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Originally Posted by /Rock//It///M
Pardon the ignorance, as i've been searching and havent seen a definitive answer.
Is there a recommended mileage or age of the engine that the bearing should be changed.
And besides Blackstone testing. Is there anyway to tell if you need to change them. ??
Also once you (ACM) change then. When is the next interval to change them again ?
These questions would be for a stock motor. No blower
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Not a problem at all.
It is tough to say age or mileage for bearings. We've seen terrible bearings around 40k and clean bearings at 88k. Now mind you, the bearings at the higher mileage still had their wear on them, but they weren't terribly scored like we've seen others especially at that mileage. That customer now has a peace of mind knowing he's done. While there have been more documented cases with 08 models it really comes down to care for the vehicle. Proper allotted time for warming up before driving the car hard. Also clean oil is very important. We like to not go beyond 7,500 miles for these cars. If you find yourself driving the car very spiritedly or a track event or two then it's best to be done around 5,000 mile intervals. Bouncing off the rev limiter doing burnouts will also heighten your chances of doing damage as well.
Blackstone helps to keep an eye on what's going on. That is more for a personal baseline for yourself. The metallic breakdown relies heavily on how accurate you are in your information provided and it is based of off industry averages. By all means we suggest keeping an eye on it every oil change or every other to see any deviations in the readings, but we've seen good looking oil analysis then pulled bearings and they're pretty unevenly worn.
WPC treated bearings are built to last. We've pulled one set on a VT2-650 car after 25,000 miles and there was barely any wear at all on them. They looked so good the customer was inclined to put them back up in the car. Mind you this was on a car that was warmed up to temp before use and not driven on short trips. Every car and driver/driving style varies so it is tough to give you a definitive answer across the board for a bearing's lifespan, but with the WPC GTS coating, you won't have to worry about them in the back of your mind for a very, very long time.