[JD323]

Hello all! We rescued an 06 Magnum R/T AWD with a dropped valve seat a couple weeks ago. It's gonna be my 14 yo son's first car. We pulled the head this last weekend, and I would like some opinions on whether or not the piston will need to be replaced. It's got a pretty good stamp as seen in the pic, but it doesn't appear to be cracked at all. I'll clean the high spots off and see how deep it looks then, but I'm gonna say it's all of 30-35 thou deep. I put a caliper on it and I consistently got 0.026 as the lowest point with the square caliper end. If it needs to be replaced, can we do this in the car being that it's AWD, or does it need to come out?

Also, I included a pic of the head, I'm assuming that is now a good practice piece for learning to port 😎, and not worth repairing?

?

 

[JD323]

 

[Hemihackman]

That's all the damage? Are both heads off? I think if that's all -you could get away with it. The AWD pan is very difficult to remove.

 

[JD323]

That's all the damage? Are both heads off? I think if that's all -you could get away with it. The AWD pan is very difficult to remove.

Yep, surprising but that's it! She must've shut it down immediately when it didn't sound right cause it doesn't even look like there was that many strikes. No, only pulled the one head, all seats in the other are intact.

 

[2005rtmag]

If it were me, I'd pull the other head too and get the seats fixed so they don't drop out. Otherwise, you may be doing this again. My 2 cents.

 

[JD323]

If it were me, I'd pull the other head too and get the seats fixed so they don't drop out. Otherwise, you may be doing this again. My 2 cents.

I think this is what we're ultimately gonna do. Just wanted to get the bad one off to see if the piston was damaged beyond use so we knew how far we had to go with it.

 

[Jim McVeigh]

No choice, replace the piston!!

 

[RobsSXT]

Absolute replacement. These pistons have coatings on them, then when compromised, threatens their longevity. If you don’t replace it, you are on borrowed time. In addition, where is the actual seat? You need to account for EVERY bit of metal.


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[DBL.DWN]

0.030”? I’ve ran pistons with that or a little worse. But idk what the deck thickness is on these pistons.
Could have them welded if you know a legit weldor.


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