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My '01 Z06 that I run on the track often has non-ferrous metal in the filter. My mechanic suggest switching from 5-30 to 15-50 to minimize further wear on bearings. I just replaced the sprigs, now I'm wondering how much life the engine has.
I'm going to do a few more runs on the track and have another look...
I thought it was important to have no more that 10W as the first number of the oil viscosity because of the close tolerances in these engines and the issues at startup. Maybe try 5W/40?
I thought it was important to have no more that 10W as the first number of the oil viscosity because of the close tolerances in these engines and the issues at startup. Maybe try 5W/40?
A track member who is a Corvette tech and runs the same car model as mine also suggested the 15 50. The car is also a daily driver, and the temps are getting cooler...
Any one else out there has experienced such a situation?
My '01 Z06 that I run on the track often has non-ferrous metal in the filter. My mechanic suggest switching from 5-30 to 15-50 to minimize further wear on bearings. I just replaced the sprigs, now I'm wondering how much life the engine has.
I'm going to do a few more runs on the track and have another look...
I've never seen chunks like that in a healthy engine. How does the drained oil look itself? Any sheen?
If there's large amounts of metal in the oil then there would be a "sheen" in the oil. It looks like glitter. You'll see it in the oil when you put a light to it.
Get an oil analysis. They'll tell you if your bearings are healthy. Your engine could have just swallowed something and spit it out. It's not good either way but doesn't necessarily mean the engine is fucked.
Those pieces look thicker than the coating on a bearing. I suspect something else might have gone through the oil pump and into the filter. Did you find this after the valve spring change? Did you also change the valve seals? The worst time to do an oil analysis is after the motor has been opened for some work. Got this from Terry Dyson of Dyson analysis. I would run another oil change and then check the filter again prior to do an oil analysis or you may get a lot of false indicators. Otherwise, let Terry do it and he can provide a more detailed analysis than Blackstone will.
Last edited by vettenuts; Sep 12, 2017 at 07:11 AM.
Did you find this after the valve spring change? Did you also change the valve seals? The worst time to do an oil analysis is after the motor has been opened for some work.
Good point! The springs, valve cover gaskets and pushrods were changed. I'm not sure if the tech ran the engine after the work then changed the oil filter. I'll find out.
I'll be running the car on the track and do a few oil changes to see if this is a one time thing.
TGO is giving good advice, take your pan full of oil get some light on it youll see right away if theres a lot of glitter. A random small piece of ? Wouldnt worry about too much funny as it sounds.
TGO is giving good advice, take your pan full of oil get some light on it youll see right away if theres a lot of glitter. A random small piece of ? Wouldnt worry about too much funny as it sounds.
The bits were peppered all over the filter. The oil was checked prior to engine work. Dang....
My tech thinks I need to switch to a heavier oil to prevent further wear and hopefully save the engine...
Metal in oil filter
