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Increase compression of an engine Answered

I am hoping to find a way to increase the compression of a small.18 radio control engine. I was wondering if applying high temperature epoxy would work because it will go on the sleeve rubbing against the piston or holding aluminum foil with the epoxy. 

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Burf
Burf

Best Answer 7 years ago

No. Neither aluminum foil nor epoxy are any where near being durable enough. There are ways to do it, such as chroming the sleeve bore or getting an oversize piston and milling it to the correct dimensions but these would cost you more than buying a new piston and sleeve.
If you're simply wanting to increase compression, you can mill the head but that is going to require some precision equipment to do the job properly.
If they are available, I'd recommend you just buy a new piston and sleeve or see if you can have the head milled. Talk to your local hobbyist, he can give you the best advice.

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steveastrouk
steveastrouk

7 years ago

Is this a standard 2 stroke kind of engine ? No valves in the head ?

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steveastrouk
steveastrouk

Answer 7 years ago

Its a machining job - either cut back the top of the cylinder, or a stretched piston.

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jbaker22
jbaker22

Answer 7 years ago

It is a 2 stroke methonol engine. Can I steel plate it by clipping the sleeve to -15 volts dc and have a steel object on the posative, all in salt water? It only needs like a mm more in diamiter.

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lemonie
lemonie

7 years ago

If you're going to do this; do it properly by getting proper replacement parts.

L