[SD455DJ]

Originally Posted by Jay S

With 1.5 rocker arms, we have never used anything more than stock valve springs with that 204/214 cam.

X2

Dennis

[KJ223]

Got the engine assembled and fired up today, runs good. Cam survived the break in and idles good etc. One question though, there is blue smoke coming from the exhaust, is this normal due to working in the engine and should I expect it to clear up as I drive? No blow by and oil pressure is good with 25lbs according to the factory gauge, and 60lbs above 1000rpm.

[MarkS57]

Originally Posted by KJ223

Got the engine assembled and fired up today, runs good. Cam survived the break in and idles good etc. One question though, there is blue smoke coming from the exhaust, is this normal due to working in the engine and should I expect it to clear up as I drive? No blow by and oil pressure is good with 25lbs according to the factory gauge, and 60lbs above 1000rpm.

I've seen something similar but the engine was down 1 cylinder because an intake valve wasn't opening. Without the intake valve opening, the vacuum in the affected cylinder on the intake stoke would suck in oil by the piston rings. Possible not to notice the missing cylinder until you drive it maybe. In my case, the culprit was a broken rocker arm stud.