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Old 01-18-2009, 09:44 PM   #1
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Default Changing diff oil??

Hi I was wondering how I change the stock grease in my 8ight t to silicone oil. If someone could give me a step by step that would be great!!
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Old 01-18-2009, 09:54 PM   #2
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Hi I was wondering how I change the stock grease in my 8ight t to silicone oil. If someone could give me a step by step that would be great!!

Its quite simple! just take it out and take apart the gears, clean all the grease out with a rag or a clorox wipe works best for me. After its cleaned but the silicon oil in there good enough for good lubrication were EVERY gear meets another and you should be good!

I check the bearings and the gears every gallon and replace the oil the same as above every gallon.

If you start to hear grinding sounds CHECK BEARINGS AND OIL!!!
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Old 01-18-2009, 10:02 PM   #3
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I clean all the gears with brake cleaner, it quickly removes residual grease but isn't so toxic like a heavy duty degreaser.
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Old 01-18-2009, 10:48 PM   #4
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Ya but how do I get it out are there alot of screws to take out?
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Old 01-18-2009, 11:12 PM   #5
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Ya but how do I get it out are there alot of screws to take out?

They got to come out
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Old 01-18-2009, 11:18 PM   #6
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i was in the same boat as you... let me be honest the key here is to just go for it i finally did it and it really isnt that hard at all its just overwhelming to think about trust me very very easy i was afraid to take apart my center diff area ad i just did it over the weekend VERY EASY i feel like i could pull my car apart and put it back together now
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Old 01-18-2009, 11:20 PM   #7
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Ya but how do I get it out are there alot of screws to take out?
the best way to know what screws to take out is to just look at your instrution manuel
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Old 01-19-2009, 12:06 AM   #8
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when i first started i just started taking screws that looked like they needed takin out. i can not take my car apart to the chassis, change fluids in all diffs and shocks and reassemble in like 3 hrs.
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Old 01-19-2009, 03:24 AM   #9
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Quote:
Originally Posted by rgrassey@me.com View Post
Hi I was wondering how I change the stock grease in my 8ight t to silicone oil. If someone could give me a step by step that would be great!!
You can get the step by step instructions from the truck's manual. The best advice I can offer is to use something ( a cup, small box, whatever ) to hold all the bits and pieces as you take them apart.

Oh yeah. Don't forget the grub screw on the side of the diff case. Take it out so that you can remove the pin that holds the outdrive cup in place on the diff case. And remember to put it back when reassembling, otherwise you'll have silicone oil dribbling out all over you when you refill.

Remember, the manual is your friend. Good luck.
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Old 01-19-2009, 12:50 PM   #10
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Something i used to do when i was new to R/C and didnt have the rquired manual.

Take a picture of the area your working on and print it out. Take several pictures if your working on an are that requires alot of dissambly. When you remove the screw thread it through the paper in the corresponding hole and you now have all the screws in the right place.

Hope that helps...Not the greatest way but it works
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Old 01-19-2009, 01:02 PM   #11
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Oh yeah. Don't forget the grub screw on the side of the diff case. Take it out so that you can remove the pin that holds the outdrive cup in place on the diff case.
Grub screw??? What grub screw??? There aint no grub screw in there.....you do realise he is talking about an 8T right. Great now the guy will be looking for a grub screw that doesn't exist.
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Old 01-19-2009, 02:02 PM   #12
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This is why all rc's should come in in kit form. That way
you know how to take it apart, because you put it together
yourself. Don't RTR's come with a manual anymore?
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Old 01-19-2009, 02:51 PM   #13
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Do yourself a big favor buy a rechargeable screwdriver (not a drill). Drills spin to fast and will melt the plastic from the friction. Also look for one that has torque setting the B&D is like $20 bucks or less. Set the torque on 3 so you don't over tighten. Get a set of hex drivers. CarolinasRC has EDS for $23 thats an excellent buy for anything EDS. Then have at it. One of the most time consuming issues. I take that back the most time consuming part. Is simply taken the screws out and replacing them. You might get carpel tunnel doing it. It will cut the job down by 2/3rds.
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Old 01-19-2009, 06:13 PM   #14
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Grub screw??? What grub screw??? There aint no grub screw in there.....you do realise he is talking about an 8T right. Great now the guy will be looking for a grub screw that doesn't exist.
So how do you get the pin out of the drive cup on a Losi? Is diff case large enough to pull he pin out in the case itself?
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Old 01-19-2009, 06:16 PM   #15
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So how do you get the pin out of the drive cup on a Losi? Is diff case large enough to pull he pin out in the case itself?
yes, depending on which cup you have HD cup or regular cup. If its the regular turn the pin towards one of the slots. with a pair of needle nose slide it out. If its a hd cup just slide it out.
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