HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Dec 31, 2004, 07:27 AM
Registered User
Joined Dec 2004
13 Posts
Question
New RC'er - engine question

I was given RC kit for Xmas. Engine is NOS, Fox 45 BB RC that is 20+ years old. Throttle won't move and I suspect original factory lube has hardened. What is the best way to prepare this engine for operation?
mhgoldwing is offline Find More Posts by mhgoldwing
Reply With Quote
Sign up now
to remove ads between posts
Old Dec 31, 2004, 08:45 AM
BAKO
Bako's Avatar
Tbilisi, Georgia
Joined Jul 2004
772 Posts
just remove any rubbers, remove glow plug and drop in antifreeze. let it cook there about 4 hours. or take it apart and wash everything with kerosine, using tooth brush. but i think cooking is better. it will look like new.
Bako is offline Find More Posts by Bako
Reply With Quote
Old Dec 31, 2004, 09:31 AM
Registered User
Canada, NS, Lunenburg
Joined Oct 1999
3,863 Posts
I would use glow fuel rather than antifreeze and let it soak for 24 hours. You can then leave the rubber bits on. If you decide to use anti-freeze, there is usually a rubber gasket between the backplate and the crankcase, on the carb to crankcase mount and maybe one inside the needle housing in the carburettor.

You will probably have to take the carburettor apart to clean out all the small holes but this is easy to do as long as you remember where all the small bits go.
DaveSawers is offline Find More Posts by DaveSawers
Reply With Quote
Old Dec 31, 2004, 10:32 AM
Registered User
Joined Dec 2004
13 Posts
Thanks

Thanks for the help.
mhgoldwing is offline Find More Posts by mhgoldwing
Reply With Quote
Old Dec 31, 2004, 09:00 PM
Registered User
N1EDM's Avatar
Brockton, MA
Joined Nov 2003
344 Posts
Some folks have suggested that there's another technique. Warm the engine in an oven (not too hot, say 225F max) to see if the engine will move. Sometimes, all that is holding it is hardened caster oil that needs to be softened.

If that works, then flush the engine (or better yet, disassemble and clean it) and fire it up. If you disassemble it, be careful of the backplate. Most likely, it will have a paper gasket that will rip. See if you can get spare gasket kits on line.

Just giving another option.

Bob
N1EDM is offline Find More Posts by N1EDM
Reply With Quote
Old Jan 01, 2005, 10:46 PM
Registered User
USA, NJ, Somerville
Joined Nov 2004
24 Posts
I just freed up a 30 year old engine this week by cooking in antifreeze for about 4 hrs and it seems the most efficient method. I originally tried putting the engine in alchohol overnight but it didnt do anything.


Dave
dszabo2 is offline Find More Posts by dszabo2
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion New to RC Helis and have question? dh1295 Electric Heli Talk 6 Jul 30, 2007 08:07 PM
Discussion Help I shorted a batt! I'm a new RC'er!! thor0429 Batteries and Chargers 6 Apr 21, 2007 11:35 AM
Question New To RC planes: Tips For Mounting My Engine littleport2003 Engines 5 Dec 29, 2004 02:17 PM
Rave New to RC battery question peteone Batteries and Chargers 1 Sep 08, 2004 03:46 PM
New to RC Airplane - Question about S400 F9F Panthere NetForce2K Electric Ducted Fan Jet Talk 6 Apr 29, 2002 10:56 AM