After-run oil in any model engine will help preserve its life. When O.S. states to not put any oil in the carburetor, we take it to mean that it should not be run through the fuel inlet. It's OK to add oil through the venturi of the carb.
Open the throttle to full, squirt the oil in, and turn the engine over several times to work it in.
Please remember that with many engines, a few drops is as useful as using no oil at all. We use healthy squirts to really flood the engine. We also hold the model nose down to make sure the oil gets to the bearings.
A lot of after-run oil may make the engine a bit harder to start the first time at your next flying session, but protection is worth it.
You can use any of the commercial after-run products on the market, or almost any kind of good-quality coating oil. Machine tool oil, non-graphite gun oil, air tool oils, even automatic transmission fluid are all good.
Light oils, such as "3-N-1" are OK if you're using your engine in the next 1-2 days, but it's too light for longer terms.
Don't use products such as "WD-40" or "Liquid Wrench" because they will loosen any rust on the steel parts. The rust will travel throughout the engine and erode the clearances. Iron oxide is a dandy abrasive. Of course, if you use those products from the day you purchase your engine, you'll be OK. Just don't use them if there's any corrosion buildup at all.
We hope you find this information helpful. Should you have any further questions or concerns, please do not hesitate to contact us at this email address. (Please be sure to copy all previous emails into any future questions.)
DID YOU KNOW that our web pages now all contain FAQs? (Frequently asked questions) Please drop by and take a look! We hope you'll find the information helpful and valuable to you.
Sincerely,
Bill Baxter, Manager
Hobby Services
1610 Interstate Dr.
Champaign, IL 61822
USA
Phone: 217 398-0007
Fax: 217 398-7721
Email:
[email protected]
Web:
http://www.bestrc.com