11-20-2014, 01:28 AM
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#1
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GL Member
Join Date: Feb 2014
Location: Williamsburg
Posts: 300
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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?
__________________
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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11-21-2014, 08:10 AM
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#2
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Powered by LX9
Join Date: Mar 2010
Location: fox vally wi
Posts: 1,429
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do you know of any 3400s shitting the cranks in mass numbers?>
__________________
2001 ALERO GL SED 4 DR--Build Date: 08-16-2000. There are 17 2001 ALERO GL 4 DR vehicles (0.019%) matching my exact options list.
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11-21-2014, 08:48 PM
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#3
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GL Member
Join Date: Feb 2014
Location: Williamsburg
Posts: 300
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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?
__________________
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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11-21-2014, 11:37 PM
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#4
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GL Member
Join Date: Dec 2013
Location: Minnesota
Posts: 593
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I wouldn't think so. I've seen them in other engines.
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11-23-2014, 10:41 PM
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#5
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GX Member
Join Date: Nov 2014
Location: IN
Posts: 11
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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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11-24-2014, 12:38 AM
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#6
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GL Member
Join Date: Feb 2014
Location: Williamsburg
Posts: 300
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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.
__________________
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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