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hi all , i ran into a big issue now need you guys advise what could be the problem . I have white smoke coming out of my oil filler cap as well as my oil catch tank !!! , could it be worn piston ring or valve issue . My engine has being rebuilt and clock only 10000km only...

 
Rep Power: 811

white smoke usually means coolant is burning, which usually means blown headgasket.

 
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and why r u running a catch can?

 
Rep Power: 811

turbo? idk, the pcv system is already very efficient

 
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am running NA , compression is about 13 , stage 2 cam ,valve spring upgraded and fully ported head . Had broken the tensioner pulley twice , but did not hurt any of the engine component. Head gasket has being change lately . Water temp and oil temp all running around 80+ degree . I Still suspect the oil ring or valve seals. By the way any one manage to customize the tesioner pulley to make it dead rather then able to move.

 
Rep Power: 811

compression seems very high and could explain why the head gasket is blowing.

 
Rep Power: 0

maybe i will just strip the head and check on the gasket again ... gearbox do you think the rings are worn.