Relative Compression Test Using Low Budget Equipment
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- Опубліковано 6 вер 2024
- Oscilloscope used in the video : amzn.to/3aVGkXt
Today we going to try to do relative compression test with the Hantek oscilloscope ( the cheapest one possible , Hantek 6022be ) and Hantek amp clamp ( Hantek CC650 AC/DC Current Clamp ) . After that we going to compare the results with the manual gauge aka Bars vs Amps .
CRANK
Music :
Aliash - Sex, Drugs & Electronic by Outcast Records
/ aliash-sexdrugselectronic
If your oscilloscope software has a low pass filter feature, that would smooth out the noisy waveform. Also, you can put your data table in a spreadsheet, create an XY plot, and do a linear regression analysis. Ideally, the data would lie on a straight line.
it is accurate, but you have to count in the mechanical forces during cranking / momentum as you turning the whole engine and not just 1 cylinder. amps/compression of the previous cylinder will have effect of amps drawn by the next cylinder in firing order due to this momentum. That is why amps alone can not tell the exact compression.
This video is really helpful! You showed us easy way of how we can test second hand engine. Really great info!
The waveform is fine. It's starter curent. I've got on Pico the same noise doing relative compression test, and by watching others on internet, it is normal. And I just watch relation beetwen cylinders, I do not over analize the waveform. I use that test and if any cylinder is bad I use injection control or ignition signal to find which cylinder is bad... When I find the bad cylinder I use leak down to find what's wrong with it...
greetings.
Work smart not hard right :)
Boom you got it
amp kljamp?
You can try to do it also with HScope Android app...enjoy!
Informative video thank you for sharing 👍👍👍
Outstanding explanation! This video really helped my out! Good job!
Great explained. Thanks!
Wonderful
Good video!