has been off at some stage (the red goop under the seal). If so, may pay to check that the shims are correct, or that they're there...

Or... Sticky injector(s), noisy, possibly not supplying enough fuel on demand.

Hopefully some help in tracking down the culprit it fixing it.

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2011-02-07 03:29:27

#12

booge

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Quick one - I emptied a whole bottle Amsoil Octane Boost - could this be the problem ?.............

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2011-02-07 11:56:52

#13

booge

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Sos help

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2011-02-07 12:46:31

#14

minair

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sounds like a loose flywheel to me

Last edited by minair on 2011-02-07 at 12-47-04. Reason: misspelling

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2011-02-07 12:48:36

#15

booge

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Flywheel ?? - Im auto transmission man...

SOS nissan gurus...come on someone must have had these symptoms and got it sorted out

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2011-02-07 13:21:54

#16

Dudeman258 Online/offline status of Dudeman258 is unknown

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I have stock ve cams I would sell if you are interested (in us so shipping wouldn't be cheap).

Looks like you have a good start into diagnosing the problem.

Dudeman

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2011-02-07 15:01:03

#17

booge

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I have a complete VVL engine on the ground @ home. However, changing the parts is not the answer. Gotta first figure out whats causing it before swapping any parts.

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2011-02-07 15:12:30

#18

BenFenner

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Originally Posted by nismo94tuner

I would pop off the valve cover and crank over the motor and see if oil is being delivered over the cams. Just make sure disconnect the distributor so it doesn't spray fuel. Could disconnect the fuel pump fuse if you feel need be. I would do that just to get an idea and see if possibly one of the tubes are clogged.

Have you done this yet?

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2011-02-07 15:51:27

#19

M0J0

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