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Crankcase Breather Labrynth

Posted: 10 Feb 2021 06:21
by Morinioz
Hi there I'm a new member from australia with 75 sport and I only recently realised that there should be a labrynth in the breather hose. Mine hasn't had one since i've owned it and I feel that the slight backpressure may help with top end lubrication. I'm pretty sure they're unavailable but if there's some decent photos of one somewhere i may be able to knock something up myself. What do you people think?
Regards
Graham

Re: Crankcase Breather Labrynth

Posted: 10 Feb 2021 07:33
by Ming
Hello, can't help much, but you might find what you want in a previous post: https://www.google.com/search?q=labyrin ... om%2Fforum

Re: Crankcase Breather Labrynth

Posted: 10 Feb 2021 13:04
by P&S

Re: Crankcase Breather Labrynth

Posted: 10 Feb 2021 15:10
by buzby
Thanks to the Brexiters these might be more expensive than they seem.

Re: Crankcase Breather Labrynth

Posted: 10 Feb 2021 17:33
by 3potjohn
Luckily Brexit wont affect an Australian purchase of these items one assumes. It has not helped us in the UK though.At least I am not trying to export fish.
John

Re: Crankcase Breather Labrynth

Posted: 11 Feb 2021 06:12
by Morinioz
Thanks for the replies. I imagine there's only 1 of these in the breather hose? The guy doesn't sell to Australia but it looks easy enough to make on the lathe. Anyone got a rough length? The rest would be easy to figure out.
Graham

Re: Crankcase Breather Labrynth

Posted: 11 Feb 2021 09:22
by hendre
there was a guy whho 3D printed new MoMo labyrinths... I'll have to figure out where I saw that

Re: Crankcase Breather Labrynth

Posted: 11 Feb 2021 09:38
by hendre
if you have access to a 3D printer: https://myhub.autodesk360.com/ue29ad308 ... 5oAviAC6QA

Re: Crankcase Breather Labrynth

Posted: 11 Feb 2021 09:42
by hendre
from the same FB thread: https://www.facebook.com/photo.php?fbid ... 208&type=3
I asked to have a few but was busy with Covid so forgot to follow up on it. Just sent a messge if they are still available

Re: Crankcase Breather Labrynth

Posted: 11 Feb 2021 14:40
by Mepstein
Morinioz wrote:Thanks for the replies. I imagine there's only 1 of these in the breather hose? The guy doesn't sell to Australia but it looks easy enough to make on the lathe. Anyone got a rough length? The rest would be easy to figure out.
Graham
When I restored my early Sport, there were two in the hose.

Re: Crankcase Breather Labrynth

Posted: 11 Feb 2021 18:11
by P&S
Mepstein is wright, there are two labyrinths in the hose.

Re: Crankcase Breather Labrynth

Posted: 11 Feb 2021 18:48
by Steve Brown
P&S wrote:Mepstein is wright, there are two labyrinths in the hose.
Not always, mine only ever had one. I think I only saw two fitted on later bikes. It will work fine with just one. If you do print up new replacements they would look more authentic in white or something very close to a yellow-ish white :wink:

Re: Crankcase Breather Labrynth

Posted: 12 Feb 2021 04:56
by Morinioz
Thanks so much you guys. Never expected a 3d model, Thanks Hendre :)
I'll make a couple on the weekend
Graham

Re: Crankcase Breather Labrynth

Posted: 12 Feb 2021 08:49
by hendre
could you do a few extra? I need some for my projects :mrgreen:

Re: Crankcase Breather Labrynth

Posted: 12 Feb 2021 10:23
by 'It must be a .....'
Stainless washers with flats silver soldered on a stainless rod?