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Mugen leaky diffs ,protek o rings v S5 o rings

Mugen leaky diffs ,protek o rings v S5 o rings

Old 06-25-2009, 05:36 PM
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Default Mugen leaky diffs ,protek o rings v S5 o rings

i want to know mugen guys who have used protek larger o rings over S5 orings ,how do you get them in ,they are larger to prevent leaking as A main hobbys states .
i can get them into diff case easy but then installing then cup joint on ,im sure it moves up then you have to put the shim on and i get the pin through cup joint but im sure the oring is not flat ,i can tell buy the way the sim shits slightly high 1 side ,,
ANY HELP TIPS SIMILAR TROUBLE ???
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Old 06-25-2009, 05:42 PM
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Push down one side of the shim and get the pin started. Push the pin in until it stops, then push the other side of the shim down and the pin should slide in the rest of the way. It will be tight at first. Be sure to use some thick silicon oil on the oring.
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Old 06-25-2009, 07:04 PM
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Originally Posted by Gen View Post
i want to know mugen guys who have used protek larger o rings over S5 orings ,how do you get them in ,they are larger to prevent leaking as A main hobbys states .
i can get them into diff case easy but then installing then cup joint on ,im sure it moves up then you have to put the shim on and i get the pin through cup joint but im sure the oring is not flat ,i can tell buy the way the sim shits slightly high 1 side ,,
ANY HELP TIPS SIMILAR TROUBLE ???


The o-rings from Tony's Screws are like that too, but once you get them in, the next time you rebuild it is easier and they are great!
O' and I think you added a "h" to sits
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Old 06-25-2009, 08:23 PM
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did they fix this issue with the mbx 6t ? I am looking to buy my first mugen but don' want leaky diffs.
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Old 06-26-2009, 02:19 AM
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didnt notice i put the h there but it certainly does s_it me trying to get it to sit properly

but back to business ,if i get pin in even if i feel it dosent look right are you saying that should be it ?? ,i just feel the shim dosent look right ?
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Old 06-26-2009, 02:25 AM
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Originally Posted by romax View Post
did they fix this issue with the mbx 6t ? I am looking to buy my first mugen but don' want leaky diffs.
nope mate, if i were u , get the mbx6t cause i drives like a dream but get the larger o rings from tony screws. it stops leaky leaky and u dont have to spend wrenching time
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Old 06-26-2009, 05:59 AM
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The fatter o-rings require you to push on the shim washer to get the pin in the outdrive. Make sure you have good grease on the outdrive shaft and on the o-ring sealing area. Once you the diff together, it will feel notchy till the diff breaks in and the o-rings seat. Its better than having the diff seep oil out all the time with stock S5 o-rings.
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Old 12-08-2011, 08:21 AM
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where i can find protek or or s5 or?
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Old 12-08-2011, 09:55 AM
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Originally Posted by turboboost View Post
where i can find protek or or s5 or?
ProTek: http://www.amainhobbies.com/product_...lacement-Set-8
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Old 12-08-2011, 10:01 AM
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Originally Posted by turboboost View Post
where i can find protek or or s5 or?

We sell the new improved/updated clear Mugen orings and Tonys at www.racemugen.com
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Old 12-08-2011, 10:04 AM
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Oh and on another note, don't overfill the diffs, just over the top of the crosspins
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Old 12-08-2011, 10:29 AM
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I run these with no problems in my MBX6. www.mcmaster.com part number: 9396K419

You get 50 for $3.13
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Old 12-08-2011, 12:37 PM
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Originally Posted by MadRussian View Post
Oh and on another note, don't overfill the diffs, just over the top of the crosspins
+ 1
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