Question about Harley Davidson FLHTCUI Electra Glide Ultra Classic Motorcycles
I just noticed that I have a new oil leak that has started on the bottom side of the primary cover. Bike was rode last week and set for a week and there were no leaks then. I rode the bike today for only a couple miles and within a minute it started to drip after parking it. I'm wondering if retorquing the bolts would be a good starting point to stop the leak. Also does anyone know the torque spec on the bolts as well.
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How to Fix Primary Oil Leak on Harley
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Posted on Jul 17, 2017
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Posted on Jan 02, 2017
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
Posted on Jun 30, 2009
SOURCE: Primary Cover Problems
I'd be careful with the heli-coils. Once in they can really be a problem to get back out once they're in place and go through the heat and cool process for awhile
Posted on Feb 06, 2010
The oil you are seeing may very well be from the bike sitting. I have worked on many bikes that have had similar problems. The oil bypasses the rings and gets forced out the top of the cylinder. Once the bike has been used for a couple of days, sometimes a few days longer, the rings expand sealing the cylinder and thus no more oil. It would be a good idea to examine the cylinder bolts too to make sure that the oil is not leaking from the cylinder head.
When a bike, or any motorized vehicle or tool, sits for an extended period of time, parts that are supposed to be lubricated by the motor running will dry out or shrink. This can cause a decrease in engine life and costly repairs. Always try to start your bike, even if you don't ride it, and let it run through the warm up procedure everyday.
Even if the oil leak stops on your bike, you should still have the exhaust leak fixed. Grab the exhaust pipe, when cool :o), and see if you can feel any slack by pulling on it. I would spray a penetrating oil on the bolts, let it sit overnight, and then try to tighten, or replace, them yourself.
Posted on Jan 09, 2011
I would suspect and look for any cracked or damaged rubber or other flexible type gas line/s from or to the tank, and where they connect to. That would be the 1st most probable location of leaks. Then the tank or carburetor/injectors.
Posted on Sep 19, 2012
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