overhaul 4 cylinder? please help

[miked]

kailangan muna dito compression test .

compression test can be done from battery readings ,no need to touch the engine . i use a picoscope equipment .this can also tests excessive engine blowby .

sir, care to explain the process and theory behind this one? a bit curious here.

[bambino]

sir, care to explain the process and theory behind this one? a bit curious here.

yes we don't need to touch the engine anymore by using this method and it doesn't matter if gas or diesel engines .

i have been using this method 5 years now and its highly accurate ,

through amp probe that comes with the picoscope equipment, it reads the draw from the battery that the tech will be able to analyze the outcome of the test .

indication that the engine is sound is when we get a uniform waveform display .

if one cylinder has no compression we get no waveform at a certain time . less wave form = low compression

if there is a bearing problem or any resistance from the engine , it shows an excessively high draw from the battery .

if you want to learn more about this technology, pls visit picoscope,com /automotive