If it doesn't matter, why does Honda say to go at least 6 revolutions? Because it does matter. Didn't you notice that with each compression stroke, the pressure went a bit higher?
It matters but only to a certain degree, we aren't making calculations to send this into space so we just need to be in the ballpark. If you want to compare the test numbers to spec numbers, then it is best to do the test as service info indicates in my opinion. What is more important is to do the same number for each cylinder.
@@sivucit Of course. So, you don't need to go to 10 cycles. You just need to do enough that the pressure reading doesn't go higher with each cycle. Also, you should do the same number of cycles for each cylinder so you can compare them fairly.
Much appreciation for the video. I gotta do a comp test I have blue smoke when revving above 3.5k, and every 1k miles I'm out of oil with no leak under honda. 97 lx 5 speed. Also replaced pcv valve hopefully made a difference old one wouldn't close
Yes, although the chances are pretty low it is possible. Typically I like to remove them when the engine is cold but in this case it is necessary to do the testing. If possible, I will remove them beforehand when the engine is cold and then reinstall for the test to lessen the chance of an issue (in this case they had just been removed when I did the timing belt).
Appareciate the video man. What would be the point of having the throttle wide open if the injectors were already unplugged? Also, how can I control the number of cranks in a car that has a push start button instead of a key?
So it doesn't build pressure/vacuum inside throttle area (so engine can breathe fully). A push to start can sometimes be stopped by hitting the button again but it is usually completely computer controlled and should crank the same number of times for each press. As long as it cranks the same each time the test should be valid.
