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17th August 2009
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Senior Chief Know It All
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Join Date: Sep 2008
Posts: 857
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Ok where is the oil?
I recently changed the oil in my 65 xlh. For some reason, I did not put any in the primary side. I have read in the manual that it shares the same oil as the crank case. (A common sump). I guess I assumed that it would use the oil in that. Went for a nice 30 mile ride and its noisey as all get out. I guess there wasnt a whole lot of oil in the primary side. Doesnt seem to have damaged anything but Im going to pull it down anyway.
Does a 1965 XLH use the same oil and does it get it from the common motor oil in the engine, or do I have to add it to the primary side as well? Some guys are using a heavy HD Primary oil. Should I be using that and if so, will it mix with the engine oil and cause some sort of damage?
randy
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17th August 2009
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Senior Master Custom Bike Builder
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Join Date: Jan 2007
Location: Heart of Dixie
Posts: 5,950 Sportster/Buell Model: XLX-61 Sportster/Buell Year: 1983 Other Motorcycle Model: Honda CL350 Other Motorcycle Year: 1969
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Ouch... 
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I never wanted a Harley, but I always wanted a Sportster.
If it ain't broke, don't fix it (especially if you don't know what you're doing). Most Sportster problems are owner-induced.
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17th August 2009
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Senior Chief Know It All 2nd Class
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Join Date: Jul 2009
Posts: 1,406 Sportster/Buell Model: XLH Sportster/Buell Year: 1972 Sportster/Buell Model #2: Yamahahaha Sportster/Buell Year #2: 2000
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Quote:
Originally Posted by cajun1957a
I recently changed the oil in my 65 xlh. For some reason, I did not put any in the primary side. I have read in the manual that it shares the same oil as the crank case. (A common sump). I guess I assumed that it would use the oil in that. Went for a nice 30 mile ride and its noisey as all get out. I guess there wasnt a whole lot of oil in the primary side. Doesnt seem to have damaged anything but Im going to pull it down anyway.
Does a 1965 XLH use the same oil and does it get it from the common motor oil in the engine, or do I have to add it to the primary side as well? Some guys are using a heavy HD Primary oil. Should I be using that and if so, will it mix with the engine oil and cause some sort of damage?
randy
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Answer: Two separate systems. 3QTS in the tank for the crankcase, and 24oz or 1.5 pints for the primary.
Hint: Get a FSM or equivalent.
Good reading: http://xlforum.net/vbportal/forums/s...88#post1959688
I would do a total tear down on the primary side, and check the friction plates very well.
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I gave up smoking, drinking and sex.
It was the worst fifteen minutes of my life.
RIP: Eli
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17th August 2009
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Master Custom Bike Builder
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Join Date: Mar 2008
Posts: 3,327 Sportster/Buell Model: XLCH Sportster/Buell Year: 1969 Sportster/Buell Model #2: 1966 XLCH Other Motorcycle Model: BMW Twin Other Motorcycle Year: 82
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Never Assume, You can use the same Oil but must fill the Primary side as per the proper capacity.. I use 60W on motor and trans.. Get a Service Manual........
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17th August 2009
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Master Custom Bike Builder
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Join Date: Mar 2006
Location: Athens, GA
Posts: 3,170 Sportster/Buell Model: XLCH Sportster/Buell Year: 1962
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The primary and crankcase may be separated. There is a factory transfer valve between the two that may have been sealed off, a thousand different ways. Or not. A lot can happen in 45 years...
The only way to know is to go in and look. Never assume the primary is oiled by the engine. The transfer valve allows the oils to mix, but the design is not intended to purposely lubricate the primary. A lot of people will separate the two, so that engine oil and primary oil don't mix. If that is the case, separate oils can be used in the engine and transmission.
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17th August 2009
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Senior Chief Know It All
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Join Date: Sep 2008
Posts: 857
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GA thanks. I do know the transfer valve is still there. Ive always wondered why anyone would put a primary lube in the primary side if the transfer valve allows them to mix. Would that not destroy the engine oil if that happened. The book says that the oils are the same yet others use engine oil in the block and primary lube in the primary.. Whts your take on this
randy
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17th August 2009
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Land Speed Record
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Join Date: Dec 2004
Location: SoCal
Posts: 735 Sportster/Buell Model: XLH Sportster/Buell Year: 1976 Sportster/Buell Model #2: XLH Sportster/Buell Year #2: 1979
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If the transfer valve is still in place, use the same oil in the motor and primary. If the transfer valve is plugged, use what ever makes you feel good. Either way change the oil regularly for best results.
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Skeeeter
'76 XLH - 4 5/8" Stroker, Andrews V-9 cams, S&S Super 'E' and Barnett Billet Scorpion Clutch plus some cosmetic stuff
'79 XLH - Mostly stock except for cosmetics (for now!)
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17th August 2009
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Senior Chief Master Mechanic 1st Class
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Join Date: Jan 2008
Location: Down the Shore
Posts: 1,274 Sportster/Buell Model: XLH-1000 Sportster/Buell Year: 1975 Other Motorcycle Model: Honda Spree Other Motorcycle Year: 1987
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The transfer valve is more of a breather than a oil transfer port. It is not meant to transfer oil from the crank to the primary. If allot of oil does transferrs through the valve from the crank to your primary it is broken and needs to be replaced or plugged as some do here.
I hope you didnt get too much damage.
Chris
Chris
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It’s not really your bike unless you work on it yourself!
"Believe nothing, no matter where you read it, or who said it,
no matter if I have said it, unless it agrees with your own
reason and your own common sense."
-Buddha (536 B.C.-483 B.C.)
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17th August 2009
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Master Mechanic
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Join Date: Jul 2009
Posts: 269 Sportster/Buell Model: XLS1000 Sportster/Buell Year: 1982 Other Motorcycle Model: BSA 650 chopper Other Motorcycle Year: 1970
Reputation: 96
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The oil transfer valve allows oil from the crankcase to enter the primary side only if you have excess oil, or pressure in the crankcase.
Excess crankcase pressure from worn rings, or valve guides. Excess oil from the oil pump check valve seeping, or from other wet sumping problems.
If you plug the oil transfer valve, and still have the excess oil, or the excess crankcase pressure problem, then the oil will end up going out the breather pipe instead of going into the primary.
My brother always had to add to his oil tank, but drain about the same amount from the primary.
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17th August 2009
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Rider Of The Iron Steed
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Join Date: Dec 2003
Location: London, ON Canada
Posts: 23,708 Sportster/Buell Model: XLH Sportster/Buell Year: 1978
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It seems that "oil transfer valve" is incorrect terminology. Can someone look this up in a parts book and post the actual correct name and part number please.
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