Lifter knock, How can I id which one?

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Lifter knock, How can I id which one?

Postby benmixmaster » Fri Feb 17, 2012 11:40 am

Lifter knock, How can I id which one it is? Noise does not go away killing any cylinders.
Anybody have any advice?
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Re: Lifter knock, How can I id which one?

Postby IanCrane » Sun Feb 19, 2012 9:32 am

Channel sound into scope along with timing events
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Re: Lifter knock, How can I id which one?

Postby benmixmaster » Mon Feb 20, 2012 6:48 pm

Any good devices for picking up sound captures? mainly for engine related.
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Re: Lifter knock, How can I id which one?

Postby taho » Mon Feb 20, 2012 11:09 pm

benmixmaster wrote:Any good devices for picking up sound captures? mainly for engine related.


The TA095 is a single-axis IEPE accelerometer that is suitable for use in a wide-range of applications
http://www.picotech.com/oscilloscope-ac ... html#TA095
:)
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Re: Lifter knock, How can I id which one?

Postby Alan » Tue Feb 21, 2012 4:58 am

Hi,

The TA095 will not work with a standard PicoScope automotive scope.

Ben - do you still have access to the car with lifter knock?

Thx
Alan
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Re: Lifter knock, How can I id which one?

Postby taho » Wed Feb 22, 2012 12:40 am

alan wrote:Hi,

The TA095 will not work with a standard PicoScope automotive scope.


I so very confidently would not inform. :) With some completions - very well works. Long searched for a sensor , for the decision of similar problems. It was necessary to adapt a few existing sensor controls for work with standard PicoScope Automotive. It is a pity that in an automobile complete set there is no sensor of vibrations.

With best regards,
Denis
Attachments
20120222-0003.gif
Work of injector Common Rail KIA Cerato 1.6 CRDI with an acceleration sensor TA095.
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Re: Lifter knock, How can I id which one?

Postby benmixmaster » Wed Feb 22, 2012 4:21 am

Yes Alan I can still get at this vehicle, on different days.
I would shure like to be able to pin point this.
I have the 4423 automotive scope.
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Re: Lifter knock, How can I id which one?

Postby PeterF » Fri Feb 24, 2012 8:38 am

Hi,
I thought I had better clarify the situation with the TA095 accelerometer and our scopes. The TA095 is an IEPE accelerometer and, as such, requires a few mA of constant current supply to function correctly. Our 4224 IEPE scope has the provision to supply this to the accelerometer from within the scope, down the lead of the TA095. The supply is turned ON when "Accelerometer" is selected in the AC/DC selector menu. The standard 4424 or 4423 scopes do not have this supply available and the only way to power the TA095 is to have an external supply. You will require a "Break-in" box and 24V power supply. We do not sell any but an example is here which explains the principle:-
http://www.mmf.de/manual/m28mane.pdf
You could use that or make your own. You may get some form of output from an IEPE accelerometer without any supplied power but it certainly will not be the correct value. You could also use an un-amplified Piezo accelerometer but the output and frequency response will be worse.
Regards,
PeterF.
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