Inherited a 72 FLH. TRYING TO figure some stuff out before I fire it up. I know some guys used to block off the primary oiler. On a stock bike, I think engine oil recirculates through the primary.

If I drop the primary cover, what am I looking for? There is probably a bolt somewhere blocking and oil feed hole. Is that what I'm looking for?

Is there a preferred method? Engine oil versus closed primary? On my other hogs I had belt drives, so I've never dealt with this.

 

Couple of diagrams (from another site). This shows how you would block of the primary for a primary belt set up.





And on a stock set up some oil is scavenged off the oil pump, pushed to the primary to lubricate the chain, and then sucked back into the oil tank through the filter and then recirculated again.

 

That was great. One step closer to firing this baby up!

 

"Is there a preferred method? Engine oil versus closed primary?"

Not really, mostly personal preference. Some folks like the idea of a dry primary (belt) to avoid oil contaminating the engine from oil sucked up from the primary. Oil and filter changes at 2500 mile intervals reduce that. Thing is HD used that system from '65-'84 and there are still a lot of those models on the road using the stock system.

And and if you get the chance, how about a couple of pics of your new Pan?

 

Thanks and working on thee pics. It's a shovel

 

Not to hijack Bill's thread but on those plugs are they 1/8 and 1/16 NPT ? I went back and read some older threads trying to find the size of the plugs I would need to block mine off and couldn't find the size of the rear chain oiler. I'm guessing that if the return line is 1/8 NPT then the rear chain oiler and primary oiler are 1/16 NPT. Would that be correct ?