Oil line position question

[Lyndon302]

My 67 911
I had the oil line to the tank at a pretty much horizontal position. It was very close to the heat exchanger and I was about brokerage wrap it. Then I found if I loosened the fittings it neatly does a little loop upwards and and away from the heat. Can anyone see an issue in this position.
Thanks Lyndon

[Flat6pac]

Sometimes you have to curve it away from the exhaust.
Be happy, B&B exhaust on large cubes has metal pipe in the S hose to protect the S hose.
Bruce

[Lyndon302]

Thanks

[gled49]

The hose is just too long, install a drain back valve and adjust hose length.

[Lyndon302]

A drain back valve ?
Lyndon u

[Walt Fricke]

I don't see any problem with this tube being in what you describe as the up position. This isn't going to affect its functioning, which is to get oil under atmospheric pressure in the tank into the oil pump, which is at some level of vacuum.

Rothsport makes a valve which can be inserted into the later model all rubber and hose clamp S hose. It is a valve which closes when the pump isn't supplying some vacuum to the system, and opens when you start the engine because the pump overcomes the weak spring on the valve. Its purpose is to prevent oil from the tank from migrating, when the engine is off, from the tank (where the oil level is higher than that in the engine sump) to the engine sump. As the engine sits, oil slowly drains from the tank into the engine sump. Which is why we have to drain both tank and sump when changing oil, and is why 911s often start with a puff of smoke out the tail pipe.

This valve is not essential. And may not fit the hose you have on this early model. I'm pretty sure the OD of the valve's end pipes are a larger diameter than the ID of your hose (or, your hose is smaller than the later S hose).

You could, if it would fit, use that valve to shorten things. Cheaper to just cut the hose, lop off a little, and use barbed fitting and hose clamps. But I can't see why shortening a hose which does its job just fine would be useful.

[Lyndon302]

I will leave it. It's more complex with the valve. I don't need more things to go wrong. It's has a puff of smoke often. I bet if if paid 300 bucks it still would. It's 54 years old. So it's back to using it.
Thansk lyndon