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Old 09-02-2011, 06:50 PM
Renderw Renderw is offline
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Default Oil Diagram for a 74 sportster (ironhead)

I have the digram for the 78 to 81 but it's not the same.. pump has too many hoses..

does anyone have the older sportsters,

here is the one I have
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Oil Diagram for a 74 sportster (ironhead)-oil.diagram81.jpg  
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Old 09-02-2011, 08:28 PM
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IronMick IronMick is offline
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This one shows the 1976 and earlier oil pump; newer pump has oil return from the front of the pump, not from the top of trans ...

Click the image to open in full size.
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Old 09-02-2011, 10:04 PM
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Here is what the factory service manual has showing the oil connections on the engine.
They mislabeled item #14 and #15 and I have corrected that with my note...........

Click the image to open in full size.

I have never seen an oil diagram from the factory that would read like an electrical wiring diagram.
That is what the examples offered so far attempt to show, but one, they are for models later than 1974, and two, they are confusing (for me) to look at with all the hoses going everywhere. The oil pump was changed sometime in or after 1977, so a 1974 pump is a different animal.
pg
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Old 09-02-2011, 10:28 PM
Renderw Renderw is offline
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Default do I connect the vent lines

I guess my basic question is.. would you connect the engin vent line to the oil tank (vent line)?
or do you let the two lines just vent to ground as I have now.. but I'm loosing alot of oil so I need to figure out how to fix that if they are not connected together..
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Old 09-02-2011, 10:46 PM
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Quote:
Originally Posted by Renderw View Post
I guess my basic question is.. would you connect the engin vent line to the oil tank (vent line)?
or do you let the two lines just vent to ground as I have now.. but I'm loosing alot of oil so I need to figure out how to fix that if they are not connected together..
Did you read my PM I sent you?
The vent on the engine needs a hose connected to it.
The other end of that hose gets connected to the oil tank vent nipple on the oil tank.
Under no means should either vent be allowed to drip onto the ground. They must be connected together using a hose.
pg
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Old 09-02-2011, 10:54 PM
Renderw Renderw is offline
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I'll set this up tomorrow

Thanks again
Will

QUOTE=piniongear;8773555]Did you read my PM I sent you?
The vent on the engine needs a hose connected to it.
The other end of that hose gets connected to the oil tank vent nipple on the oil tank.
Under no means should either vent be allowed to drip onto the ground. They must be connected together using a hose.
pg
[/QUOTE]
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Old 09-02-2011, 10:54 PM
 
 
 
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74, 78, davison, diagram, engine, harley, hoses, ironhead, line, oil, return, schematic, sporster, sportser, sportster, wiring, xlch


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