Pistons trouble

1. Tim_1 Frequent Poster Joined: Apr 2007 Porthleven/Cornwall Posts: 601 corsa 1.2 Saxo VTR

   #1 16th August 2008, 18:51

   recently the cam belt snapped on my car at just under 7k rpm
   to make things worse all 16 valves are bent.
   
   even worse, im not sure if i should replace the pistons when rebuilding the engine. they have slight markings where they have hit the valves, but there are certanly no cracks or major dmg to the tops of the pistons.
   
   should i replace the pistons which where just standard or will they be ok?
   
   also if i should replace them ill most likly stick hi comps in so any recomendations are welcome
2. KamRacing Saxperience Addict Joined: Nov 2006 A farm shed in Aylesbury Posts: 14916 Corolla AE86 Peugeot 205 B18C (in bits)

   #2 16th August 2008, 19:00

   I would certainly replace them just to be 100% sure
3. user_14883 Infrequent Poster Joined: Mar 2007 Posts: 193

   #3 16th August 2008, 19:05

   done loads of cambelt failures at work tbh most of them touch the pistons and mark them but long as theres no high spots or cracks they will be fine. very rarely will people replace pistons in modern vehicles unless its for performance reasons or similar.
4. AlexBp West Midlands Joined: Dec 2007 West mids Posts: 23149 Supra,civic GL

   #4 16th August 2008, 19:07

   perfect oportinity for forgies tbh
5. RCD-Performance Established Member Joined: Dec 2007 Southampton Posts: 2278

   #5 17th August 2008, 01:02

   Forgies ftw.
   
   your half way there with the head off so why not