Compression Test

[alacran1]

I did a compression test on my engine and my numbers are as follows:

1) 150
2) 150
3) 150
4) 125 :icon_mad:
5) 140
6) 145

I looked down on my pistons and they all were black number 4 was not as cleaner as the others, so coolant is not going there, right? Can it be a misaligned valve?

 

[hvyman]

Could be valves rings or hg. A leak down test would tell you what it is.

 

[Ralmanzarjr]

Could be your piston rings too.


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[alacran1]

No it was the o-ring around the compression hose was cracked, i replaced it and it gave me these numbers...

 

[alacran1]

btw, it was a Cressida,, i crashed the car couple weeks ago because some guy brake checked me in the freeway, so i preferred to hit the guardrail than the guy. The whole front suspension was destroyed, you can see how far forward the wheel is, so i just gave it up.

The car before and after: