Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum - View Single Post - Piston detonation. Chance of getting fixed?

Nissanguy2014 · 12-01-2014, 09:56 PM

the best thing i could say is to polish the shit out of them to get rid of the sharp edges from the detonation...it will help get rid of the hot-spots and help it from cracking, no guarentee though..suggest pulling it out to do that but i understand how much work that is...going that far u may as well replace it. + u DO not want to get any grit/paper on the cylinder walls...put that piston on TDC and give it some loving...do not polish around the edges of the piston...from time to time feel the indentions with ur fingers. continue to where they are smooth and not "scratchy/edgy" to the touch...do not try to remove them completely it will remove too much material, ur just getting rid of the rough edges and lightly smoothing it out from the detonation
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IM not responsible for any damages after and/or during:

12-01-2014, 09:56 PM	#2
Nissanguy2014 Join Date: Dec 2014 Location: Virginia Age: 34 Posts: 3 Trader Rating: (0)	the best thing i could say is to polish the shit out of them to get rid of the sharp edges from the detonation...it will help get rid of the hot-spots and help it from cracking, no guarentee though..suggest pulling it out to do that but i understand how much work that is...going that far u may as well replace it. + u DO not want to get any grit/paper on the cylinder walls...put that piston on TDC and give it some loving...do not polish around the edges of the piston...from time to time feel the indentions with ur fingers. continue to where they are smooth and not "scratchy/edgy" to the touch...do not try to remove them completely it will remove too much material, ur just getting rid of the rough edges and lightly smoothing it out from the detonation . IM not responsible for any damages after and/or during: Last edited by Nissanguy2014; 12-01-2014 at 09:57 PM.. Reason: blah