Seized engine--HELP!

[totalboss]

I have a .21 enigine in an airframe on my shelf for ten years.

I did use after run oil when I last flew it, but even that has evaporated.

The engine will not budge--but I know it's not rust. It's just ten years of fuel and oil that hardened.

What steps should I follow to free up this puppy?

[Duane]

You could try really soaking it with a penetrating oil, or WD-40, then slowly try to free it, little by little, turing it back and forth. It always works for me. And a little heat from a heat gun may help too. If it had after-run oil, it may just be sludge stuck. Working clean stuff will usually free them up.

[totalboss]

I did as you suggested with WD-40--spins smoth as silk now.

[Star-Rider]

Find a old crockpot, put the engine(take apart as much as many big pieces and rubber O ring from the carb first). Put all the metal pieces but not the O ring in the potand heat up the crockpot with antifreeze for 24 hrs and thats it! .

DON'T USE THAT CROCKPOT AGAIN AS IT IS POISIONESS!!!!!!!!!!!!

Star-Rider

Check this out and search or ask for help on its forum!
www.spadtothebone.com

[holyowned]

Originally posted by Star-Rider
Find a old crockpot, put the engine(take apart as much as many big pieces and rubber O ring from the carb first). Put all the metal pieces but not the O ring in the potand heat up the crockpot with antifreeze for 24 hrs and thats it! .

DON'T USE THAT CROCKPOT AGAIN AS IT IS POISIONESS!!!!!!!!!!!!

Star-Rider

Check this out and search or ask for help on its forum!
www.spadtothebone.com

Another alternative is paint and gasket remover. Had an old .61 that was locked up. 2 hours tearing it down, spraying it down with gasket and paint remover, little oil on reassembly. Runs like a champ.;)

[Mattydiah]

LIquid Wrench penetrating oil works well also. I am currently rebuilding a '72 Honda 450 Street Scrambler that has been sitting for 15 years and when I got it, both cylinders were locked up. I shot some Liquid Wrench in the spark plug holes and let it sit overnight.

Next morning it turned over without a hitch

[Hothandle]

Remove the RC carb, place in oven at 250 degrees, this should free up engine.
While motor still hot place prop on engine and turn over.

Hothandle

[Zor]

Is this not interesting?

Over more than five years and six months and 2166 access and only 8 postings this thread is surviving.

The subject has been discussed in many other threads since.

AMAZING.

Zor

[Zor]

Visit at www.enginerelease.com (http://www.enginerelease.com/)

Liquid solution for your seized Engine

Just wondering if someone is doing some commercial advertising in this thread :D

Zor

[Jeffery]

Just wondering if someone is doing some commercial advertising in this thread :D

Zor

I'd say Seized and bony both are.

[Zor]

I'd say Seized and bony both are.

Ya _ _ _ buy an old car from the auction then get the stuff to unseize the engine :p ;) :) :D

[Gudgeon]

And TB had his problem solved by the first response.