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Old 01-05-2010, 01:24 AM   #1
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Default epoxy ramped on crankshafts?

just want to know what kind of epoxy those engine modders use on the crankshaft?or is it only silicone?
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Old 01-05-2010, 04:12 AM   #2
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Here is a link to the thread.
http://www.rctech.net/forum/exclusiv...nk-shafts.html
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Old 01-05-2010, 05:33 PM   #3
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It is a type of silicone but not just any will do, it needs to withstand the fuel we use.
http://www.reidrc.com/v-specos.htm I think he sells the red stuff.

You don't just take your drill and drill it out though, I do mine in a lathe, some use a mill too. I would think it would be tough to do it without either though.

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Old 01-05-2010, 09:25 PM   #4
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Threebond 1211
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Old 01-05-2010, 09:49 PM   #5
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Quote:
Originally Posted by Mathiew View Post
Threebond 1211


X2.....Red automotive RTV id love to see aftermath pics of that.
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Old 01-05-2010, 11:50 PM   #6
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Is the O.S. speed and Jx cranks just ramped with silicon or are they drilled out, filled and ramped with silicone.
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Old 01-06-2010, 06:28 PM   #7
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I believe they are drilled out, never pulled one out to see how deep though. A waste of time epoxy ramping without drilling it out, the gain is the crank being lighter not the ramp.

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