4g63 n/t compression ratio's?

[buhay6]

I've looked back for past topics that cover a 4g63 n/t good compression/low compression ratio's and found nothing but answers for turbo'd 4g63's (very widely covered topic), I know they use different pistons so the compression ratio's are of course not going to be the same.

So here's my cylinder compression ratio's:
1 - 147psi (tranny side)
2 - 140psi
3 - 135psi
4 - 149psi (timing belt side)
Car doesn't seem to be burning coolant and its definitely not burning oil, plus it sounds like it runs strong. These numbers good or getting to the low side?
Finally got my parts from DSM grave yard i ordered over a month ago so I don't wanna waste them if I'm going to need a rebuild soon.

 

[rommel rojasgsx]

192standard
145 service limit
14 psi max difference between cylinder
1 word haynes.

 

[buhay6]

193 standard
145 service limit
14 psi max difference between cylinder
1 word haynes.

I dont have a haynes. So my engines basically toasted?

 

[russell3123]

They do seem low but i have seen lower and there still running ok. Did you do the compression check warm or cold?

 

[justa4clturbo]

Sounds like a rebuild is needed.

192standard
145 service limit
14 psi max difference between cylinder
1 word haynes.

I wouldn't own a dsm without a manual my factory books look black from all times I used when working on my car now its like the back of my hand

 

[buhay6]

turns out it forgot to push the throttle pedal down, and the engine was cold. I re did the test and it came back at

1- 156
2- 154
3- 127
4- 141

So with those revised numbers I'm actually thinking my head gaskets gone of the heads warped because I filled it with coolant and hadn't run it in litterly 3 weeks and the coolant levels not full anymore.

 

[luv2rallye]

You must do compression test with engine warm (close to operating temp as you can get it). Here's how it's done: How to do a Compression Test

 

[JusMX141]

Possible head gasket- likely valve seal issues. Do a leakdown test and get the head rebuilt before you assume the entire engine is bad.