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RUNWAY13
Samba Member
Joined: November 13, 2024
Posts: 53
Location: Colorado
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 Posted: Tue Nov 11, 2025 11:52 pm Post subject: oil filler breather tube rattling! |
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74 super beetle 1600// the oil filler breather tube jiggles around and rattles. it is the portion that exits the bottom of the oil filler and goes down to the engine tins..is this something major? a major pita to fix or can i wrap metal tap around the tube where it goes through the engine tin and let it ride?
appreciate all the help on this!!
so far:
total rewire w/conversion from gen to alt
removed all egr and computer diagnostics wiring
new brake system front to rear w/disc brakes for front
new fuel system front to rear tank,lines,carb, pump, gage, cvr
new tires
carpet w rear seat area made into open area
lots of other things |
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Bobs67vwagen
Samba Member
Joined: March 27, 2005
Posts: 869
Location: Eastern north carolina
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| Posted: Wed Nov 12, 2025 7:57 am Post subject: Re: oil filler breather tube rattling! |
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| If I remember correctly if you take the oil cap off there is a large slotted fastener in there that could be loose. |
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bsairhead
Samba Member
Joined: October 08, 2008
Posts: 4553
Location: viroqua wi.
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| Posted: Wed Nov 12, 2025 8:11 am Post subject: Re: oil filler breather tube rattling! |
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| Bobs67vwagen wrote: |
| If I remember correctly if you take the oil cap off there is a large slotted fastener in there that could be loose. |
That is the assembly. The tube is brazed to it. |
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chrisflstf
Samba Member
Joined: February 10, 2004
Posts: 4220
Location: San Diego
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| Posted: Wed Nov 12, 2025 11:24 am Post subject: Re: oil filler breather tube rattling! |
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There is supposed to be a grommet, either plastic or rubber for the tube that passes thru the crank pulley tin.
The tube could have a cracked weld at the filler top also |
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vwmerckx 
Samba Member
Joined: August 12, 2012
Posts: 251
Location: Phoenix, AZ
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DrDarby
Samba Member
Joined: May 12, 2004
Posts: 6544
Location: Northern Illinois
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| Posted: Wed Nov 12, 2025 2:11 pm Post subject: Re: oil filler breather tube rattling! |
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A 74 shouldn't have the road draft pipe. It used a larger fitting and a short elbow shaped hose to the paper filter air cleaner. The oil collected was simply returned to the engine.
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Midwest Autosavers, Inc. Crystal Lake, IL |
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busdaddy
Samba Member
Joined: February 12, 2004
Posts: 53188
Location: Surrey B.C. Canada, but thinking of Ukraine
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| Posted: Wed Nov 12, 2025 2:55 pm Post subject: Re: oil filler breather tube rattling! |
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| DrDarby wrote: |
| A 74 shouldn't have the road draft pipe. It used a larger fitting and a short elbow shaped hose to the paper filter air cleaner. The oil collected was simply returned to the engine. |
I thought so too, maybe very early 74?
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Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
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Слава Україні! |
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RUNWAY13
Samba Member
Joined: November 13, 2024
Posts: 53
Location: Colorado
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| Posted: Wed Nov 19, 2025 2:42 am Post subject: Re: oil filler breather tube rattling! |
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Unfortunately, the engine is not original and doesn't have a serial number. So i don't know the specific manufacture year.
I plugged the top opening of the filler tube where the hose is supposed to go to the carb.
i also plugged the opening on the aftermarket air filter where the hose from the filler neck is supposed to be attached.
I have tightened the filler neck! yay! Doesn't rattle!
i am ordering the seal that goes around the bottom of the breather tube where it goes through the engine and will replace it when it gets here.
Now my engine compartment doesn't have the slight oil residue AND the engine still breathes...what a concept!! |
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Bobs67vwagen
Samba Member
Joined: March 27, 2005
Posts: 869
Location: Eastern north carolina
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| Posted: Wed Nov 19, 2025 11:42 am Post subject: Re: oil filler breather tube rattling! |
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| Glad to hear you solved it. Was it the large slotted fitting inside the oil fill that was loose, or was it something else? |
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RUNWAY13
Samba Member
Joined: November 13, 2024
Posts: 53
Location: Colorado
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| Posted: Wed Nov 19, 2025 4:35 pm Post subject: Re: oil filler breather tube rattling! |
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| the slotted nut inside was loose. i need to find a illustrated parts catalog for bugs...lol |
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bsairhead
Samba Member
Joined: October 08, 2008
Posts: 4553
Location: viroqua wi.
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| Posted: Wed Nov 19, 2025 5:13 pm Post subject: Re: oil filler breather tube rattling! |
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| RUNWAY13 wrote: |
74 super beetle 1600// the oil filler breather tube jiggles around and rattles. it is the portion that exits the bottom of the oil filler and goes down to the engine tins..is this something major? a major pita to fix or can i wrap metal tap around the tube where it goes through the engine tin and let it ride?
appreciate all the help on this!!
so far:
total rewire w/conversion from gen to alt
removed all egr and computer diagnostics wiring
new brake system front to rear w/disc brakes for front
new fuel system front to rear tank,lines,carb, pump, gage, cvr
new tires
carpet w rear seat area made into open area
lots of other things |
You need to tell us more precisely. "the oil filler breather tube jiggles around and rattles" The tube is part of the oil filler. So instead of the tube rattling around it was the filler assemble. Glade you got it figured out. |
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