Honda Civic Compression Testing

[@BigDog50001]

*Parts and Tools Linked in Description* Be sure to subscribe for more tool and car repair videos! kzbin.info

[@TheDisgruntledMechanic]

Just can't kill them old Honda engines! Thanks Dave.

[@BigDog50001]

It's pretty hard to but they certainly tried to get this one lol, thanks for the comment Mike!

[@hugocruz5551]

Thanks Big D. You’re a great mechanic.

[@BigDog50001]

I appreciate the comment, thank you!

[@randyvickery709]

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

[@gto3370]

Great video.

[@BigDog50001]

Thanks!

[@HotRod-wv4vm]

Thanks for the video

[@BigDog50001]

You bet!

[@michaelsilva1129]

Parabéns pelo canal sou do brasil e alguns serviços eu mesmo faço no meu honda

[@BigDog50001]

👍

[@themechanic6117]

Decent numbers, that honda has plenty of life left in it

[@BigDog50001]

For sale! Runs great and well maintained! lol

[@GoodBoy-zx6zb]

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?

[@BigDog50001]

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.

[@NextLevelAutoDiagnosticsLLC]

Would removing/installing spark plugs from a hot aluminum cylinder head strip the threads?

[@BigDog50001]

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).

[@sivucit]

Hi i thoughy number of revolutions doesnt matter for compression testing because other storkes except compression will not have pressure.

[@markanderson2904]

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?

[@sivucit]

@@markanderson2904 even if you go to 10 cycles it won’t go beyond 160 to 170 did you notice that. ?

[@BigDog50001]

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.

[@markanderson2904]

@@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.

[@cesarportillo1583]

How were you going to have spark if you removed the coils anyways ?

[@muddrock]

if the plug wires were close enough to a grounded piece of the engine, I think so.

[@meatballmagoo6134]

1998 Honda Civic 💣

[@BigDog50001]

Thanks for the comment!

[@wilmarbarrick3194]

Tesla makes bulletproof doors... Honda makes bulletproof engines.

[@BigDog50001]

Honda used to at least, thanks for the comment!

[@sidogpmj]

Dawg... I think you have valve tick xD