We are having a problem we replace the head and.

Tiny
ANONYMOUS
  • 1997 PONTIAC GRAND AM
  • 168,000 MILES

We are having a problem we replace the head and pistons and now the head has 2broke pistons and a dent in the head this is the second head, the first one was the pistons on 4 was broke in half and had to replace the pistons with rings. So please help us why this is happening the cam shalf was replace last year with a new one.

Friday, March 22nd, 2013 AT 7:06 PM

1 Reply

Tiny
MHPAUTOS
  • EXPERT
  • 31,032 POSTS

It sound as if the valve timing is wrong, to repair this there is just far to much information that will have to be typed here, I would be at it all day, I would go get a work shop manual or look to see if there is one at a local library, this will give you all the info and plenty of pics to assist you with the major engine re build.

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Friday, March 22nd, 2013 AT 10:13 PM

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