New way to use old tools!

Chris Diagnostician Commack, New York Posted   Latest   Edited  

A good friend of ours, Hans Jorgensen explains how he developed a testing strategy that can be used to accurately and efficiently identify an accessory pulley bearing noise. 

Sometimes, noises can be tricky to identify, especially if you are hearing impaired. Hans has developed a solution to this problem which we feel is a great idea. Thanks for watching!

Here is the video. Enjoy.

Thanks for watching.

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Dmitriy Analyst
Toronto, Ontario
Dmitriy
   

Perfect! And if anyone would like to see a few more videos from members and friends on giving new life to old tools: youtube​.​com/watch?v=Wk82Qg… (Next video: waveform at 5:40) youtu​.​be/p_vm__yMVgc?t…

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Anthony Technical Support Specialist
Kirkwood, Pennsylvania
Anthony
 

Hi Dmitriy: I like where Chris' head is at with that. I'm curious what he would get using the First Look and the stethoscope end. KIt kind of ties into his thoughts on using a scope for hydraulics. Guido

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Chris Diagnostician
Lansdale, Pennsylvania
Chris
 

Guido, I do have further progress on those fronts. Not ready for DN just yet, still more to do. If you want a preview, you can get ahold of me via email. …

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Hans Diagnostician
Salt Lake City, Utah
Hans
 

I've played around with a similar type piezo pickup with magnets glued on to them, and captured this more recently. These captures are of a 2013 VW TDI that has a common rail system. diag​.​net/file/f4lujtx0g… diag​.​net/file/f7aqe6mez… I can easily get to the injector both electrically and mechanically, so I tried it. You can easily see when the injector fires, it

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Chris Diagnostician
Lansdale, Pennsylvania
Chris
 

Hans, Excellent captures and analysis here. I am still playing with the testing myself. I do have some common rail captures and more coming. You are 100% that the amplitude of the signal increases the closer you get to the injector and depending on capture method the duration of the higher amplitude as well as comparing overall signal duration/decay leads to some telling information about

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Anthony Technical Support Specialist
Kirkwood, Pennsylvania
Anthony
 

Hi Hans: I'm curious what kind of signal you'll get with the MI074 pickup. Based upon what Chris showed, I think that you'll get a pattern. Whether or not it is usable,... You may have to play with the scaling. Note: I haven't tried this. Guido

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Joel Diagnostician
Soquel, California
Joel
 

Did you make those piezo electric tool if so dod you listing of items??

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Chris Diagnostician
Lansdale, Pennsylvania
Chris
   

Dmitriy, Although I'm honored to be mentioned in the same post as Ramon and Hans, my method is still experimental. I'm making lots of progress relatively quickly though. You know how to get ahold of me​ if you are interested to see the rough drafts.

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Pete Technician
Zephyrhills, Florida
Pete
 

This reminds me of the first time someone posted a fuel pump current ramp. THIS Is how we grow in our diagnostic capabilities and knowledge. One guy with an idea that shares that idea with others. I can see this testing method appearing in scope classes by the time VISION rolls around again! Keep it up, guys and gals!

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Jim Curriculum Developer
Frederick, Maryland
Jim
 

I love creative thinking. I have more to add later but for now please accept a couple pictures. The first is an original kit given to a shop owner I know by his brother. His brothers company built these and the year was 1994. The second picture is of a kit like I learned on in the … era.

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Hans Diagnostician
Salt Lake City, Utah
Hans
 

My coworker has a Blue Point ultrasonic detector that I've used the Pico park sensor wand to pick up it's little signal. It's pretty cool to use old tools with new tech!

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Jim Curriculum Developer
Frederick, Maryland
Jim
   

You can find the headphone adapter to BNC on line and even a Y so you can listen and scope simultaneously........... Edited to add....... Since this has the option of direct contact or across space it had lots of use. I would hear high resistance in plug wires. Could hear the difference between a plug firing in cylinder or externally down the boot. I could hear the corona when slowly closing

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Jim Curriculum Developer
Frederick, Maryland
Jim
 

Here is a link to the tool and NASA. The thing of beauty is what time has done with technology. The above tool is highly specialized and the adapters are tuned to provide duplicated results at an analytic level. (For a simple example) The last time I proceed a kit it was over $3K. One can now find a very capable unit that is one tenth that price. The current unit I am using is the INFiCON

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