A build up a white residue is usually due to a motor being ran too lean but as you can see in the pics only the exhaust valves are white where as the intakes are black with carbon. When i analyzed it, it was basically a lead compound. Now.it may mean nothing, since the current unleaded fuels and additives have screwed up the burn patterns.leave all kinds of deposits.
25/11/2021 · thick white smoke from exhaust suggests that coolant or water has inadvertently entered the combustion chamber, which they should never. Or it could mean the engine is running lean, but you have to look at other things too. Outer φ43mm, hole φ33mm, rubber size: I use miller's octane booster / lead replacement additive which seems to leave brown deposits on exhaust valves and sparking plugs. Which comes from burning the carbon in the cylinders on the valves.you get it hot enough and you'll find an ash residue is left behind. 08/09/2010 · the inner cylinder valves look normal, a slightly black coating. Now.it may mean nothing, since the current unleaded fuels and additives have screwed up the burn patterns.leave all kinds of deposits. Pp + environmental protection rubber. A build up a white residue is usually due to a motor being ran too lean but as you can see in the pics only the exhaust valves are white where as the intakes are black with carbon. My guess is your friend had a bad case of run on or dieseling.
18/02/2003 · your pic is kind of blurry so its hard to tell, but the cylinder with the white valve is probably the normal one and the rest of them have been burning a lot of oil.
Or it could mean the engine is running lean, but you have to look at other things too. Pp + environmental protection rubber. Which comes from burning the carbon in the cylinders on the valves.you get it hot enough and you'll find an ash residue is left behind. Most modern, fuel injected engines run very clean and the valves usually are close to the color in that one cylinder. When i analyzed it, it was basically a lead compound.
White Exhaust Valves
Pictures. 13/03/2001 · the white stuff is ash. Exhaust valve allows easy breathing and reduces heat, moisture and fogging. And these were on …
Most modern, fuel injected engines run very clean and the valves usually are close to the color in that one cylinder. Pp + environmental protection rubber. 13/03/2001 · the white stuff is ash.
And these were on … Pp + environmental protection rubber. Also here is a shot of the inside of the head pipes, same deal, outer two are white to gray.
My guess is your friend had a bad case of run on or dieseling.
Or it could mean the engine is running lean, but you have to look at other things too.
Outer φ43mm, hole φ33mm, rubber size: A build up a white residue is usually due to a motor being ran too lean but as you can see in the pics only the exhaust valves are white where as the intakes are black with carbon. My guess is your friend had a bad case of run on or dieseling. Also here is a shot of the inside of the head pipes, same deal, outer two are white to gray.
Exhaust valve allows easy breathing and reduces heat, moisture and fogging.
18/02/2003 · your pic is kind of blurry so its hard to tell, but the cylinder with the white valve is probably the normal one and the rest of them have been burning a lot of oil.
I'm sure the valves haven't …
