Ive just fitted a b16a1 into my eg6 civic (the old b16a2 was v. high mileage)
Ive also fitted a turbo to it, it hasnt been mapped yet but it would idle and run fine below 4k rpm, but now it seems to be pressurising in the head?? it really struggles to start and when it does it runs really lumpy and stalls, also it has a constant high pressure of air coming out of the breather pipe (just behind/above the oil filler cap)

I think it mite be a sticky valve because i have recently changed the oil grade being used due to the turbo, im now running 5-50w instead of 15-40w.

Or it cud be piston/s ring/s leaking??

The engine was used and ran perfect before it was removed from the other car...

Any help would really help

 

sounds like you're having blow by issues. maybe try a catch can.

 

Sry to sound dumb, but what do u mean? blow by as in piston rings blowing by or valves not seating/sticking hense blowing by?

U mean a oil catch can?

 

here's an explanation of blow by:

https://www.honda-acura.net/forums/s...d.php?t=255857

and yes i meant oil catch can

 

Haha, yeh i just read that like two secs ago.

what are ringlands?

 

the part of the piston where the rings sit

 

Right ok thanks, i'll do a compression test and leak down tomorrow.