oxides
Well-Known Member
I'm sure there are those that have a short cut method but the easiest way to change valve stem seals is to bite the bullet and take the head off. You'll need a valve spring compressor to tale the valve collets out, an egg tray is useful to keep all the bits in order. You can see if the valves need lapping in at the same time.
steve2286w
Well-Known Member
beg to differ
there is vacuum when inlet valve opens and air (and sometimes oil) is sucked in as piston goes down on induction stroke, it helps my servo too in stopping the landy!
good bit here on poor valve seals
Bad Valve Seals Symptoms | eHow UK
Vagrent
Yaaaar
Yes.
Oldseadog
Well-Known Member
Vagrent
Yaaaar
jamesmartin
Well-Known Member
what kind of smoke ,black ,white ,blue,greyish,stem seals will be worn but blue smoke would be more visible on start up ,engine if orignal will be worn in the bores /rings ,timing retarded a little with wear in timing chain etc,pistons and head are flat so if pistons at tdc you can remove collets etc as valve cant drop more than a mm,special lever tools are available for this or you can make your own ,glue rocker gasket(silicone can be used to do this or other form of adhesive) to rocker box and let dry before refiiting
if you do end up compressing the valves and removing the collets when it comes to refitting them use a small electrical screwdriver to apply LM grease to the valve groove, then stick the collet to the screwdriver with LM and transfer it from the screwdriver to the valve. much easier than messing about with a pair of needle nose.
