hi, i am from Bulgaria , ang my english is not so good . ok , i have crx 2 generation with d16a8 engine . i change Camshaft with zc , d13 piston with zc piston rot . and here is the problem ... my car burn for 800 km, 5 litre oil .... we open the engine again , we changed again all bearings , segment , rubbers ... grinding the head , and for 200 km 2 litre oil , help me

 

Is there one particular cylinder that looks worse than the others?

 

No , all cylinders are perfect

 

Well, your oil is going somewhere. If it's not leaking, then it's either:

- Blowing past your piston rings (are the rings gapped and orientated correctly?)
- Leaking into the cylinder past your valve seals (are they pinched, has the retaining spring fallen off? were they bored out?)
- Escaping through the head gasket into the combustion chamber. (Do you have oil mixing in your coolant? Have you compression tested the motor? Have you performed an exhaust gas sniffer test on your coolant?)

What diagnosing have you done so far?

 

everithing is ok, the compression is 16 .. is this to big ?