Amateur with a leak...

[SixShooter14]

Alright, I'm new around here and even newer to bikes. I seem to have a "small" leak.

This is on a '92 FXSTC. The front lower of the engine.

I don't know all the terminology, so please be as specific as possible.

What fluid would leak from here?
What would cause the leak?
How to fix it?









Btw, I have a service manual in the mail.

[pumpguy68]

In your first pict just to the left of center is that a crack or paint peeling off?

From what I can tell it looks like the cases are leaking where they are mated together.

Ray m

[Tynker]

Alright, I'm new around here and even newer to bikes. I seem to have a "small" leak.

This is on a '92 FXSTC. The front lower of the engine.

I don't know all the terminology, so please be as specific as possible.

What fluid would leak from here?
What would cause the leak?
How to fix it?









Btw, I have a service manual in the mail.

Looks like the "O" ring between the inner primary, and the case

[pumpguy68]

Could very well be the oring.

Best way to tell is 1st clean all the dirt and oil off so you can see where it's coming from.
2nd check primary fluid and see if it's low.

Ray m

[SixShooter14]

Yep, will be cleaning and degreasing in the morning.

Will try to take some more pics then.

Thanks for the quick responses

[mr. pitts]

You will need to get the whole area spotlessly clean & then ride it some to try & see where the oil is coming from. A light mist wouldn't be too great a cause for concern, but if yer gettin' drips on the floor, then it needs a lookin' at.

[codyshop]

Looks like the stator connection to the voltage regulator. 

[SixShooter14]

Ok, so I degreased it...





Then rode about 2 miles...got up to 2nd gear. Is this far enough?





Not noticing the leak yet, but will let it sit a bit.

[SixShooter14]

Alright now....let it sit a couple hours and no dripping, no oily spots....wth, did I plug the leak when running a towel over it?

So I took her out for about 15 miles, got up to 75 through all 5 gears. It does feel a little hard shifting through 1-3 and back down. But into 4th and 5th is smooth as butter....

I will try to check primary fluid and tranny fluid. Being the first fluid change since I've owned it, I don't know how much of each the previous owners put in. Nor when they last changed the fluids. I will write down how much of each I put in and see if any leaks afterwards.



Also, what was dripping seemed rather thin (almost watery thin) and rather light brown. Wonder if gas could have run down and picked up grease and turned brown. I'll be looking at the fuel lines and petcock for any cracked or loose spots.

[FSG]

Has the engine/frame taken a hit as it sure looks odd in the area circled.

[SixShooter14]

Has the engine/frame taken a hit as it sure looks odd in the area circled.

Not that I'm aware of. But who knows.

[Wicked]

Looks like the "O" ring between the inner primary, and the case

! Looks like seepage there....enough buildup and it will drip.  You got'er good n clean so should be no problem to locate it...
Paul

[SixShooter14]

Looks like the "O" ring between the inner primary, and the case

! Looks like seepage there....enough buildup and it will drip.  You got'er good n clean so should be no problem to locate it...
Paul

Thanks, I'll keep a close eye on it and go from there.

[pumpguy68]

Has the engine/frame taken a hit as it sure looks odd in the area circled.

That does look a bit odd now that you pointed it out.

Not sure how one would bend the frame there without damage elsewhere.

Ray m

[Flhfxd]

      Frame doesn't look bent to me. That bolt looks a bit suspect though. Had a similar leak on an EVO. The sealer on the case halves just deteriorated over time. If I cleaned it up, it would take quite a while to come back. Rode it like that for years. Its ugly but won't hurt anything.

[JohnFlorida]

If youre running syn oil try switching back to regular. Synthtic has a way of wicking past older gaskets .

[SixShooter14]

If youre running syn oil try switching back to regular. Synthtic has a way of wicking past older gaskets .

The engine oil is non-syn. But I haven't changed the primary or tranny fluids in the 2 weeks I've owned it.

[nibroc]

keep after it---you'll learn---nuttin wrong with the snyc oil

[apes]

sometimes you can mist a little flour ( as in baking ) on the suspected area and the seeping oil will form a trai
l leading to the leak

[hillcat]

Has the engine/frame taken a hit as it sure looks odd in the area circled.

That does look a bit odd now that you pointed it out.

Not sure how one would bend the frame there without damage elsewhere.

Ray m

Sometimes a collision with an animal will cause some unusual damage.

[yankee dog]

sometimes you can mist a little flour ( as in baking ) on the suspected area and the seeping oil will form a trai
l leading to the leak

Foot deodorant spray (the white stuff) works good also. If it is stator plug (pretty common problem do a search, tons of info and a few simple remedies that might work)) then consider yourself lucky...YD

[SixShooter14]

Alrighty folks....

Enlighten me:

[SixShooter14]

sometimes you can mist a little flour ( as in baking ) on the suspected area and the seeping oil will form a trai
l leading to the leak

Foot deodorant spray (the white stuff) works good also. If it is stator plug (pretty common problem do a search, tons of info and a few simple remedies that might work)) then consider yourself lucky...YD

The plug with the 2 wires coming from the crankcase??

Looking at my last pic, the area around there seems clean. I'm thinking it's below there between the primary case and crank.

Btw, I don't know all the proper terminology so if I misuse a name, please let me know.

Thanks

[pumpguy68]

There is a oring in between the motor and the inner primary that is what is leaking.

That sucks play doe won't fix that. The primary has to come off to put the new oring in.

Ray m

[SixShooter14]

There is a oring in between the motor and the inner primary that is what is leaking.

That sucks play doe won't fix that. The primary has to come off to put the new oring in.

Ray m

10-4...I was afraid of that.

How big of a job is something like that? I'm quite adept with tools and mechanically inclined. But I don't have a shop, so it'll be "shadetree mechanicing".


I'll try to get a co-worker who's worked on a few Harleys and has a garage to help.