What is this?
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1st Gear
Joined: Sep 2013
Posts: 5
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From: Eau Claire, WI
What is this?
Can anyone tell me what this thing is that is hanging underneath my 92 FLHS? It does not appear in my manual, does not appear anywhere that I can find in the online microfiche drawings. It appears to be connected via the hose on top to a 90 deg. fitting coming out of the side of the crankcase. The hose coming out of the bottom of this thing may or may not have been the source for a small (maybe 2 in. diameter) spot of moisture on my garage floor.
Could it in any way be related to the fact that my machine was running fine on Sunday, but on Tuesday it was rough starting and the engine ran very roughly?
Could it in any way be related to the fact that my machine was running fine on Sunday, but on Tuesday it was rough starting and the engine ran very roughly?
Road Warrior
Joined: Jul 2012
Posts: 1,566
Likes: 55
From: Londonderry, NH
Can anyone tell me what this thing is that is hanging underneath my 92 FLHS? It does not appear in my manual, does not appear anywhere that I can find in the online microfiche drawings. It appears to be connected via the hose on top to a 90 deg. fitting coming out of the side of the crankcase. The hose coming out of the bottom of this thing may or may not have been the source for a small (maybe 2 in. diameter) spot of moisture on my garage floor.
Could it in any way be related to the fact that my machine was running fine on Sunday, but on Tuesday it was rough starting and the engine ran very roughly?Attachment 385161Attachment 385161
Could it in any way be related to the fact that my machine was running fine on Sunday, but on Tuesday it was rough starting and the engine ran very roughly?Attachment 385161Attachment 385161
Banned
Joined: Sep 2009
Posts: 3,569
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From: deland,florida
it looks like a "pre-filter",their used on drag bikes or customs as a oil filter on the feed line.putting it on the breather wont hurt or help anything.if it is a one way valve,like a PCV valve (some guys will put them on the breather line) it wont hurt anything either
Seasoned HDF Member
Joined: Apr 2013
Posts: 32,851
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From: Newcastle, OK
, and it looks like a filter on the outside surface which is plugged up and needs to be changed.
Seasoned HDF Member
Joined: Apr 2013
Posts: 32,851
Likes: 17,886
From: Newcastle, OK
I have a filter similar to that on my sig bike without a hose on the end of it, but the filter has an inlet ONLY. So, I`m going to assume that it`s crankcase breather, and that the filter keeps out dirt from the road without oil leaking from it.
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