broken valve spring = new motor

[KungFuHamster]

Originally Posted by thunderwagen

Man I'm so frustrated with this situation. If they end up screwing me I think I'm going to pull that thing out an drop in a stroker. I didn't want to spend that kind of money on this car yet because I'm building a race car right now, but I don't want some half ass rebuilt motor in there.

typical GM. bullshit like that is why i crossed over to the "darkside" years ago.

[STRIKE ZONE]

New long block with no problem, had only 221 miles and not driven hard, cylinder was damaged beyond repair, obviously just some sought of uncommon factory defect.

[thunderwagen]

I have argued with everyone I know to argue with an they are still just going to replace the one piston. This is such bull shit.

[caverman]

Did you talk to GM Customer Service yet?

[Dave2SSRS]

I would NOT settle for that.

Ask them who your Lawyers need to contact. That will get them going!!

[agkelly73]

Yes, call GM Customer service directly. I opened a dispute with them before with my wifes car after a part a dealer installed went bad for a second time for bad installation. They wanted to charge us for the repair even though it was due to negligence on another Chevy dealer's fault. Anyway, I called and opened a "case" with them. I didn't get the full amount covered but we did get a nice hefty discount. I think it is total BS they aren't covering you and want to do a half a$$ job of fixing the issue. As someone else said, there's no telling what else may have been done. Not to mention the fact that your cat was glowing red. I'd have them check all that as well.

[thunderwagen]

I have talked to the area and regional reps over warranty claims. GM customer service and a supervisor at GM customer service. They all just keep saying this is sop for This type of damage. I have argued that the cylinder wont have the same compression as the other 7 and that the crosshatch has been worn down by the first set of rings. That I will have a loss of performance. That there could be possible damage to the crank an rods that would have to be checked by a machine shop. That the new piston wont be balanced with the rest of the rotating assembly.

They just keep saying it will be within GM specs and wont have any loss of performance or issues, and that if I continue to have problems that they will look into replacing the motor but not util I continue to have problems. Its such bull shit. The most cost effective way to fix something damn sure isn't the right way to fix things. I hope that thing blows up as I drive it off the lot.

I don't know what else to do to fight it. They basically told me to pound sand. The new GM customer service sucks ass that's all I know. I have owned 6 different GM vehicles in the last ten years and currently own 3 and this is the support I get.

[caverman]

Well....like you said....drive it hard right off the bat. Maybe even take to ADM or someone to have it dynoed not long after you get it to make sure the HP falls close to what others are seeing.

[thunderwagen]

It dynoed 390 a couple months before it broke. I plan on redynoing it and I'm going to Tell the dealer I want a compression test run on all the cylinders before I will pick it up.

[Stay Marine]

PM FBODFATHER (Scott Settlemire) for his advice

[n2oSS]

Look let them fix the one cylinder then go run the hell out of it and blow it up. Like they said if it happens again then they'll look at replacing the engine.

BTW learn the art of PR. GM really doesn't care about the lawyer talk cuase most the time its a bluff from the customer and if you do get one they'll just bury you in paperwork and it would cost ya more in the long run (unless ya win).

Next time you talk to em be calm and direct and explain to them how you will take pictures and write down conversations ect and hand them to a few magazines and news papers, ect. Trust me with the cheaper 5.0 out they don't want bad publicity of this magnitude.

[KungFuHamster]

this sucks dude. but doesnt surprise me. perhaps you should come to the dark side...all are welcome

ps
swapping in a random piston into a rotating assembly...without balancing?

[rayhawk]

Originally Posted by KungFuHamster

this sucks dude. but doesnt surprise me. perhaps you should come to the dark side...all are welcome

ps
swapping in a random piston into a rotating assembly...without balancing?

Do you really think they make all the pistons weigh the same on a production engine?

[KungFuHamster]

Originally Posted by rayhawk

Do you really think they make all the pistons weigh the same on a production engine?

i would assume there was some kind of balancing of the stock rotating assembly, yes.

edit: Though all engines are balanced from the factory (some to a better degree than others), the original balance is lost when the pistons, connecting rods or crankshaft are replaced or interchanged with those from other engines. The factory balance job is based on the reciprocating weight of the OE pistons and rods. If any replacements or substitutions are made, there’s no guarantee the new or reconditioned parts will match the weights of the original parts closely enough to retain the original balance. Most aftermarket replacement parts are "balanced" to the average weight of the OEM parts, which may or may not be close enough to maintain a reasonable degree of balance inside the engine. Aftermarket crank kits are even worse and can vary considerably because of variations within engine families.

taken from this site: http://www.rpmmachine.com/engine-balancing.shtml