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Old 11-20-2014, 01:28 AM   #1
aleros_eat_rice
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Crank scraper question

This came up in another thread. Searched and found no thread about it.

I know what a crank scraper does, reducing drag on the crank by disturbing the mass of oil spinning around it. I also know it is only installed on one side.
Question being, is there any possible risk of any kind of oil starvation for the crank?
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1999 Alero GLS, 3400, 4T45E, current mods: WAI with Spectre HPR cone filter, VVME 55w 8000k HID kit
275,000 miles as of 05-14-2015 at 1559 est (3:59 pm)
Planned mods: F body front brake upgrade, ported UIM, LX9 top swap, ported exhaust mans, performance cam. Eventually, turbo or supercharger.
1999 Olds Bravada, 4300 Vortec v6, 4L60E. Current mods (on it when I bought it):
75mm ported throttle body, NGK stage 1 plugs, stage 1 heads.
Planned mods: injector upgrade, exhaust headers
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Old 11-21-2014, 08:10 AM   #2
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do you know of any 3400s shitting the cranks in mass numbers?>
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Old 11-21-2014, 08:48 PM   #3
aleros_eat_rice
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Can't say that I have.
I guess I could have worded that different. Would the crank scraper interfere with proper oiling of the crank?
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1999 Alero GLS, 3400, 4T45E, current mods: WAI with Spectre HPR cone filter, VVME 55w 8000k HID kit
275,000 miles as of 05-14-2015 at 1559 est (3:59 pm)
Planned mods: F body front brake upgrade, ported UIM, LX9 top swap, ported exhaust mans, performance cam. Eventually, turbo or supercharger.
1999 Olds Bravada, 4300 Vortec v6, 4L60E. Current mods (on it when I bought it):
75mm ported throttle body, NGK stage 1 plugs, stage 1 heads.
Planned mods: injector upgrade, exhaust headers
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Old 11-21-2014, 11:37 PM   #4
03Alerosil
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I wouldn't think so. I've seen them in other engines.
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Old 11-23-2014, 10:41 PM   #5
SappySE107
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The crank gets its oil to the journals through pressure from the oil pump. The oil thrown off the crank throws to cool the bottom of the piston/lube the pin is still going to be there, but some of the oil will be shed by the scraper. You will see more improvement from the scraper in racing applications and above 6000 RPM.
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Old 11-24-2014, 12:38 AM   #6
aleros_eat_rice
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So it won't cause any kind of oil starvation?
Awesome. Wot-tech has 3x00 crank scrapers for a pretty good price.
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1999 Alero GLS, 3400, 4T45E, current mods: WAI with Spectre HPR cone filter, VVME 55w 8000k HID kit
275,000 miles as of 05-14-2015 at 1559 est (3:59 pm)
Planned mods: F body front brake upgrade, ported UIM, LX9 top swap, ported exhaust mans, performance cam. Eventually, turbo or supercharger.
1999 Olds Bravada, 4300 Vortec v6, 4L60E. Current mods (on it when I bought it):
75mm ported throttle body, NGK stage 1 plugs, stage 1 heads.
Planned mods: injector upgrade, exhaust headers
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