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Veestar

New Member

• Dec 20, 2015

• #1

Hi have been told it maybe worth me changing the valve stem oil seals on my 90 ,is it easier to take head of and do on the bench or can they be done on the engine .

 

jamesmartin

Well-Known Member

• Dec 20, 2015

• #2

why ? smoke on start up or other symtoms
as long as you have piston at tdc you can remove the collets and springs on that cylinder plus its corresponding cylinder ie 1 and 4 and 2 and 3, you can make or buy a lever for compressing the springs ,similar to this

 

L

lynall

Well-Known Member

Full Member

• Dec 21, 2015

• #3

Using a torch with the rocker cover off, you will most likely see the seals have worked their way up the valve stems, Ive seen a few like it now, even my spare head has 4 of the seals off their seats.

 

Blackburn

Well-Known Member

• Dec 21, 2015

• #4

I used one of these
http://www.ebay.co.uk/itm/BERGEN-UN...201886?hash=item1ea874215e:g:WGEAAOSwsFpWRf~G
But some spring clamp ones also available now
http://www.ebay.co.uk/sch/i.html?_o...kw=Valve+spring+compressor+"Overhead&_sacat=0
Every seal on my head was lifted from the seating used a socket to push new ones fully onto seating.

 

V

Veestar

New Member

• Dec 21, 2015

• #5

Hi
Thanks for all your advice im going to whip the rocker cover off at the weekend and have a look.
And thanks for links to tools