Ironhead oil line routing-a thought

[farmall]

Cool way to avoid standpipes.

I'd control that hard line using aircraft clamps at about the six o'clock position below the sprocket and position of your choice blow the noid and above the kicker shaft to ensure it doesn't chafe the kicker shaft. I like stainless socket head screws with lock nuts (I get 'em via Ebay by the bag) for clamping, and I anti-seize the screws because stainless galls on stainless.

[Todd007]

Resurrecting this one. I understand that the external filter is in the return path. Can someone explain or provide image on how it’s plumbed practically. My ‘70 motor returns from fitting on top of the case, but requires a 180 degree turn to route it back behind the chain cover and under the primary to reach the front mounted filter. Do you make a big sweep turn on the top of case with hose or use a piece of tubing bent to accommodate the back turn? Hope this makes sense. Thanks.


** I know this is discussed often in this forum but I can’t find actual examples of a real world plumb job.

[JB in NC]

Originally Posted by Todd007

Resurrecting this one. I understand that the external filter is in the return path. Can someone explain or provide image on how it’s plumbed practically. My ‘70 motor returns from fitting on top of the case, but requires a 180 degree turn to route it back behind the chain cover and under the primary to reach the front mounted filter. Do you make a big sweep turn on the top of case with hose or use a piece of tubing bent to accommodate the back turn? Hope this makes sense. Thanks.


** I know this is discussed often in this forum but I can’t find actual examples of a real world plumb job.

Quick solution is to bring the return line back to the outside of the rear motor mount on the left side of the frame, and tuck it back inside the lower frame rail below the swingarm pivot area. Then run the line forward inside the left lower frame rail. The primary bulge will hide most of that.

A more elegant solution is to add brass fittings at the return on the case such that the hose nipple is pointing down in front of the drive sprocket. Then the line can run forward on the right side of the frame as you envision.

The oil flow on a spin-on filter is from the outside of the media to the center. So you want the return from the case to enter the filter base on the outer fitting, and the return to the tank to come out of the center of the filter. Many people mess this up; got two tries. Be sure you get it right the first time.

Jim

[Hippysmack]

How's this?

[Todd007]

Thanks for the replies. I incorrectly stated under the primary when I meant under the cam cage side. I prefer the “elegant” solution but might look to running it on primary side. But thanks for confirming that a fitting is needed for cam side routing. Todd.