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View Full Version : cleaning zorst valves ?


schakal
13-10-2009, 23:43
any tried and tested easy methods out there ?
ideally would like to soak it in something that will eat through
the carbon and allow me to wipe off . REDEX ??
Justin..
13-10-2009, 23:52
tried petrol?
schakal
13-10-2009, 23:58
tried petrol?

no but tried uncle bens hot curry sauce ,it does NOT work !!!!
hence i need a "tried & tested" method :D
Justin..
13-10-2009, 23:58
:roll: tit
schakal
14-10-2009, 00:05
:roll: tit


:P
16v_paddy
14-10-2009, 01:08
I've heard from some people into hondas & they use sand to port & polish the valves while the engine is running :P
Wobba
14-10-2009, 13:43
I've heard from some people into hondas & they use sand to port & polish the valves while the engine is running :P

Lol....DONT try it.

Cant you just use a traditional valve cleaning tool from Halfords, costs about £1.50.
busterhymes
14-10-2009, 13:57
bucket of hot water and caustic soda works a treat get your marigolds on mind :)
sideways danny
14-10-2009, 14:34
rotary wire brush is the normal method
schakal
14-10-2009, 15:54
rotary wire brush is the normal method

thanks mate :)
that would not damage the valves right ?
sideways danny
14-10-2009, 16:02
shouldn't at all if you're sensible. If you used excessive force you might have issues, but i've done hundreds and hundreds like that
busterhymes
14-10-2009, 16:04
no m8 it wouldn't valve material is seriously hard no much chance of touching it with a rotary wire brush
schakal
14-10-2009, 16:16
cool ,me shall have a go :D
thanks guys


DAN , while you are here , could you tell me why some
of my valve stem seals seem to be sitting lower compared to
others ?? is this something that will fix itself once valves are fitted
with springs ,retainers etc .
cliokiz
14-10-2009, 19:07
I got all mine chemically dipped. Came back looking brand new
schakal
14-10-2009, 19:23
just done them :D :D

here is how my nasa spec valve cleaning system works ;

wrapped the end of the stems in masking tape only to avoid metal to
metal contact . stuck it in the drill than used a scotch pad with some
diesel on it and span the drill on the pad , literally 30 seconds of spinning
and the valves come out spangly .

now i am off to make some cardboard carbon shields for the valves .
hopefully these will prevent excessive carbon build up zorst valves
in the future :D :wink:
sideways danny
15-10-2009, 00:38
cool ,me shall have a go :D
thanks guys


DAN , while you are here , could you tell me why some
of my valve stem seals seem to be sitting lower compared to
others ?? is this something that will fix itself once valves are fitted
with springs ,retainers etc .

having a mind blank on what type of stem seal the F7 uses
stan
15-10-2009, 08:35
Maybe the guides have been re-fitted at a uneven heights?

Pop over for a coffee/biscuit sometime schaks...im missing your soleful smile :oops: xxx
schakal
15-10-2009, 21:55
Maybe the guides have been re-fitted at a uneven heights?

Pop over for a coffee/biscuit sometime schaks...im missing your soleful smile :oops: xxx

no the guides look like fitted same height .
are the stem seals a push fit ? if so is not there a stop on them as to
how further down they will go ?


yeah will pop in for a chat soon mate :D
stan
16-10-2009, 09:13
How are you fitting the stem seals?
schakal
16-10-2009, 09:43
How are you fitting the stem seals?

no idea , i have not even taken them out yet :P
stan
16-10-2009, 10:10
Ive got some stem seal removal pliers if you want to bring the head over to mine and remove them here, as without the pliers you will struggle.