am over hauling an M20 head and the exhaust values are caked in thick carbon.
whats the best way to remove this - valves are out of the head btw.
any input would be most welcome.
Thanks
Gary
exhaust valves
Moderator: martauto
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aimlessrock
- E30 Zone Squatter
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- Location: Manchester
E30 320i Convertible (1989)
190 Mercedes (1988)
"there is nothing more expensive than a cheap E30"
190 Mercedes (1988)
"there is nothing more expensive than a cheap E30"
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drakesmith
- E30 Zone Newbie
- Posts: 180
- Joined: Sat Nov 05, 2016 11:00 pm
- Location: London
Wire wheel on a power drill in a vice.
I found the cone shaped wire more effective what ever way it will get the carbon off without damaging the valves as the valves are a harder metal.
I found the cone shaped wire more effective what ever way it will get the carbon off without damaging the valves as the valves are a harder metal.
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aimlessrock
- E30 Zone Squatter
- Posts: 1821
- Joined: Sun Dec 06, 2009 11:00 pm
- Location: Manchester
Had considered something like this but was worried it would be to aggressive and damage the valve...drakesmith wrote:Wire wheel on a power drill in a vice.
I found the cone shaped wire more effective what ever way it will get the carbon off without damaging the valves as the valves are a harder metal.
E30 320i Convertible (1989)
190 Mercedes (1988)
"there is nothing more expensive than a cheap E30"
190 Mercedes (1988)
"there is nothing more expensive than a cheap E30"
-
drakesmith
- E30 Zone Newbie
- Posts: 180
- Joined: Sat Nov 05, 2016 11:00 pm
- Location: London
No way the vavles are hard steel. It wouldn't even put a scratch on them.aimlessrock wrote:Had considered something like this but was worried it would be to aggressive and damage the valve...drakesmith wrote:Wire wheel on a power drill in a vice.
I found the cone shaped wire more effective what ever way it will get the carbon off without damaging the valves as the valves are a harder metal.