Small oil drip from bottom rear of primary chain case. I suspected the inner primary seal, so i disassembled the primary to inspect seal and it is dry and looks good. With primary housing removed noticed hose coming off of the trans, probably a breather. How much oil is expected to get out of the breather.
Very little, if any, unless the trans was over filled, then the oil may come out of the breather hose. Did you check the shift shaft seal when you had the primary off?
If all the other ideas have failed, remove the primary case and replace the seal the starter goes through. You will find a video on YouTube on how to do this.
SOURCE: 89 Harley FLTCU oil coming from the crankcase breather tube and
This is an age old problem for the Harley engine. In you 89 model, the crankcase breaths from behind the oil pump through a tube that runs to the backside of the air filter assembly. Most people that I know, simply remove the tube coming up to the air filter and block the hole in the air filter assembly backing plate. At the breather, they run a short hose to just behind the transmission and cut it off there. This is similar to the earlier Shovelhead engine and the way it breathes. In 1994, Harley went to the "head breather system" which was better but it still gets oil into the air filter assembly.
There is one thing I saw on the aftermarket assessories market once called a "CatchCan". The breather tube ran to it and it seperated the oil from the air and the held it in a small container to be emptied on a regular basis. I have never used one nor have I ever seen one so all I can tell you is what the book said. Matter of fact, I cannot remember where I saw it now. Custom Chorme catalog, maybe. Good Luck, Steve
SOURCE: have devolped a small leak on 2005 road king.
Spray it off at the car wash to remove all the oil , then spray Right Guard (Yes, that Right Guard) on the area of the leak. It will show up, but you may not be able to see exactly where. There are a couple spots where it can leak. The jackshaft oil seal, as you said, transmission output shaft (clutch shaft) on the trans itself, the inner primary seal where the trans shaft runs thru, the engine sprocket shaft oil seal, inner primary O-ring, the bolts that hold the inner primary to the engine/trans, the primary chaincase gasket and the drain plug. Hopefully when you get it apart, you will see which seal is leaking. If not, replace them all. Still want to fix the leak? LOL
SOURCE: torque specs for derby , inspection cover, &
what is the torque specs for a derby cover on my 2009 Soft tail?
SOURCE: 93 Dyna low rider fork oil.
your local hd shop should be able to answer this for you as its a mesured amount and to much or too little will make the bike not handle right
The Drain plug is at the bottom back of the Primary. After Drianing the old oil remove the bonnet cover and add one OT of Oil.
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