closing the swingarm drain holes. Good idea?

nicolasr

Member
Joined
Jan 12, 2013
Messages
56
Location
Medellín, Colombia
Hi. I just did the rear suspension and swingarm maintenance. And changed the front seal of the final drive because it was leaking. I was surprised with the amount of sand and debris inside the swingarm and obviously that was the reason of the oil leak. I got all the rubber plugs sealed with ultra grey and even zip-tied the rubber boot in both sides since bike was new. The only place where I think that dirt could have gone inside was through both drain holes placed underneath the swingarm.
I cleaned the whole swing arm and bolted all together, but what do you think of closing both darin holes???
My common sense tells me that if there is no way of getting dirt and water inside I wont need the drain holes to get anything outside either. My only concern is building some pressure inside an blowing something like the plugs or maybe the oil seals.
I have already fitted a couple od M4 stainless steel allen bolts as plugs and they thread in perfectly.
What do you think of this idea of keeping the inside of the swingarm clean and avoid any oil leaking???

Thanks
 

Karl

Active Member
Joined
Jul 18, 2015
Messages
143
Location
Sydney Australia
Personally, I would not try to seal it.

It does not matter overly if it gets dirty in there.
If you do make a seal, you will probably blow out the rubber bungs due to pressure changes.
Any moisture that gets in there can not get out and may cause corrosion (including condensation).

K
 

patrickg450

Well-Known Member
Joined
Jun 20, 2012
Messages
2,074
Location
Memphis TN
what year id your bike? IS the oval "plug" missing? right side, inner swing arm towards the front of the rear wheel
 

nicolasr

Member
Joined
Jan 12, 2013
Messages
56
Location
Medellín, Colombia
patrickg450 said:
what year id your bike? IS the oval "plug" missing? right side, inner swing arm towards the front of the rear wheel
My bike is 2012. None of the rubber plugs is missing since I glued them since new.
 
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