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Message started by dhabicht1 on 07/12/14 at 12:11:49

Title: oil seepage
Post by dhabicht1 on 07/12/14 at 12:11:49

Any ideas where this oil might be coming from?  It is a new gasket and all the rubber washers are in the right place.

Title: Re: oil seepage
Post by verslagen1 on 07/12/14 at 15:11:24

Could be coming from the oil fill port. New o ring?

Title: Re: oil seepage
Post by dhabicht1 on 07/12/14 at 15:17:01

not a new O ring but I'll check.  It seems it would have to run uphill to come from the O ring

Title: Re: oil seepage
Post by NickGann on 07/12/14 at 15:34:55

speedo cable?

Title: Re: oil seepage
Post by HondaLavis on 07/12/14 at 19:56:17

Clean it off REALLY REALLY GOOD, then dry it extremely thoroughly.  Sprinkle some baby powder, run her up, and let it idle for a while.  Look for wherever the powder gets oily first to help identify the source.

Title: Re: oil seepage
Post by dhabicht1 on 07/13/14 at 13:41:04

i'll try the baby powered this week, it isn't the speedo I checked that

Title: Re: oil seepage
Post by Dave on 07/13/14 at 18:05:24

I was getting a little bit of oil in that spot...but only occasionally and I could not figure out where it was coming from.  It would get in that spot, and in little spray droplets on the top of the right side of the fuel tank.  Some days it would not leak at all....sometimes it would.

One day I had the bike spotless, and after a ride around the block I found a big glob of oil, and the weird thing was that it was from the connection at the speedometer cable.  Apparently what happens is that when I would accelerate really hard in the first few gears, the internal crankcase pressure would build enough that it would force some oil out the speedo nut on the crankcase. I could go for weeks without any oil if I rode the bike normal.  It turns out that only on hard acceleration runs would the crankcase build up enough pressure to make the speedo cable leak.  The oil would then be caught by the wind and carried forward onto the case, and somehow it would also blow into a fine mist that got deposited onto the top of the tank.  I have my speedo eliminated and the cable blocked off - so I put a new larger O-ring on the nut and the problem was solved.

So....it could be the O-ring on the oil filler - or it could be the speedo drive....as the wind causes the oil to go weird places.

Dave

Title: Re: oil seepage
Post by HondaLavis on 07/13/14 at 19:00:01


4A717C6B7A766D6B7078756A190 wrote:
So....it could be the O-ring on the oil filler - or it could be the speedo drive....as the wind causes the oil to go weird places.

Dave


This is so very true.  That is why I am partial to idle leak tests.  The wind variable is eliminated.

Title: Re: oil seepage
Post by dhabicht1 on 07/13/14 at 19:28:52

I'll check all tomorrow, thanks for all the suggestions

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