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Old 03-11-2011, 07:27 PM   #1
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Questions?? Bashers: How often do you change your diff oil?

I just went to a full viscous diff setup today and I am curious to know how often you change the oil? I never race, only bash, so top performance 100% of the time is not on my agenda. Would it be safe to change like once ever 2 gallons of fuel?

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Old 03-11-2011, 07:48 PM   #2
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Depeding on what vehicle, you will be fine. Some cars diffs leak, so you will have to watch for that. Most 1/8 diffs you should be able to get away with probably 5 gallons if not more if you just plan to bash.
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Old 03-11-2011, 08:32 PM   #3
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Depeding on what vehicle, you will be fine. Some cars diffs leak, so you will have to watch for that. Most 1/8 diffs you should be able to get away with probably 5 gallons if not more if you just plan to bash.
That's what I'm talkin' about. Took me 3 hours to get to all of the diffs, clean em out, and re-oil em tonight.... My back hurts, lol.
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Old 03-11-2011, 08:41 PM   #4
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for my race buggy, every month(only race once a month).

for anything useally when i brake a diff housing or something.
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Old 03-11-2011, 10:10 PM   #5
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That's what I'm talkin' about. Took me 3 hours to get to all of the diffs, clean em out, and re-oil em tonight.... My back hurts, lol.
get an mini drill with hex bits.

i can do all 3 diffs in about 30 minutes and re-install.

i change my diffs in this pattern

rebuild. race day. practice day. rebuild. ect.
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Old 03-12-2011, 05:11 AM   #6
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get an mini drill with hex bits.

i can do all 3 diffs in about 30 minutes and re-install.

i change my diffs in this pattern

rebuild. race day. practice day. rebuild. ect.
That would make life so much easier....
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Old 03-12-2011, 08:41 AM   #7
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Takes me about 3 hrs or more. but when I clean my diffs, they get cleaned till they look like they just came out of the bag of a BN Kit. Course I have no compressor just tooth brush and simple green, dish soap, and maybe denatured alcohol if i feel like spending 20 dollars on the gallon, and another 15-20 on another gallon of simple green.
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Old 03-12-2011, 09:27 AM   #8
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Takes me about 3 hrs or more. but when I clean my diffs, they get cleaned till they look like they just came out of the bag of a BN Kit. Course I have no compressor just tooth brush and simple green, dish soap, and maybe denatured alcohol if i feel like spending 20 dollars on the gallon, and another 15-20 on another gallon of simple green.
Quick and simple way to get the diff spotless inside. Take a zip lock baggy put the diff housing in it seal it almost completely and stick the straw of the wd40 can in there and blast em out. takes less 1 min to get the inside clean. and all the mess is left in the bag. then just reassemble it with fresh fluid and your good to go. Also you might want to pull the o rings out before you spray the WD40. some times they dont get along.
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Old 03-12-2011, 12:49 PM   #9
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Originally Posted by rider313 View Post
Quick and simple way to get the diff spotless inside. Take a zip lock baggy put the diff housing in it seal it almost completely and stick the straw of the wd40 can in there and blast em out. takes less 1 min to get the inside clean. and all the mess is left in the bag. then just reassemble it with fresh fluid and your good to go. Also you might want to pull the o rings out before you spray the WD40. some times they dont get along.
Good tip, me likey!
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Old 03-12-2011, 03:12 PM   #10
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Another way to get the oil out is to put the complete diff upside down on a kitchen sponge. (with the rough green side)
The sponge wil suck out the oil in a few minutes.
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Old 03-12-2011, 03:36 PM   #11
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Quote:
Originally Posted by rider313 View Post
Quick and simple way to get the diff spotless inside. Take a zip lock baggy put the diff housing in it seal it almost completely and stick the straw of the wd40 can in there and blast em out. takes less 1 min to get the inside clean. and all the mess is left in the bag. then just reassemble it with fresh fluid and your good to go. Also you might want to pull the o rings out before you spray the WD40. some times they dont get along.
I do the same way with zip lock but with parts cleaner liquid (blue bright)
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Old 03-12-2011, 05:36 PM   #12
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A good rule of thumb is to change diff oils after each gallon of fuel in order to optimize performance.
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