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Old 05-16-2003, 12:57 AM   #21 (permalink)
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haha. it's fine. is you're a non turbo? Is that why yours are bigger?
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Old 05-16-2003, 01:00 AM   #22 (permalink)
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Quote:
Originally posted by newfoundglory
haha. it's fine. is you're a non turbo? Is that why yours are bigger?
yes, non turbo.. by the way, i have been through 2 timing belt mishaps, both times bending valves, and dont have any damage to my pistons... well, none that i can see....

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Old 05-17-2003, 08:02 AM   #23 (permalink)
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Three is literally no chance a valve could actually do damage to the piston other than the small score/scratch marks you can see in that pick (no I am not talking about the valve clearance indentations) you can see the spots where the valve actually made contact. Re use them.
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Old 05-17-2003, 10:23 AM   #24 (permalink)
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Eric,

Not knowing the mileage or prior condition of the engine (compression, leakdown, etc.) and assuming it was in reasonable condition you probably can get away with using the pistons. If you had the money, I would suggest a replacement short block. Some of the risks you are taking include a weakened piston, possible pinched top ring land on piston, and scuffed rod bearings. Since you are willing to take that risk. I suggest you get the heads repaired including new valves and valve stem seals. I would then get the top half of the motor together with the new timing belt and do a compression test before you complete the assembly. If you get some abnormal compressions you will have to start over. Good Luck.
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Old 05-17-2003, 11:14 AM   #25 (permalink)
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So you don't think that the small score/scratch would make these "hot spots" like people have been saying. That is very reassuring for me, I really am tight on money, and I picked up rebuilt heads today. Thank you ALL for your input!
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Old 05-17-2003, 11:51 AM   #26 (permalink)
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Quote:
Originally posted by newfoundglory
So you don't think that the small score/scratch would make these "hot spots" like people have been saying. That is very reassuring for me, I really am tight on money, and I picked up rebuilt heads today. Thank you ALL for your input!
what did you end up paying? i paid $528, but i needed 16 valves and a few valve springs...

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Old 05-17-2003, 01:05 PM   #27 (permalink)
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Quote:
Originally posted by newfoundglory
So you don't think that the small score/scratch would make these "hot spots" like people have been saying.
To ensure you do not have any hot spots I would smooth out any dings in the piston with some sandpaper. Be careful to not get any abrasive material in the Cylinder bore.
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Old 05-17-2003, 01:18 PM   #28 (permalink)
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They aren't actually "rebuilt". I shouldn't have said that. I paid 125 bucks! YIPEEE! for some good shaped ones off of a friend of mines 3000gt. I had a local engine shop check them out real good and they shaved a layer off of it like people have said to have done.

Thanks again-
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Old 05-17-2003, 01:28 PM   #29 (permalink)
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I needed 12 on the front head, not sure about the rear, I never got it checked out at a shop, but on the front head you can SEE the damages. I'm sure all 24 are bent. Hell, the car wouldn't even turn over by hand b/c the valves were so bent...
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Old 05-17-2003, 01:51 PM   #30 (permalink)
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dude, if your not redoing the hole eng. just put the heads on and forget about it. i did a lot of broken belt jobs and never replaced pistons. no one ever came back. just replace the auto tensioner, idler pulleys, and w- pump. youll be fine.
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