[kenessex]

JohnnyB,
That is about how I did it on my last 350. I just made up a fitting on the lathe that was long enough that it blocked off the oil passage where it made the 90 degree turn in the clutch cover, then I put the cooler return line in about where you have yours. I wasn't clever enough to think about putting the cooler fittings on top, so I did have to fill the cooler on start up. I didn't notice any issues. I raced that engine for a couple of years after that and didn't have any oil related problems. Dropped valves from over revving and parts falling off aren't oil related are they? I think I need to fit a cooler to my current 350 race engine too. I think I will point the lines up this time.
Ken


AHRMA 412
Vintage racing - old guys on old bikes

 

[kenessex]

Eric,
You can do it to a 350, too. I did one on my first 350 years ago. I have been planning to do another. If I get a chance in the next week or so I will do it and take some photos and post them. The oil flow is out of the center of the centrifugal oil filter into the clutch cover. From there it flows forfard throgh that passage and back into the cases. I tapped into the oil passage wher it makes the 90 degree bend to head toward the center cases. At the time I did it last time I worked at a well equiped shop so I turned a fitting out of aluminum that was long enough that it entered the passage and blocked off the horizontal run and I welded it into the side cover. I am not sure what I am going to do this time but I'll figure out a way to block off the passage between my feed and return fittings. For the return fitting from the oil cooler I just drilled into the passage about half way from the outside of the clutch cover to the gasket mating surface. I tapped the hole and screwed in a fitting to match up with the oil retun line.
I'll try and get to this before I return to Alaska, or it will have to wait until next summer. Sorry about the long post since a couple of pictures would explain it all.

Ken

AHRMA 412
Vintage racing - old guys on old bikes

 

[kenessex]

Hey Johnny, Come to think of it, I don't know in which direction the oil actually flows. I just used that passage to tap into. Does the direction of flow really matter? I have an engine apart on my bench, I'll see what I can figure out.
Ken

AHRMA 412
Vintage racing - old guys on old bikes

 

[kenessex]

Ok here are some pics, I hope.
http://i102.photobucket.com/albums/m96/kenessex/pumpoutlet.jpg
This shows the oil pump and the outlet in the cases. This matches up with the clutch cover.
http://i102.photobucket.com/albums/m96/kenessex/insidecover.jpg
This is the cover.The lower passage is the outlet from the pump . The oil then goes through the oil filter and back into the cover and out the upper passage.
http://i102.photobucket.com/albums/m96/kenessex/oilfittings.jpg
This shows where I drilled into the cover. The brass fittings are just to show location and angle. The angled fitting will block off the passage and is the outlet from the oil cooler and the straight barbed fitting is where the cooler feed will go.
http://i102.photobucket.com/albums/m96/kenessex/coveroilpassage.jpg
This shows the passage that I followed to drill out of the case. It is angled. I will run a tap into this passage and thread it for a brass fitting that will seal the passage.
Drilling this only took about 5 min. I expect to have it drilled tapped and sealed in about 30 min of time. The oil passage is about 5/16 so i will need to make sure my fittings are at least that.

Ken

AHRMA 412
Vintage racing - old guys on old bikes