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Old 11-27-2008, 09:00 PM   #16
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I use Breakfree gun oil as after run. It has worked great for me for many years!
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Old 12-19-2008, 12:30 AM   #17
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Marvel Mystery Oil is pretty much the same as Hobbico after run oil.

I will not use WD-40 any more after having 3 engines with main bearing failure due to rust after using WD-40.
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Old 12-19-2008, 12:34 AM   #18
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also if you have a silicone puddy filled crank DON'T use heavy solvents on it.. lol just some food for thought..
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Old 02-09-2009, 04:28 PM   #19
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Quote:
Originally Posted by GHETTOTEACHER View Post
I use Breakfree gun oil as after run. It has worked great for me for many years!


I run Morgans Sidewinder and never had issues. Has afterrun oils built in. But for storage I use Breakfree CLP also.

Run the engine 'till it dies. Squirt some CLP down the carb while cranking it over by hand. (don't do it on the box CLP will hydrolock) Pull the plug and spray some more. Then remove fueline from carb.


Long term storage or if I'm pulling the motor and keeping it as backup, I'll tear the motor down completly and change the front bearing and spray everything down with CLP and use steelwool to clean carbon of the head and piston top.
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Old 02-10-2009, 12:30 AM   #20
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Has anyone had a real bad experience with the sillicone insert using WD40 ?
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Old 02-10-2009, 01:35 AM   #21
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Has anyone had a real bad experience with the sillicone insert using WD40 ?
One time. My novarossi's silicone orange putty in the crankshaft got swollen.

I'm done with WD40 or any oil lubricant sprays to clean engine's internals.

Only nitro fuel, novarossi / mugen seiki after run oil , and rubber safe electric motor spray can go inside my engines.
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Old 02-10-2009, 09:10 AM   #22
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Has anyone had a real bad experience with the sillicone insert using WD40 ?
Yes, as i said before, WD40 in spray uses butane as the impelent gas, and butane swollens and eventualy destroys the silicone ramp on crankshafts, and/or certain rubbers. If you use WD40 in non spray format, it's OK, as is any mineral based oil, unless you use specically designed synthetic oil that mixes with methanol.

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Old 02-10-2009, 09:44 AM   #23
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But why don't people just use normal invented for the purpose "after run oil".... because of the costs?... Yeah, it really dents your wallet, does it.....
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Old 02-10-2009, 10:54 AM   #24
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hehe you are right M7H. i myself use after ruun oil to clean the engines internals
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Old 02-10-2009, 11:53 AM   #25
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Quote:
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But why don't people just use normal invented for the purpose "after run oil".... because of the costs?... Yeah, it really dents your wallet, does it.....
Afterrun is no invention, it is just some type of oil they buy in large amounts and drop it in a small bottle and lable it with "afterun". Even Castrol says when using a synthetic oil you have to use some castor oil afterwards to prevent the engine. Indeed gun oil seems to be used most.
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