yes thats my opinion to, but why use a 600 grit than and wd40? With that kind of combination you are almost polishing the cilindre. So it doesnt get rough this way..
ok nice theory, but still the quest is, why not use a grit like 120? If there is piston deposit it looks to me that that is caught in the old hone tracks, and you want fresh hone tracks for lubrication.
If your trying to remove aluminum from the nikasil can you use hydrocloric acid? I know you can use the acid on cast iron to remove alum safely, been doing that for years ,I am not sure how the acid will react with nikasil ,anyone know?
Sorry I just checked what I had it's muriatic, and if you search muriatic it also pulls up hydrochloric, I forget , my friends a chemist and explained it all to me before, but he was talkin about acids and bases and blah blah ,I just remember you neutralize it with lots of water and never get in on you or breath the fumes, IT BURNS ;(It should be ok to use acid on nikasil, but I've read about using sulphuric acid to remove aluminum from the bore, not hydrocloric. I am not a chemist so maybe both will work.
If your trying to remove aluminum from the nikasil can you use hydrocloric acid? I know you can use the acid on cast iron to remove alum safely, been doing that for years ,I am not sure how the acid will react with nikasil ,anyone know?
Before everyone makes a left turn and decides this is the "new" best way to do things think for a second. What is the material that we plate with Nikisil in the first place? So we are going to use acid that will eat aluminum to clean the bore of a Nikisil plated Aluminum cylinder?
What happens when the acid weakens the aluminum around the edges of the ports and the plating flakes or peels?
Before everyone makes a left turn and decides this is the "new" best way to do things think for a second. What is the material that we plate with Nikisil in the first place? So we are going to use acid that will eat aluminum to clean the bore of a Nikisil plated Aluminum cylinder?
What happens when the acid weakens the aluminum around the edges of the ports and the plating flakes or peels?
Yes, care must be taken, I usually brush it on and keep going till I am satisfied, you can use grease to protect any area's you dont want damaged, I am just not sure how it will affect the coating,that's why I ask if anybody,has/had used acid beforeI think it can be done if done carefully, you won't just dip the cylinder into the acid won't you
You have to be very very carefull with that stuff anyway, even fumes can burn skin/glove/clothes.