Hello guys,
i have this problem with my engine. it consume A LOT of oil when it is high rev. about 1 quarts for every 10 mins of high rev around 6000rpm!!!
the symptoms:
1. all cylinders are oily when checked with borescope.
2. no blue smoke from tailpipe.
3. Just added an oil catch can. No oil caught after 30 mins run (missing 3 quarts oil!!)
4. this is a relatively new LS7 engine (about 1 year old)
5. valve seal changed recently.
6. compression test done. no issue. will perform leak down test soon.
I speculate that it is the PCV issue. But i cannot explain why i do not catch any oil after missing 3 quarts and why it is no smoke at the tailpipe.
oil used is mobil 1 fully synthetic 5w50.
Running out of idea. Anybody can help?
i have this problem with my engine. it consume A LOT of oil when it is high rev. about 1 quarts for every 10 mins of high rev around 6000rpm!!!
the symptoms:
1. all cylinders are oily when checked with borescope.
2. no blue smoke from tailpipe.
3. Just added an oil catch can. No oil caught after 30 mins run (missing 3 quarts oil!!)
4. this is a relatively new LS7 engine (about 1 year old)
5. valve seal changed recently.
6. compression test done. no issue. will perform leak down test soon.
I speculate that it is the PCV issue. But i cannot explain why i do not catch any oil after missing 3 quarts and why it is no smoke at the tailpipe.
oil used is mobil 1 fully synthetic 5w50.
Running out of idea. Anybody can help?