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Throttle linkage for Gas engines

Old 10-12-2012, 06:52 AM
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aminklein
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Default Throttle linkage for Gas engines

I've read that a direct metal-to-metal connection on the throttle linkage for a gas engine will cause electrical interference between the ignition and the radio receiver. It's recommended to use some sort of nylon component on the linkage to insulate the connection. Will a nylon clevis on the throttle arm of the engine work? Will the heat from the engine effect the nylon clevis? I'm looking for a heavy duty nylon clevis that will fit a 2-20 thread on a rod, but they're hard to find. Is there any other solution? Thanks
Old 10-12-2012, 06:58 AM
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Default RE: Throttle linkage for Gas engines

A nylon clevis will be fine.
Old 10-12-2012, 10:53 AM
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Default RE: Throttle linkage for Gas engines

you are correct with regard's to the plastic. You also want the connection to stay on the throttle linkage, they way you set up a nitro engine will not work.
I use a meatal ball with a 4-40 or 5-56 screw though it and a washer on top of the plastic rod end to keep the plastic link from popping off the ball.
pm me and I can send you a picture.

or these work




http://www.sullivanproducts.com/ContSysAccMainFrame.htm

the plastic wheel on the servo will stop the electricity
Old 10-12-2012, 01:42 PM
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Default RE: Throttle linkage for Gas engines

Have a look at this thread.
http://www.rcuniverse.com/forum/m_11...m.htm#11212005
Regards Mark
Old 10-12-2012, 08:20 PM
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vertical grimmace
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Default RE: Throttle linkage for Gas engines

I use a plastic ball link threaded 2-56 into a short thread then into a golden rod inner sleeve supported by the red or grey outer sleeve. A nylon clevis would be fine though I am sure. The one time I had bad RF interference was from a bad plug cap on my G38. With 2.4 and a modern EI, you should not have much to worry about with the nylon clevis.
Old 10-16-2012, 08:07 AM
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gade600sdi
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Default RE: Throttle linkage for Gas engines

Use a 2-56 ball link on a carbon rod or a nyrod, metal rod last choice. The RF is not as big a concern on 2.4 systems, the bigger concern you have is using a clevis, too much slop and will inconsistent idle. A clevis suggested above is wrong a BALL LINK!
Old 10-16-2012, 08:42 AM
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Default RE: Throttle linkage for Gas engines

Ball links on both ends, Dubro flexible metal cable with the throttle spring left engaged. Very smooth and slop free, especially with the return spring engaged.
Pete
Old 10-17-2012, 08:40 AM
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gade600sdi
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Default RE: Throttle linkage for Gas engines


ORIGINAL: pilotpete2

Ball links on both ends, Dubro flexible metal cable with the throttle spring left engaged. Very smooth and slop free, especially with the return spring engaged.
Pete
I should have said what Pete said BALL LINKS meaning on each end. Just dont use any clevises. I agree with the throttle spring also, I usually try to unhook it and move it to the next hole so the servo drain is a little less, but I would prefer a solid rod vs. cable which has some play involved, never tried the flexible cable but not sure what advantage it would have over a straight nyrod or metal rod.
Old 10-17-2012, 09:19 AM
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dadragon
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Default RE: Throttle linkage for Gas engines

I use fiber arrow shafts and ball ends and I unhook the spring completely.

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