seized from lack of use - RCCanada - Canada Radio Controlled Hobby Forum
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Old 01-01-2008, 02:52 PM   #1
Thunder Chicken
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seized from lack of use

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I have a TT .46 that hasent been run for about 7 years. It had after run oil put into it after its last use, then put into a box.
I took it out the other day, and it is seized solid. Even the carb barrel wont turn!
I'm assuming its probally from the leftover fuel residue/castor oil that has gummed up inside?

I got it soaking in a pot of fuel, is this the right way try to get this thing freed up??

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Old 01-01-2008, 03:18 PM   #2
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I would take the plug and back plate off and soak it in diesel fuel .
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Old 01-01-2008, 03:24 PM   #3
Ed Smith

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Take the engine apart completely. Clean every thing and reassemble. This takes about an hour.

Just soaking the engine may take days. If the engine is just soaked until it frees up, all of the loose crud is still inside to do damage when started.

Ed S
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Old 01-01-2008, 06:40 PM   #4
Gary Maker
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I had a carb barrel completely siezed on my Saito 1.50. Was that way on the plane when I purchased it. Don't know how long it had been sitting. I tried soaking it with no results. Finally, I took my heat gun and gave it a good warm up. Apparently it softens the oil residue and I was able to get it moving again. Soaked it with WD40 and worked it through. I was then able to disassemble it and clean it up properly. Put it all back together and it worked perfectly!

Some people don't realize that you should use thin machine oil, like sewing machine oil to protect your engine if you plan on storing it for any length of time. Heavy oil, like some afterun oils, will dry and harden like cement over time and thus you find your engine seized when you go to use it again.

Just another idea that may work for you. Your going to have to unseize it before you can disassemble it! Worked great for me, at least its worth a try!
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Old 01-01-2008, 06:47 PM   #5
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I bought a "lightly used" OS .61 on E-bay. Nothing moved. I thought I had been taken.

Shot some WD-40 into the carb throat. Minutes later was able to rotate the throttle barrel. Another generous shot down the open carb throat, and a good shot into the glow plug hole. (Use the little red 'drinking straw' that comes with it) Another few minutes and it was cranking over just fine.

I have HUNDREDS of flights on that engine now, and it just keeps on hauling.
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