Smoke from VC and Turbo no bueno
#21
Boost Czar
![](/mt2011/images_td/ranks/supporter1.gif)
![](/mt2011/images_td/ranks/admin.png)
iTrader: (62)
Join Date: May 2005
Location: Chantilly, VA
Posts: 79,607
Total Cats: 4,102
![Default](https://www.miataturbo.net/images/icons/icon1.gif)
I've had pistons that looked perfect on the top, smoked like that, but resulted in this:
![](https://www.miataturbo.net/attachments/engine-performance-56/73381-smoke-vc-turbo-no-bueno-pistons.jpg?dateline=1365862851)
I've had others that looked perfect even after removing, but it was obvious the rings were no longer sealing.
your #4 looks bad; it looks like it's not seated evenly and rubbing in the 5 'o clock position of the photo.
on #3; looks like maybe some failure at the 10-11 o clock position on the edge of the piston...possibly melted a little.
I cant tell if it's just grim on the head pics, but all 4 look to have det on the squish area.
![](https://www.miataturbo.net/attachments/engine-performance-56/73381-smoke-vc-turbo-no-bueno-pistons.jpg?dateline=1365862851)
I've had others that looked perfect even after removing, but it was obvious the rings were no longer sealing.
your #4 looks bad; it looks like it's not seated evenly and rubbing in the 5 'o clock position of the photo.
on #3; looks like maybe some failure at the 10-11 o clock position on the edge of the piston...possibly melted a little.
I cant tell if it's just grim on the head pics, but all 4 look to have det on the squish area.
Thread
Thread Starter
Forum
Replies
Last Post