View Full Version : Tranny lubed or not?
05-15-2009, 03:49 AM
Before you judge me I searched the forum with no luck. As the title says it may look like a dumb question, but coz I am new to electric RC and building my ERBE from scratch.
It's a long story and to make it short, I have a revo 3.3 and a lot of spare parts which made me think of building another revo (ERBE) and buy the missing parts (which I did).
So, could you guys help me? Thanks a million
05-15-2009, 04:03 AM
No, it is not lubricated stock, nor should you lubricate it with anything...plastic gears do not require lubricant at all.
05-15-2009, 08:26 AM
I don't the statement that plastic gears do not require lube is 100% correct..
But because the tranny is not completely sealed, any lube will act as a dirt collector, and this trapped dirt will serve to grind down the gears. hence it's more a matter of the lesser of 2 evils.
Generally speaking, any bits that aren't completely sealed should not be lubed
05-15-2009, 02:04 PM
A little graphite powder can be beneficial, just be gentle and careful only a little bit.
05-15-2009, 02:06 PM
I love lubrication, especially in the diffs and bearing, but not in the tranny. My tranny is dry for sure.
05-15-2009, 05:48 PM
The plastic that Traxxas uses for their transmission gears has its own lubrication built into it (as do 99% of all other manufacturers), and does not require or need any extra lubrication...any extra lubrication will collect dirt & grime and wear down the gears, eventually causing them to fail.
Hey nitrostarter, is that song "Key to Gramercy Park" about the Gramercy you live in?
05-15-2009, 06:07 PM
Thank you guys for the info, appreciate it.
05-15-2009, 06:17 PM
I lube my transmission. Two of the three gears are metal so I put a small amount of grease in there to keep things smooth normally. The last time I took it apart I cleaned it and put the O'Donnell Krytech lube in there. Seems to work fine.
05-15-2009, 06:54 PM
Yea, if you have metal transmission gears, they do require some lubrication.
05-15-2009, 07:24 PM
How does dirt collect in a sealed tranny ?
I use a little white lithium grease on all my tranny's , metal or plastic .
It may not be required , but it couldnt hurt .
05-15-2009, 07:42 PM
That's the thing, the tranny isn't totally sealed. The chances of dirt getting in them is pretty slim, but grease and oil can leak from a small hole in a tranny and get all over. You could run a bead of RTV or silicone around the tranny before tightening it down all the way.
05-15-2009, 08:16 PM
Correct, the transmission is not sealed, and dirt and grime gets in there pretty easily. Like I said, the plastic gears are self-lubricating, so adding extra grease to them only causes increased drag, which causes the transmission not to spin freely...and we all know drag is a bad thing. Wash your transmission gears thoroughly and let their self-lubricating properties do what they're supposed to do! :)
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