Valve stem oil seals

[clawsk]

My gsi engine is smoking like a bastard when i rev it past about 4000 and when i pull away and nail it loads of smoke pours out the back. When just driving along every now and then or when changing gear a puff of blue smoke comes out. Today my mate took it to the limiter and a load of black smoke came out then he reved it as it was reving down and a big flame spat out!
Is this the valve stem oil seals? How easy are they to change?
Any advice will be greatly appreciated
Cheers

[mikeyredtop]

ive never had mine go, but they do. do a comprssion check, could be ur rings, oil scrapers or both!

[Stuart]

if you get blue smoke on the "run down" or down shifting then it will be the seals.

its a head off job, unless you have a few trick tools lol