Crankshaft Scraper
(Full Perimeter)
During regular engine operation, a significant amount of oil adheres to or becomes entrained in, a cloud surrounding the spinning bottom end. This oil eats up the horsepower your engine is making by increasing the rotating mass and also creating parasitic drag. A crank scraper mechanically strips off excess oil by coming close to, but not touching, the moving crankshaft and rods. It also interferes with the pressure differential that draws oil into the windage cloud.
Our crank scrapers are constructed from steel and include installation instructions. The scrapers are installed between the oil pan and engine block or along with the main bearing caps. Some fitting to your engine may be required, and the procedure for carefully checking this is explained in the installation instructions.
What are some of the benefits of Crank Scrapers?
- Reduced power loss due to excessive drag from oil windage
- Help reduce engine damaging oil-foaming.
- Help avoid oil starvation by keeping the oil in the pan during hard braking and turning as well as during off-road driving.
- Help to cool critical engine parts by quickly returning heated oil to the sump.
- Help to prevent the cylinder walls from being overloaded with oil.
- It can help with fuel efficiency.
Do they work? Yes! Crank scrapers in various forms have been in use for at least 40 years -- and not just in racing! More importantly, they are currently in use in a variety of OEM engines of both large and small displacement -- from relatively low RPM V-8 engines to high RPM straight fours. Most auto enthusiasts are surprised to learn just how common they are. In short, it is an extremely well-proven technology that is often not recognized.
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- 1975-1980 20R 2.2L Engines
- 1981-1995 22R 2.4L Engines
- 1983-1995 22RE 2.4L Engines
To open a printable PDF version of this instruction CLICK HERE
The LC Pro Crankshaft Scraper will decrease crank windage and drag by removing excess oil from the crankshaft while reducing oil foaming, producing increased horsepower and longevity.
Installation Instructions:
1. Install crank scraper with the angled portion of the scraper on the exhaust side of the block, pointing towards the top of the block. With the crank and rods installed in block, rotate and check the clearance between crank/rods and scraper. Minimum clearance .100" required. Modify scraper accordingly.
2. On oil pans that use a silicone seal, apply a 5mm bead of silicone on both sides of the scraper and install the oil pan. Torque bolts to approx. 9 Ft.-Lbs.
3. On oil pans that use a gasket seal apply a 5mm bead of silicone on the block side of the scraper and use a gasket on the oil pan side of the scraper. Install oil pan and torque bolts to approx. 9 Ft.-Lbs.
4. Turn the engine over by hand to assure proper clearance.
27 Reviews Hide Reviews Show Reviews
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Excellent quality!
Crank scraper fit well without modification. Strong and flat so no leaks and easy install.
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Jeffrey Hobbs give 5 stars
I've owned 4 ,85,84 22R pick ups. To me they're the Best motors and trucks. I'm in the process of rebuilding an 84 now. Just adding a couple of performance items. The crankshaft scraper looks like a plus on dependability. Your company has excellent quality parts. And much knowledge. Thanks for your help
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perfect fit
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Crank Scraper
Very good design. No grinding or filing needed. Rarely run engine above 5k rpm so not sure it helps much, but it can't hurt and will never wearout.
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22R crank scraper
Very well made and fit great!
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Crank scraper
Good quality definitely worth the money
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biiger than expt
supposed to be pretty good crank... scrappper
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Top of the line products nothing but the best very professional staff
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Looks nice
This thing is gonna be great can't wait to try it out