Question about Harley Davidson XL Sportster 883 Hugger Motorcycles

1 Answer

Oil leak leaks oil out of a hose that runs from the lower part of the engine up to behind the oil tank the hose is open on the end, bottom end is attached to the motor/ trany at the bottom of the bike on the left side it makes it look like the tank is leaking but i watched oil leak out of the hose while revving it up( doesn't leak at idle.)

Posted by on

  • 4 more comments 
  • Steve Myers Mar 20, 2014

    Should also say the bike ran great last year this problem accured on my first attempt to ride this spring.So it had sat all winter and then this happened

  • Strech
    Strech Mar 20, 2014

    In that case, it might be oil that accumilated, and is blowing out. You might try removing the hose and cleaning it out then reinstall it and see how it does.

  • Strech
    Strech Mar 21, 2014

    "problem accured on my first attempt to ride this spring.So it had sat all winter and then this happened" Probably from setting all winter, oil leaked past the check valve into the engine\'s lower end. Common on Harleys. This causes a "Wet Sumping" condition. Was the oil tank level low before you started it? If so, the engine was trying to get rid of the excess oil. When Wet Sumping, an engine will either smoke and/or spew oil out the vent until it can clear the crankcase of excess oil.

  • Steve Myers Mar 21, 2014

    if it is the check valve or wet sumping is that an easy fix ?

  • Strech
    Strech Mar 21, 2014

    You could try a new check valve spring. BUT, the seat that the check valve works against might be worn or pitted, so it's a 50/50 chance cure.

  • Steve Myers Mar 21, 2014

    Well I thank you for all the information but I believe I will be taking it to a my local Harley shop this doesn't sound like something I would know how to fix.



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An user who is expert in 3 categories / brands.

  • Harley Davidson Master
  • 1,554 Answers

If the hose comes out the top of the transmission, this is the transmission vent line.

Make sure the line doesn't "dip" anywhere alone it's run, causing a low area where residual oil would "pool", then blow out under pressure.

Also, make sure transmission fluid isn't over-filled.

Posted on Mar 20, 2014

Testimonial: "Stretch was very knowledgeable and extremely helpful."

  • 2 more comments 
  • Steve Myers Mar 20, 2014

    it doesn't just leak a little it will continue to blow out as long as you continue to rev it up.

  • Steve Myers Mar 20, 2014

    where would i check the tranny fluid at ? I was under the impression that the motoe and tranny on a 2001 used the same oil from the oil tank.

  • Steve Myers Mar 20, 2014

    Add a Commentin which case I had it serviced last year and have done nothing this year but start it and attempt to ride.

  • Strech
    Strech Mar 20, 2014

    Yep, you're right, same fluid. You didn't state the model year in the heading, so I was going with the older models.



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

With engine at normal operating temperature why is the top radiator hose hot and the bottom hose warm?

It is normal for the top radiator hose to be hotter than the lower hose. The top hose brings the heated coolant from the engine to the radiator, and the lower hose returns the cooler water from the radiator back to the engine to help keep the engine at proper temperature. For the smell, check to see if you have any oil leaks, especially where the oil may run/drip on to the exhaust manifold. Check the valve cover gaskets, and look for excessively oily areas on the bottom of the car to see if you can find where the oil is leaking from.

Oct 01, 2016 | 2006 Cadillac SRX

1 Answer

There is a open ended pipe that runs above engine oil intake, the other end has a hose connected to it? mines leaking fluid thinking gas

Catch what is dripping and see if it smalls of gas, oil or water. Whatever it is I doubt it should not be open ended and should have a hose attached to it that goes somewhere.

Sounds a bit like an Oil Breather Pipe at that diameter.

Take a look at these.

Oil Breather Pipe Bing images

Jan 05, 2016 | 1997 Dodge Grand Caravan

1 Answer

Oil in water tank

Oil is entering water system via a small leak in the head gasket adjacent to the oil drilling where the oil comes from the pump through the head gasket up to the head itself to lubricate the camshaft / valve gear. Or, there is a problem with the oil cooler found on a lot of Renaults. If you look at the oil filter there may be a metal donut looking piece with 2 x 3/4 water hoses attached to it. Because the oil pressure is 40+ lbs and the water is 14lbs when running, and if the cooler has an internal leak / fracture, the oil will gradually pass to the water jacket by virtue of the greater pressure.
Disconnect the 2 hoses and join the 2 block ends together with a length of hose, refill the coolant, run the engine for a while and see if there is any trace of oil or bubbles coming from the now open oil cooler stubs. If there is then the cooler is leaking internally. Replacement is the only option. The biggest problem you face is that the engine block, radiator, heater matrix are all carrying the oil sludge that's been circulating the water system. Cleaning all that out successfully may be your biggest quest.
How do I know all this, I'm just doing the same job on a Renault Clio diesel!!
Get some quality help, prepare yourself for changing the head gasket, timing belt etc. I'm going to flush mine with a strong detergent mix on reassembly, running a garden hose into the upper rad stub and allowing the lower to vent out and hope it brings most with it. Only a hot washer would help and I've bought a new header tank from online to replace the discoloured one when there's no gunk left. Good luck.

Apr 19, 2014 | 2005 Renault Megane

1 Answer

Carburator leaks gas when cycle is started or running from what looks like vent hose?

Sounds to me like your float valve is obstructed by some debris. This is causing it to stay open and leak fuel. Better it leaks to your vent hose than it leaks in your engine and contaminates your oil.

You need a proper carb cleaning. Not some run in the gas tank sh*t. If the tank wasn't full when parked, chances are there is rust in the fuel system to get this out you need to disassemble the carburetor and thoroughly clean it.

Try not to ride the bike til you do this. It's a fire hazard.

Oct 08, 2012 | 2005 Honda VT 600 C Shadow

2 Answers

I have a 1999 sportster 883 it's leaks oil out

Sounds like you're overfilling the oil tank. Always check the oil with the bike on the stand. There are two marks on the oil dipstick. The upper mark is "FULL HOT" and the lower mark is "FULL COLD". Keep the oil level between the two marks and never "top off" the tank when the engine and oil is cold. As long as you see oil on the dipstick, ride the bike until the engine is at full operating temp and the only add oil if it is below the lower mark. Never fill it to the top mark. Your Sportster holds three quarts of oil that is pumped into the engine and then back out. The 1983-1985 XR1000 Sportsters, the hot rod Harleys as they were called, on held two quarts of oil. I've seen hill climbers that had custom oil tanks on them that only held a pint of oil. As long as you can see oil on that dipstick, you have enough oil. If you're getting so much crankcase blow by that your blowing oil out of the tank breather tube, you need to run a compression or leak down test on the engine to check for ring wear. Also, I've seen bikes do that when the needle and seat in the carb was bad or the accelerator pump diaphragm bad. Smell of the oil. Does it smell like gasoline? If so, you have carburetor problems and gasoline is running into your engine diluting the oil and adding volume to it.

Good Luck

Jul 22, 2011 | 2000 Harley Davidson XL Sportster 883

3 Answers

Revtech 110 blowing oil out the air filter, I sent my bike in for its first service (1000 Miles) and since the service the motor keeps spewing oil out the air filter... oil level reduced as i thought...

Oil coming out of the breather is normal on these engines by the way of design, with basically no way to stop it. There is about 1/2 qt of oil in the bottom end of an engine, as the pistons travel downwards, the air that is under them is being pressurized and is vented out of the engine by a rotary breather valve in the case. The air picks up a small amount of oil from the bottom end as it leaves, then the air/oil mist is vented either into the air cleaner (EPA Regulations) or best if vented to the atmosphere. When it's vented into the air cleaner, some if it recirculates into the engine and out the exhaust, the rest saturates the air filter and then eventually gets blown all over the side of the bike. The best way to vent it, is to route a hose from the breather system down to the frame between the engine and trans, run it under the bike on the right side, point the hose down to the ground and zip tie it in place...Be sure to point the end of the hose down & away from the tire.
If your breather bolts start to leak oil...remove them, and use brake cleaner to completely remove all oil from them, the washers, brackets and threads in the head. Use liquid teflon thread sealant on the bolt threads, and a light film of black rtv on the faces of all the washers and brackets, install everything, let sit for 24 hours, then ride.......if done properly and rtv is CURED, it won't leak...
Also note that most HD's with the oil tank mounted under the seat and are left sitting for a couple months will PUKE oil from the breather, this is due to the gravity....the oil will slowly seep through the oil pump and collect in the bottom of the crankcase and get blown out the breather when the bike is started ...

Good luck...i hope this helps

Dec 13, 2010 | Harley Davidson XL Sportster 883...

1 Answer

When I crank the car, coolant leaks on the lower driver's side of the radiator. When the engine gets warmed up and the thermostat opens, then the leaking stops immediately. I can't see exactly where it's...

Checkyour hose clamps its likely leaking at one of them feel the back side of the lower hose to see if its running down the hose and ending up at the radiator but if it stops when the t stat opens the radiator is probably not leaking

Dec 04, 2010 | 2005 Chrysler Town & Country

1 Answer

1988fxstc. Oil is blowing out of what looks like a oil tank vent hose that ends down by the rear tire. This is not the drain hose, but looks like a venting hose that is open near the rear tire. Anyone...

Without seeing the bike, I would guess that this is the crankcase vent. Originally, the crankcase vent tube came up from behind the oil pump and went to the backside of the air filter. A lot of owners changed the routing of this hose due to oil being blown into the air filter. They simply remove the metal part of the tube and replaced it with a short open ended hose running back and ending just forward of the rear tire.

As for the oil blowing out of the tube, it depends on how much oil blows out of the tube. If it's just a mist that will sometimes coalese into a droplet, this is about normal. But, if it's a steady drip or flowing oil, this is not right.

If the mist is heavy, this could be caused by excessive blowby on the rings creating high crankcase pressures. The use of synthetic oil should not increase the blowby unless the rings are in poor shape, then it will. The use of synthetic oil seems to aggrevate any minor leak turning it into a much larger leak.

If the oil is coming out in a steady stream or pumping the oil out of the engine, you proabably have sheared a key in the scavenge gears of the oil pump and it's not pumping the oil back into the oil tank.

Now there is a vent hose on the oil tank but it should be routed to a fitting on the crankcase that is located just above and slightly behind the top of the oil pump.

Good Luck

Oct 17, 2010 | Harley Davidson FXST Softail Standard...

2 Answers

All my antifreeze is gone no heat

DO NOT RUN THE CAR WITH NO WATER,water has to be present in the reservoir to enable the output of heat from the heaters. switch the engine off put water in the reservoir/antifreeze look at the bottom of your engine, see if there is a leak, ifnot fill water on to correct level, close cap, turn engine on, check for leak under the engine, if not when engine reaches optimum temperature, your car should give out heat. after an hour check level of water in reservoir. if it has totally depleted or decreased by a significant amount then, go straight to the mechanic and tell him your observations, it could be your HEAD GASKET, if it is then start saving

Nov 17, 2009 | 1996 Mercury Villager

Not finding what you are looking for?
Motorcycles Logo

Related Topics:

313 people viewed this question

Ask a Question

Usually answered in minutes!

Top Harley Davidson Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4821 Answers


Level 3 Expert

4348 Answers


Level 3 Expert

78936 Answers

Are you a Harley Davidson Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides