Crankcase breather pipe and belt primary

Bottom End (crankcases and crankshaft)
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64duo
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Crankcase breather pipe and belt primary

#1

Post by 64duo »

My 64FLH has a belt primary. The case breather pipe is kinda broken at the elbow, and leads nowhere right now. I think this has been the source of a hell of a mess downwind along wiring, trans, etc. Couple questions.
1) Can i just remove the nut holding that in on the right case side and remove the pipe without anything bad happening, including dumping the case oil on the ground.
2) How is that suppose to hook up to the inner primary? if that is where it goes?
3) Given belt primary, can I just route a hose line from tube out the back somewhere to control the mist or ooze?
Thoughts? Thanks in advance
Jonathan
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Re: Crankcase breather pipe and belt primary

#2

Post by mbskeam »

hello,

answers to questions

#1 yes, not a problem

#2 the tube bends 90 deg. into the primary or is straight in depending on the year.

#3 yes, run it to mist your rear chain

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Re: Crankcase breather pipe and belt primary

#3

Post by 57pan »

64duo,

I'm in the process of changing to a belt drive and planned to put a hose on the breather and route it back out thru a hole in the inner primary cover. My concern was that the hose would kink and restrict the breather so I inserted a screen door spring inside the hose to keep it from collapsing. Here is a pic:

Image

I haven't quite figured out what to do with the other end of the hose, but will probably put an engine breather filter on it and let it vent under the bike somewhere.
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Re: Crankcase breather pipe and belt primary

#4

Post by King »

57 Pan

Thanks for the excellent tip and picture. That is a very clean solution to the problem. Is the wood block fastened to the inner primary?

King
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Re: Crankcase breather pipe and belt primary

#5

Post by sleeper »

57 Pan-

Good idea, w/the spring.. "Nice job"
I see at least 2 options for the end of the hose.
(1) Adding a filter breather & let it hang
(2) route it at the rear chain w/filter breather.

#2 will help the R. chain some anyway..
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Re: Crankcase breather pipe and belt primary

#6

Post by 64duo »

This is what I have to work with. I suppose no sense replacing the pipe if it is just gonna get vented straight back & out as Mike suggested, perhaps misting the chain and not the whitewall.
Jonathan

Image
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Re: Crankcase breather pipe and belt primary

#7

Post by mbskeam »

hello,
hell you got plenty of tube , put a hose and clamp on it and run it to the place that best suits you.
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Re: Crankcase breather pipe and belt primary

#8

Post by 57pan »

57 Pan

Thanks for the excellent tip and picture. That is a very clean solution to the problem. Is the wood block fastened to the inner primary?

King

Yes, it's held on with two screws from the back.
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