anyone know why this happen to my piston

[navz]

hi guys,anyone know why this happen to my piston ?

 

[Lean]

What type of car are you using? Model and so on, what's the phenomenon that happened to your car? I can see from the pic that there's a crack on the Piston.

From my knowledge and experience, it might be caused by a heavy usage on the vehicle or there might be a water entering the engine itself. Besides that, there's also friction against on the side of the piston as u noticed it.

 

[navz]

its a bolt on viva.. piston oversize 73mm..

 

[zmays]

seems like similar as page below

http://www.zerotohundred.com/newforums/toyota/393465-piston-damage.html

 

[navz]

its not really the same..mine broken at head/crown area..that toyata broke at the ring land..

 

[xtremeleo]

over temperature? lean mixture? too aggressive ignition? by the looks of it, iam guessing all, lol

 

[^pomen_GTR^]

yeah..pinging,knocking,comp too high,ignition too aggressive,petrol ron not compatible,overheated all those leads to that damage

 

[navz]

ic..tq for the feed back..

 

[AD_EG]

nasty...all of the above.

what ron do u use bro?

 

[virus-v6]

maybe lack of petrol feed!!did u change ur injectors for higher cc??