Piston problems

[De Dragon]

What is the most likely cause of a scorched piston in an Evo, or any car for that matter? Thanks.

[De Dragon]

I'm getting that a lube problem is the most likely cause. Can a lean condition also cause this?

[MISHI]

Yep...

[De Dragon]

Yep...

If the piston/rings have been changed,along with the oil pump and the injectors serviced,is the car still worthy of purchase? Or can a single scorched piston be a sign of other deeper problems?

[Silvermike]

need more history on the car.

If the car was runnign mods etc without as tune.... most likely it would have been the 23 counts of knock that would cause the car to drop the piston.

The worst that could happen is that u have a warped/ pitted head. assume 15-20k to fix.

On the other hand, it could be a lube problem if a too thin oil was used so it was not getting the proper pressure while running hard. This would be a more expensive fix.

... more info is needed to make a proper call.... but i would steer clear.

[De Dragon]

need more history on the car.

If the car was runnign mods etc without as tune.... most likely it would have been the 23 counts of knock that would cause the car to drop the piston.

The worst that could happen is that u have a warped/ pitted head. assume 15-20k to fix.

On the other hand, it could be a lube problem if a too thin oil was used so it was not getting the proper pressure while running hard. This would be a more expensive fix.

... more info is needed to make a proper call.... but i would steer clear.

Car was working fine. Owner noticed a slight misfiring,called mech and towed the car. When they realized what the problem was,they did the repairs I mentioned earlier. Car doesn't have any mods really,just some elctronics( turbo timer,Apex'i piggyback)

[MadCrix]

who di dthe repairs
based on that, have a chat with teh mechanic and see what he says

[3rdGen7]

I have FORGED pistons and rings so that will help avoid it.. or at least minimize the chance of it happening to you again..

Here's the ad is in the classified section ..

http://forums.trinituner.com/forums/vie ... t=#3538884

I'll let them go for a sweet-deal price.

[3rdGen7]

bumpity bump