Question about Harley Davidson FXR Super Glide Motorcycles

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I have a 92 fxr with oil weeping from breather also oil in tank becomes aerated after only a few minutes. Any help appreciated.

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  • Harley Davidson Master
  • 767 Answers

It could be the oil rings have broken or worn out.
Time for an overhaul.

Posted on Oct 06, 2013

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Posted on Jan 02, 2017

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wd4ity

wd4ity

  • 4565 Answers

SOURCE: i have a 1990 harley

This is a common problem with the older bikes. The reason is the position of the oil tank and the type of oil pump the engine is equipped with. With the tank being higher than the engine, oil will seep past the check ball in the oil pump and into the engine. When you fire the engine up, the oil pump cannot pump the excess oil back into the tank quickly enough and some gets blown out of the crankcase vent. If you allow the bike to sit for extended periods of time, this problem is worse. It's commonly called "oil sumping" around here. When you hear an old Shovelhead rider talking about his bike "puking", that's what he's talking about. I've seen those bikes puke nearly a quart of oil after sitting a few months. I've seen Ironhead Sportsters completely drain the oil tank into the engine. This is normal to a degree but if it gets too bad, you can "reseat" the check ball by removing the plug above the check ball on the oil pump and use a small hammer and punch to gently tap the ball into the seat in the pump. Then, remove the old ball and drop in a new one.

Good Luck
Steve

Posted on Jul 27, 2011

wd4ity

wd4ity

  • 4565 Answers

SOURCE: what could cause excessive oil pressure in the oil

Check your crankcase breather hose. On the '88 model, it originally came from way down low behing the oil pump up to the backside of the air filter plate. If the bike was purchased used, the original owner may have rerouted the hose in order to avoid oil getting into the air filter. Find the crankcase breather hose and check to see if it has been plugged by something or has become crimped.

I'm confused by the term "breather valve". I don't know of a breather valve on the engine. If you mean the "breather gear" in the cam chest, this is good as the originals were made of plastic. These would break a tooth off the gear and quit turning. Usually the broken tooth would lock up the oil pump and indicate a problem in the area. However I have seen on occasions that the oil pump was not locked up by the broken tooth and the engine would build up too much pressure inside. I've seen the pushrod tubes start to leak because of this. If I have misunderstood and you have not pulled the "nosecone" on your engine to check the breather gear, that could be your problem as well.

But, do not pull the nose cone unless you know what you're doing. I've fixed several bikes because the owner went to check the breather gear and didn't know what all was involved in doing this. The nosecone would come off about a quarter inch and hang up, would come the rest of the way off and wouldn't go back on either. If you need specific instructions on how to take the "nosecone" off, repost and I'll tell you how to do it. You'll need a pair of tappet block pins to do the job.

Good Luck
Steve

Posted on Nov 16, 2010

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1 Answer

I have a '92 FXSTS that is not my primary ride. When it sits for a long period of time the oil drains from the bag into the crankcase. When started it spews the oil out of the vent.


Hi, David most Harley's with external oil pumps if left sitting for weeks or months will eventually let the oil tank contents drain pass the oil pump check ball and fill up the bottom end of the crankcase when the bike is started the excess oil will gush out of the breather vent and if routed to the air cleaner will also flood the filter. This messy condition will continue until the bottom end is forcibly emptied by the flywheels or manually drained if there is a plug. There are 3 options you may want to consider:
1. Drain the oil tank before storing the bike.
2. Replace check ball and resurface seat in the oil pump.
3. Install inline ball valve shut off in the feed line to the pump.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below and for more specific questions or answers at no charge please feel free to contact me at xlch@mail.com. Good luck and have a wonderful day.
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http://www.carlsalter.com/pdfs/Harley%20Davidson-HD%201984-1998%20FLH-FLHT-FXR-FXSB-FXEF%20Service%20Manual.pdf
http://partsfinder.onlinemicrofiche.com/ronnies/showmodel.asp?make=hdmc
http://www.harley-davidson.com/content/h-d/en_US/home/owners/maintain-your-bike/owners-manual.html
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Why 1992harley pumps oil when cranking over to star


Check your oil tank level. If it is empty or very low, the oil has seeped by the oil pump check valve and has filled the engine cases with oil. I assume the oil is coming out the air cleaner breather tube? If so, add a quart or so to the oil tank, run the breather hose into a can or bottle, and start it up. Oil will flow out the breather until the cases have been purged. When it stops pumping out refill the oil tank to the proper level. This can happen when the bike has been sitting for a few months or more.

Mar 12, 2015 | 1993 Harley Davidson FLSTF Fat boy

1 Answer

1992 Harley Davidson FXR leaking oil around the pushrod tubes


Hi, Anonymous my first guess would be you have a faulty pushrod tube o-ring maybe quad rings were used instead and are not sealing properly or the case breather line is pinched or kinked for this scenario you will need your service manual, parts fiche, and owners manual if you can not find the best tool you ever bought for your Harley, despair not, for a mere zero $0 you can download another one.
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OIl Leak at push rod tube Harley Davidson Forums
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1 Answer

Burning oil on 92 fxrs


Hi Anonymous, and the usual suspects are:
1. Oil tank/pan overfilled.
2. Restricted oil return line to oil tank/pan.
3. Restricted breather operation.
4. Restricted oil filter.
5. Piston rings badly worn or broken.
6. Valve guides or seals worn or crushed.
7. O-ring damaged or missing from oil pump/crankcase junction.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Mar 30, 2013 | 1993 Harley Davidson FXR Super Glide

2 Answers

91Harley FLH, OIL pouring out of breather tube . Whats problem?


Has the bike been sitting for a while? If so, I may have "sumped". This means that oil from the oil tank flowed past the check ball in the oil pump and flowed into the bottom of the crankcase. If the oil level is low, there is a good chance this is what happened. Only way to get the oil out of the crankcase is to run the bike until all the oil is pumped out thru the breather. Place a pan under the breather hose to catch the oil. Eieset way to solve this problem in the future is to place a clamp on the feel line that goes from the oil tank to the pump. Don't run the bike with the clamp in place! Hope this helps.

Oct 01, 2012 | 2000 Harley Davidson FLSTC Heritage...

1 Answer

What could cause excessive oil pressure in the oil tank of an 1988 evo, plug blows out of oil tank, when loose plug is left in oil weeps from tank and caskets have started to leak. I have changed the...


Check your crankcase breather hose. On the '88 model, it originally came from way down low behing the oil pump up to the backside of the air filter plate. If the bike was purchased used, the original owner may have rerouted the hose in order to avoid oil getting into the air filter. Find the crankcase breather hose and check to see if it has been plugged by something or has become crimped.

I'm confused by the term "breather valve". I don't know of a breather valve on the engine. If you mean the "breather gear" in the cam chest, this is good as the originals were made of plastic. These would break a tooth off the gear and quit turning. Usually the broken tooth would lock up the oil pump and indicate a problem in the area. However I have seen on occasions that the oil pump was not locked up by the broken tooth and the engine would build up too much pressure inside. I've seen the pushrod tubes start to leak because of this. If I have misunderstood and you have not pulled the "nosecone" on your engine to check the breather gear, that could be your problem as well.

But, do not pull the nose cone unless you know what you're doing. I've fixed several bikes because the owner went to check the breather gear and didn't know what all was involved in doing this. The nosecone would come off about a quarter inch and hang up, would come the rest of the way off and wouldn't go back on either. If you need specific instructions on how to take the "nosecone" off, repost and I'll tell you how to do it. You'll need a pair of tappet block pins to do the job.

Good Luck
Steve

Nov 16, 2010 | Harley Davidson FXST - FXSTI Softail...

1 Answer

When engine is trying to start or running oil leaks out carburator area. doyou have video for step by step


If your engine has been sitting for a long period of time, your engine is probably "oil sumped". Since the oil tank is located higher on the frame than the engine, if the bike sits for a long period of time, oil will seep past the oil check ball and accumilate in the bottom end of the engine. I've seen the oil tank empty into the bottom end.

Now, the engine on your 93 model is what we call a case breather. The engine's crankcase breaker is located on the engine's cases down low. Later models are called "head breathers" in that the crankcase breathers are located in the rocker boxes, up high. So, even though the oil sumps on the later engine the oil doesn't go into the breather AS BADLY as the earlier models but it still gets in there.

Look on the back of the air breather assembly. There should be a pipe coming from the front of the engine on the timing gear cover on the right side of the engine going to the back of the air cleaner. Temporarily disconnect this pipe. Start the engine and allow it to run for a few minutes. Once the oil stops coming out of the pipe, reconnect it and disassemble the air cleaner. Clean the air cleaner. If the paper air filter is saturated, replace it. Reassemble the air cleaner assembly.

Now, Check the oil. Do not add oil to the engine as long as the oil is visible on the dipstick. Start the engine ride until the engine warms up. Now, with the engine warm, check the oil. The upper line is "Full Hot" while the lower line is "Full Cold". Set the oil level halfway between the lines. Do not overfill. If the bike is going to be sittting for a while, either drain the oil tank or start the engine about once a week and let it run for a few minutes. Do not allow it to overheat.

Good Luck.
Steve

Jun 20, 2010 | 1993 Harley Davidson FLSTF Fat boy

1 Answer

Corolla acceleration drops It runs for 5-10 minutes and then slowly acceleration start dropping and smoke starts coming from somewhere in engine (front left side). I am not sure if fuel pump is gone or...


I would suggest you to check the following

1) Carburetter (Flooding/Linkages/Overflow/Butterfly Vanes)
i) Air-Filter Assy. open and clean, check for leaks/holes
ii) Fuel Delivery System
iii) Fuel Tank for rust/sediments
iv) The grime on the carb can be from regular running and if the carb floods, then gummy petrol smelling deposit.
v) Also Check the Distributor Advance/******.
vi) If there is grime inside the carb, then the air-filter has a leak.

2) For the transfer-case
2A) Check if the oil on the T-Case is gear-oil (sulphur smell) or black/brown Engine Oil.

2B)If it is Engine Oil then you may have a problem with your
i) Crank Case

ii) PCV Valve - Postive Crankcase Ventilation Valve

iii) Main Bearing Seals, this is the worst case, indicated by the clutch becoming slippery i.e engine oil on the clutch pate & Assy.

2A ii) Check and clean the Breather Plugs. If the Plugs are blocked, then while running, the oil heats up and the hot air/gasses cannot escape, thereby creating a High Pressure inside the T-Case and vent through the oil-seals or weaker joints (sealing).

iii) After Cleaning the Breather if there is Gear Oil on the T-Case after running, service the T-Case.


May 08, 2010 | 1995 Toyota Corolla

1 Answer

Where is the oil plug located on a 2005 Harley FXR?


I didn't think Harley made the FXR anymore. I thought they discontinued that bike in 1999 or so. But, just in case, the FXR's oil tank was under the seat. The drain was located at the bottom of the tank on the left side of the bike under the triangluar shaped frame insert.

Now if the bike is and FXD Dyna Super Glide, the oil tank is on the bottom of the transmission. Under the transmission, there are two drain plugs, one is located near the center of the oil pan and this is the transmission drain plug. The engine oil drain plug is located towards the left front of the oil pan. Drain the oil with the bike on the side stand.

To determine the exact model of your bike, search the Internet for the "Harley alphabet" You should be able to find a site that helps you decode your serial number (VIN#) to determine the exact model of your bike.

Good Luck
Steve

Apr 23, 2010 | 2005 Harley Davidson FXD - FXDI Dyna Super...

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