mani1128

07 zo6 got my engine back got a comp cam installed and got my heads done valves etc just in case motor sat for like 6 months got it running never drove yet just start it up here and there but noticed every time i start it , blueish black smoke comes out for few seconds thanks

vett_guy

You might want to look this over....they'll be a quiz on it tomorrow.

ErikR

* there'll

vett_guy

OMG...I know that......I'm an idiot! That is what happens when I get on the forums in a sleepy daze!

ErikR

LOL, all in good fun.

mani1128

anyone ever have this issue

PDsVettes

Ask Moe, he'll know.

PDsVettes

Usually blue smoke at startup is leaking valve seals. But it's fresh rebuild, so run it for a while and then worry about it.

Judgebull

Common occurance .... a slight amount of oil leaks down the intake valves when the engine is sitting for long periods of time. When you start the engine the oil is sucked off the intake valves and burned which is the smoke you are seeing during startups. It’s no big deal don’t worry about it unless it starts to get worse.