Knowing When The Valve Stem Seals Need To Be Done

[davey205 7 1 Cars]

I have noticed recently that im getting quite a lot of white smoke, obviously with the cold weather it could be condensation but how would I know if the valve stem seals need replacing?

[Anthony 1,003]

Generally worn stem seals cause a puff of blue smoke on overrun, and when they get bad enough, constant blue smoke at idle.

 

Oil consumption will increase too, obviously, since the engine is now burning it.

[murtaghp 3]

White smoke could be condensation like you say or the start of head gasket failure.

 

My one (with a knackered head gasket) does not smoke on start up but smokes really bad when it heats up.

[matt.f 16]

When you first start it up look for blue smoke