Question about 2003 Harley Davidson FLHTC Electra Glide Classic
Petrol/oil mix is blowing at pressure from crankcase breather tube into carb
All Harleys will get a little oil in the breather.
However, when mileage causes the rings to wear, combustion pressure can leak past the rings, causing higher pressure.
You didn't state your mileage, but at 11 years old, your engine might be ready for a top end rebuild.
Posted on Mar 22, 2014
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Posted on Jan 02, 2017
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
Posted on Apr 30, 2010
I think you already found your problem. Too much oil can push out when hot. Set your level and clean up the mess, you should be OK!
Posted on Jul 08, 2009
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