Ruttly wrote on Today at 08:34:42: You’re giving it more places for a leak/failure. I think a small braided line with fittings might be less prone to failure over a rubber hose with clamps and would look far better too. My BSAs all have hoses & clamps & leaks ! All my Yamaha SR 500s had upgraded double top end braided lines to the rocker shafts. I’d hate to hear about you having a problem on the road , oil leaks suck Ride Safe.
I share your concerns - I don't want an unreliable bike.
I looked around at AN style fittings - they are all much bigger than I need. The oil bleed/bypass rubber line will essentially have zero pressure, as the restriction is prior to the hose nipple. The only pressure is what is required to move the oil up through the hose to the head cover, and that is likely very small. It takes a rise of around 2.5 feet of oil to make 1psi of pressure....so with the flow the end result is likely less than 2psi in the line.
There is no doubt I will watch this thing carefully as I get the engine running again - hopefully this time without a head gasket oil leak! (Or an oil leak from anywhere else). I am using an official Suzuki head gasket this time, and I am going to put a tiny amount of sealer around the oil port to help make sure the oil doesn't move around in the head gasket.
If the oil bypass hose doesn't work well and I get concerned it is not trustworthy - it can be easily removed and put back to the bypass in the oil filter housing.
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