View Full Version : 2JZ-GE Piston messed up?

07-12-2013, 03:13 PM
Hey everyone, as you may know I have a 2JZ-GE I'm building, and I was cleaning and scrubbing the pistons (Nothing that would hurt them) and I noticed these gouges and chips all over the top of piston number 5.
I'm guessing something must have gotten in the cylinder but the cylinder wall isn't scratched or anything, I haven't yet checked the valves to see what they look like, but it's only piston 5. It appears to still be usable but I wanted a second opinion, and maybe someone has an idea of what happened?

It seems like the more I clean this engine the more is messed up under all the grime :shifty

<a href="http://www.flickr.com/photos/77639048@N07/9269164859/" title="2JZPiston#5-3 by Rinku-Bitch, on Flickr"><img src="http://farm4.staticflickr.com/3776/9269164859_c3c1596fb5.jpg" width="500" height="374" alt="2JZPiston#5-3"></a>

<a href="http://www.flickr.com/photos/77639048@N07/9269166331/" title="2JZPiston#5-2 by Rinku-Bitch, on Flickr"><img src="http://farm4.staticflickr.com/3713/9269166331_720b9bef2a.jpg" width="374" height="500" alt="2JZPiston#5-2"></a>

<a href="http://www.flickr.com/photos/77639048@N07/9271949120/" title="2JZPiston#5-1 by Rinku-Bitch, on Flickr"><img src="http://farm3.staticflickr.com/2878/9271949120_e70a18065c.jpg" width="374" height="500" alt="2JZPiston#5-1"></a>

Thanks in advance!

07-12-2013, 03:52 PM
Almost looks like #5 went lean and detonated.

07-18-2013, 08:04 AM
time for forged pistons