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Old 06-04-2008, 08:17 PM   #1216
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Sorry pracy, I haven't been on the forums the last two days to reply but it looks like your questions were answered.

If you sand the diff cups, you can still use one gasket as you're only taking off maybe 0.0004" (yes that is right 4/10,000ths). When you build the diffs, there are 4 thin washers/shims that go behind the four small spyder gears. You have to use these. But do NOT use the small S3 o-rings in the manual. On the S5 o-rings, I sent you some of my MBX5 o-rings that I sell on my website. They are slightly thicker than stock and work very well. Don't be afraid to use the grease on the o-rings, the out drives (make sure you get grease in that grrove on the out drive shaft) and the large washer/shims that go behind the two larger spyder gears. There will feel like there is a lot of play in the diff when you assemble it and push the out drives in and out. But when you spin teh out drive it'll feel tighter. Only fill with diff fluid to the cross pins. I fill mine and then slowly turn the outdrive in the cup to settle the oil.

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Old 06-05-2008, 09:36 PM   #1217
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thankyou very much for your replies fellas!!

do you guys use grease on your ring and pinion gears? (the gear that connects the drive shafts to the diffs if thats what its called)

I have some metal shavings after using them without grease and i am helping a mate put a xray 808 kit together and they show using grease in that area.

should i be using some?

thankyou heaps!
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Old 06-05-2008, 09:43 PM   #1218
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If you're talking about inside the diff housing, then yes, grease that. I use a fair bit of grease in there.
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Old 06-05-2008, 10:05 PM   #1219
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Quote:
Originally Posted by pracy View Post
thankyou very much for your replies fellas!!

do you guys use grease on your ring and pinion gears? (the gear that connects the drive shafts to the diffs if thats what its called)

I have some metal shavings after using them without grease and i am helping a mate put a xray 808 kit together and they show using grease in that area.

should i be using some?

thankyou heaps!



coat the Ring gear all the way around while spinning the gear and it'll get all over the pinion....but using EXcessive amounts is not needed...coat the gear's and ur good....anything extra will be Slung off the gears anyways.
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Old 06-05-2008, 10:30 PM   #1220
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I will coat the gear and pinion with automotive axle grease. I dab some in the groove of the chassis also. Eventually it slings off, but with bumping around the grease will always be there for the ring gear.

Also, I smear Mugen super grease around the bottom of the bulkhead case where it seals against the chassis. This leaves a barrier to catch dirt and keep out moisture from creeping in when cleaning the car.
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Old 06-06-2008, 02:15 AM   #1221
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run a bead of grease around ring gear you dont need loads as most of it flings off anyway but you do get some left behind, if you can get it try the eureka lube this stuff is supposed to be the stuff for this kind of application it also works with spur clutch bell contact also, the lube has had some very good comments from seasoned racers so looks good, havent tried it myself yet but its on my list

http://www.twf8.ws/new/tech/options/.../eurekapro.htm

http://tkocompetitiondev.com/shop/index.php?cPath=38_97
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Old 06-06-2008, 07:55 AM   #1222
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I just use black moly grease on my ring and pinion gears. Just a light coating as like everyone here has said it'll just fling off ifyuo put on a lot.

Best regards,
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Old 06-06-2008, 08:52 AM   #1223
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I'm looking for a 48t spur gear,anyone have one to sell?
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Old 06-06-2008, 08:53 AM   #1224
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I am sure I have missed this thread, but does anyone have news on a new Mugen buggy
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Old 06-06-2008, 09:03 AM   #1225
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My clutch seems to be overheating, discolouring the clutch bell and killing clutch bearings. Anyone know where I should be looking for a problem? Aluminium shoes, 1mm springs, 14t cb, standard spur, novarossi Plus 21-5. Shoe wear to be expected, springs still sit within shoe easy.
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Old 06-06-2008, 09:21 AM   #1226
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Quote:
Originally Posted by Turbine_au View Post
My clutch seems to be overheating, discolouring the clutch bell and killing clutch bearings. Anyone know where I should be looking for a problem? Aluminium shoes, 1mm springs, 14t cb, standard spur, novarossi Plus 21-5. Shoe wear to be expected, springs still sit within shoe easy.
what shoes ?..and how old are they ?
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Old 06-06-2008, 09:37 AM   #1227
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what shoes ?..and how old are they ?
Mugen aluminium ones, not very old.

Incorrect shimming maybe? How much play do you guys have in your clutchbell?
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Old 06-06-2008, 09:46 AM   #1228
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Quote:
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Mugen aluminium ones, not very old.

Incorrect shimming maybe? How much play do you guys have in your clutchbell?


nah the stock mugen alum are JUNK in yo Trunk....compared to other 7075 allum shoes they arent the best....i would look into a set of Dynamite Max life shoes...or Ofna Silver's...both are the good 7075 and should take WAY more abuse then the mugens do.....u should have .4 end play in the bell...Kyosho 5X7 shim kit is what u reallly need to get 100% bang on end play.

and keep the 1.0 spring set-up...1.1's KILL shoes alot Faster then 1.0's.
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Old 06-07-2008, 01:08 AM   #1229
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Can anyone measure these on their MBX5r front shock tower?
I would also like your input on the carbon shock towers sold on ebay...if someone has tried them out!
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Mugen MBX5R-85cd_1.jpg  
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Old 06-09-2008, 11:30 AM   #1230
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Congrats to Mr. Hughes and Mugen - Top 5 at the nats!! with the buggy every one says is too heavy and slow!
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