'69 Ironhead oil line routing - The Jockey Journal Board

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Old 09-22-2009, 03:34 PM   #1
Bumpstick
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Default '69 Ironhead oil line routing

I know this has been covered before but I keep running into conflicting info.
I'm gonna use a sportster square oil tank and I just need to know exactly which line goes where. This is the tank I'm using. (there are tanks similar in shape but oulet/inlets are different) I just want to make sure I run the lines correctly so I don't fry the motor. The oulet/inlets (#1-#2) will face towards the front. Where does #3 go?
Any info/do's and don'ts would be greatly appriciated. Thanks, fellas, 'b'



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Old 09-22-2009, 03:41 PM   #2
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Default Re: '69 Ironhead oil line routing

I believe there's a nipple on the oil pump itself for the feed line.
The hose runs down behind and below the sprocket and case to the pump.
Going from memory, so subject to error.
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Old 09-22-2009, 07:16 PM   #3
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Default Re: '69 Ironhead oil line routing

Anyone which goes where? Thanks, 'b'
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Old 09-22-2009, 07:30 PM   #4
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Default Re: '69 Ironhead oil line routing

Looking inside with a flash light will help you some. I am sure one of them is a vent tube. But I am a trump guy so.........
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Old 09-22-2009, 11:50 PM   #5
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Default Re: '69 Ironhead oil line routing

Help! I'm desperate!
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Old 09-23-2009, 06:56 AM   #6
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Default Re: '69 Ironhead oil line routing

Is there a fitting on the top of the tank? If so it should be a small diameter one and that's the vent line. If not the vent line will be the smaller one on the bottom of the tank, look inside like La Dolce said and see if there is a tube running from the bottom up to the top of the tank. One of the fittings on the bottom of the tank (#3) is the feed to (A). The return is (B) and should go to a fitting near the top of the tank? Sometimes you have to seal some of them up, usually the chain oiler. Look at the oil pump and see if there is a nipple on the rear of it for the feed if so you can seal the up and use the feed on top of the case as it serves the same purpose. By using the top feed inlet you will use a shorter hose and it will also be kept away from the front sprocket.

Oh yea, from your pictures it looks like an older sporty motor so make sure the vent on the cam cover is plugged up.

Here is a picture of a 1960's Sporty oil tank the one you are using is 1970's and there are some differences.

Vent line on top of the tank, small 1/4" ID hose.




Return line on the back side near the top of the tank, larger 5/16" ID hose.

Last edited by FDNY37; 09-23-2009 at 01:36 PM.
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Old 09-23-2009, 11:27 AM   #7
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Default Re: '69 Ironhead oil line routing

Thanks FDNY37! The engine I'm using is a 1969 xlch. I have an older tank with the vent on top but want to use this tank because it's in better shape. Any reason I can't? Thanks again for the info. 'b'
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Old 09-23-2009, 01:39 PM   #8
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Default Re: '69 Ironhead oil line routing

You should be able to use it but I'm sorry I'm just not that familiar with 70's lunch pail oil tanks. I would need to have one in front of me to see which way everything would hook up.
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Old 09-23-2009, 04:54 PM   #9
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Default Re: '69 Ironhead oil line routing

3 is the feed to the pump cant remember which is vent and return though. but i know 3 is the feed
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Old 09-24-2009, 08:16 AM   #10
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Default Re: '69 Ironhead oil line routing

Both the vent and return must go to the top of the tank, so both 1 and 2 most likely do so internally.
If the fittings are the same size it probably doesn't matter which is used for which (vent or return).
3 is almost certainly the feed, which goes to the pump.
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Old 09-24-2009, 11:16 AM   #11
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Default Re: '69 Ironhead oil line routing

Thanks everyone. Dumb question #3: Is the feed connected to the pump? 'b'
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Old 09-24-2009, 12:51 PM   #12
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Default Re: '69 Ironhead oil line routing

Bump, read my previous post. The older pumps will not have an inlet on them or it will be plugged. Like I said before on those cases you have the feed to the pump is (A) so you can block off any inlet on the back of the oil pump with a pipe plug (if there is one) and use a short hose to supply oil to the fitting on the top of the case (A). Example - oil line hose from (#3) directly to fitting (A). This will allow you to keep oil line away from the rear chain drive sprocket. (B) is the oil return to your oil tank. The hole just below (B) on the case is for the vent line.
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