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Old 07-15-2009, 09:52 PM   #16
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I place 5 drops into the carb while it is wide open,
you should read the bottle of after run...it dose make silicone swell..i.e. dont use it on your epoxy(silcone) stuffed crank, it will make the o-rings in your carb swell if it gets on the slide and pulled into the carb body....just a heads up!
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Old 07-15-2009, 09:59 PM   #17
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I plan to run it dry once its run in. I will check with my local hobby shop if they sell any after run oil.

Once the motor is run in and I start running the tank dry is it still necessary to use the after run oil? If I still have fuel in it I will use it but when there's no fuel to attract the moisture is it necessary?
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Old 07-15-2009, 10:04 PM   #18
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Some say no, some say yes.

I believe that the motor could still have fumes that could condense and cause problems. Yes, I may seem paranoid but why take a chance of getting rust in an expensive race engine.

If you do have a silicon filled crank then you don't want a puddle of after run oil sitting on the silicone. Which is why I use only a couple of drops and spin the motor over until next to no oil is visible on the rag.
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Old 07-15-2009, 10:06 PM   #19
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After run oil is just added protection for your engine once you're done running it. I use after run oil at the end of a day of driving. Just about every hobby shop around the world should carry it, the Hobbico brand is a popular choice, or something very similiar.

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Old 07-15-2009, 10:08 PM   #20
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I use the Hobbico oil pictured with no issues.
I had issues when I didn't use it.
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Old 07-15-2009, 10:11 PM   #21
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Quote:
Originally Posted by Alan D. View Post
Some say no, some say yes.

I believe that the motor could still have fumes that could condense and cause problems. Yes, I may seem paranoid but why take a chance of getting rust in an expensive race engine.

If you do have a silicon filled crank then you don't want a puddle of after run oil sitting on the silicone. Which is why I use only a couple of drops and spin the motor over until next to no oil is visible on the rag.
Really? the O.S. manual says NEVER to put after run oil in the carb. From o.s. .12's to speeds. It most likely will deteriorate the o-rings. Id rather go with the O.S. manual than anything.
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Old 07-15-2009, 10:18 PM   #22
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Really?
My O.S. manual begs to differ.
Attached Thumbnails
Hot to stop a OS engine-img.jpg  
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Old 07-15-2009, 10:34 PM   #23
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Quote:
Originally Posted by Alan D. View Post
Really?
My O.S. manual begs to differ.
haha matter of fact, I have that piece of paper in my hand right now.

way 6
ways to prevent rust
*pull fuel line from engine
*drain tank and start engine
*let it run till its abolutely dry of fuel
*add several drops of after-run oil. There are several after run oils on the market. You can also make your own with a 50/50 mix of "marvel mystery Oil" and automatica transmission fluid.
*after adding the after-run oil. turn the engine over several times to make sure its worked into all of the engines internals. Add more if necessary

THAT LITTLE SHEET HAS NOTHING SAYING WHERE TO PUT THE AFTER RUN OIL!!

So onto the O.S. manual.

Now turn to page 27 of the O.S. manual where it says "Care and Maintenance"

Straight from the manual
4. Then, inject some after-run oil into the engine, and rotate the engine with an electric starter for 4 to 5 seconds to distribute the oil to all working parts

Note:
Do not inject after-run oil into the carburetor as this may cause the O-rings inside the carburetor to deteriorate. These procedures will reduce the risks of starting difficulties or corrosion after a period of storage.
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Last edited by freestylinmotox; 07-15-2009 at 10:45 PM.
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Old 07-15-2009, 10:38 PM   #24
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Where do you propose to put the after run oil in where it will cover the internals of the motor.

If you place it on top of the piston it will wither go out the exhaust or out the glow plug hole and not touch the internals.

I'll let everyone know when I begin having issues with the o-rings.

The ideal way would be to remove the back plate and apply the after run oil.
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Old 07-15-2009, 10:42 PM   #25
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Quote:
Originally Posted by Alan D. View Post
Where do you propose to put the after run oil in where it will cover the internals of the motor.

If you place it on top of the piston it will wither go out the exhaust or out the glow plug hole and not touch the internals.

I'll let everyone know when I begin having issues with the o-rings.
Thats a very good point but I think thats why you turn your motor a couple rotations so it can get all the internals, etc.

p.s. wasnt trying to be rude, Just was reading the manual at the time I saw this thread!...
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Old 07-15-2009, 11:40 PM   #26
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I will have a look for this oil tonight, im going to the hobby shop after work to buy a starter kit (glow igniter and charger, glow socket, tyre spanner and fuel bottle) and some fuel, so if they have the oil I will get it in the one go. Might get some spare glow plugs while I am at it.
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Old 07-15-2009, 11:51 PM   #27
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Quote:
Originally Posted by megasaxon View Post
i always put my finger on the flywheel to kill it, that way i can immediately put the motor at BDC,
I do exactly the same. Stopping the engine with the flywheel also helps me remember to put the motor at BDC.
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Old 07-16-2009, 06:23 AM   #28
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i actualy like cutting it off byt the fuel line because you motor wont have a chance of being flooded during the next start up...

i do cut my truggy off by the fly wheel sometimes..same as my my mt...only some times

but most of the time i just plug the pipe...and or squeese the air filter neck
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Old 07-16-2009, 08:50 AM   #29
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Hot to stop a OS engine .........i use my needle tuning screwdriver -plastic end on flywheel........
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Old 07-16-2009, 08:52 AM   #30
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Quote:
Originally Posted by porkchop View Post
i never run the fuel out my motors at the end of the day
to be honest i don't either, nor do i bother with after run oil
or bdc position, or even a fuel filter
the rc car gods would be uphauled with my special
care and maintanance of my little power plants

but alot of the manuals tell you to burn off any fuel left in the engine
since the fuel we use is corrosive
they also tell you to use after run oil
point is, i wasn't gonna chime in with my personal bad habbits
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