150psi compression test - all 4 cylinders

[XcluziveAZN]

Is this normal?

i see some thread people have 175->190psi

is it because of different elevation?

[Supergenius]

Is this normal?

i see some thread people have 175->190psi

is it because of different elevation?

DID you crank the motor over with the throttle open?

If not do it again. 150 is not good at allllll.

[oyajicool]

The gauge could be inaccurate. I would be more worried if one of cylinder is way off than the rest.

Use the same gauge on many cars and see what kind of numbers you will get.

[XcluziveAZN]

OOP. I did not have the throttle open.

I will try it again

[Supergenius]

Use the same gauge on many cars and see what kind of numbers you will get.

wrong

Theres a MUCH easier way... guesses anyone?

[wed3k]

it's not about what the numbers are, it's about consistency. there's too many variables for exact numbers.

150 on all four is fine.

[MrSpeedy]

it's not about what the numbers are, it's about consistency. there's too many variables for exact numbers.

150 on all four is fine.

Wed3k is right. The consistency is the key but if you are worried about the "low" psi then Accord's compression is normal when it's between 9,3-12,3 bar (135-178psi). And i'm not saying that 190psi is not good but those are basicly the boundaries.

[XcluziveAZN]

Thank you for all the reply

I learn something new today

[oyajicool]

wrong

Theres a MUCH easier way... guesses anyone?

I am wondering what's wrong about my post.

I am sure there are other ways to certify the gauge set he is using. Like other posters say, to me, having 150 psi on all cylinders is not really the problem but one or two are off by more than 10% is something to think about.

[Supergenius]

it's not about what the numbers are, it's about consistency. there's too many variables for exact numbers.

150 on all four is fine.

Still... 150 indicates there is something really wrong. should be up around 180-185 id think. AND within 10 or so

[oyajicool]

I wonder what kind of numbers the OP will get with Wide Open Throttle.

[wed3k]

Still... 150 indicates there is something really wrong. should be up around 180-185 id think. AND within 10 or so

all gauges are different and there's too many variables including battery health and cranking amps.

[oyajicool]

wrong

Theres a MUCH easier way... guesses anyone?

So, what is easier way?

[wherm]

I've also been told to test compression when your engine has been brought up to operating temp. This allows for proper expansion of rings etc.

Maybe it doesn't matter all that much, but that's how I do it.

[oyajicool]

I've also been told to test compression when your engine has been brought up to operating temp. This allows for proper expansion of rings etc.

Maybe it doesn't matter all that much, but that's how I do it.

That's how you should do, in my book.