Blanking off the oil return to sump

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Wizzle
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Joined: Wed Jun 07, 2023 8:29 am
Location: Warwickshire

Blanking off the oil return to sump

Post by Wizzle » Mon Aug 26, 2024 6:42 pm

Evening all

I’m attempting to plumb in the engine at the moment, and I’m looking at the breather/oil return system.

I’ve noticed several people have done away with the original plastic box, either for a nicer version from Alan or the cheap catch-cans available from the sites that take all our money in the name of our hobby. Indeed, a couple of people strongly recommended using a pair of cans instead, and I have a pair at the ready.

The question is - what do you do with the pipe that returns oil to the sump, if your catch-cans aren’t connected? Is it ok to just blank it with a plug somehow, or does it need to be vented?

Currently my plan is to put a pancake filter on the breather from the throttle bodies and run the head breather pipes back to a can on each side, but that leaves the sump connector looking a bit… dangly….

What has anybody else done with it?

Alex

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Throwley
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Location: Olney, Bucks

Re: Blanking off the oil return to sump

Post by Throwley » Tue Aug 27, 2024 9:24 am

It's blanked on mine. I run a simple vent system with just crankcase pressure through the standard vent Non Return Valve and piped away. And keep a regular check on oil level.

Wizzle
Posts: 31
Joined: Wed Jun 07, 2023 8:29 am
Location: Warwickshire

Re: Blanking off the oil return to sump

Post by Wizzle » Tue Aug 27, 2024 10:27 am

Thanks Throwley. What have you blocked off the sump inlet with?

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Throwley
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Location: Olney, Bucks

Re: Blanking off the oil return to sump

Post by Throwley » Wed Aug 28, 2024 7:53 am

A stub of fuel hose with an Allen bolt rammed in the end of it, hose-clipped to the spigot on the crankcase!

Such a cheapskate solution that I was hoping you weren't going to ask ;-)

Wizzle
Posts: 31
Joined: Wed Jun 07, 2023 8:29 am
Location: Warwickshire

Re: Blanking off the oil return to sump

Post by Wizzle » Wed Aug 28, 2024 8:18 am

Haha! That’s my kind of solution, thank you! I just wanted to check someone else had done that too!

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