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Hatterasker
Samba Member
Joined: October 31, 2011
Posts: 250
Location: Pacific Northwest
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 Posted: Sun Sep 08, 2024 12:40 pm Post subject: Solved: Libby bong AND Shopvac adaptor GoWesty coolant tank |
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Has anyone adapted their Libby bong used on the original expansion tank (round threaded) for use on the Gowesty expansion tank (the notched kind)?
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1990 Vanagon Westfalia
Last edited by Hatterasker on Tue Sep 10, 2024 12:44 pm; edited 2 times in total |
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zerotofifty
Samba Member
Joined: December 27, 2003
Posts: 3973
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Hatterasker
Samba Member
Joined: October 31, 2011
Posts: 250
Location: Pacific Northwest
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| Posted: Sun Sep 08, 2024 3:28 pm Post subject: Re: Libby bong for GoWesty expansion tank? |
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Thank you, 0-50. Perfect.
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1990 Vanagon Westfalia |
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miketeevee
Samba Member
Joined: May 20, 2024
Posts: 12
Location: Homestead, FL
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| Posted: Mon Sep 09, 2024 5:21 am Post subject: Re: Libby bong for GoWesty expansion tank? |
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I picked up a kit from Napa. Very easy to use.
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alaskadan
Samba Member
Joined: January 09, 2013
Posts: 1953
Location: anchor pt. alaska
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| Posted: Mon Sep 09, 2024 8:50 am Post subject: Re: Libby bong for GoWesty expansion tank? |
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| I made a libby bong with a large funnel and a piece of 1 1/2" coolant hose that fit the plastic pressure tank. Recently installed a RMW tank. I put a piece of 11/4" hose inside the 11/2" hose that fits into the RMW tank. |
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Hatterasker
Samba Member
Joined: October 31, 2011
Posts: 250
Location: Pacific Northwest
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| Posted: Tue Sep 10, 2024 12:40 pm Post subject: Solution: Libby bong AND Shopvac adaptor GoWesty coolant tank |
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So thanks for the tips. I scored the coolant fill kit you all mentioned, sawed off the old screw top on the plastic reservoir and one end of an extra shopvac attachment. I glued them together and it can be used for both draining and filling.
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1990 Vanagon Westfalia |
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wesitarz
Samba Member
Joined: August 20, 2012
Posts: 1765
Location: Victoria,B.C.Canada
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| Posted: Tue Sep 10, 2024 5:23 pm Post subject: Re: Libby bong for GoWesty expansion tank? |
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| miketeevee wrote: |
I picked up a kit from Napa. Very easy to use.
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It seems to me that this would work as well as a Libby Bong maybe just needing raising the rear a little or DIY extending the funnel so it's near or above the rad bleed. |
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WestwardHo
Samba Member
Joined: March 18, 2021
Posts: 89
Location: Corvallis, OR
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| Posted: Wed Jul 23, 2025 7:34 pm Post subject: Re: Solved: Libby bong AND Shopvac adaptor GoWesty coolant tank |
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For all of you who contributed to my better understanding of the various ways to drain and refill coolant, I thank you. I had some angst as I thought about taking on this job for the first time.
When the local VW shop indicated their process to change the coolant was simply to remove a couple of pipes (not a flush) at a cost of $250 I decided it was worth trying myself.
While my process is not perfect, it felt good to get at least 1/2 the coolant changed.
Steps:
1. Used the shop vac to suck out coolant. Only got 2 gallons but will
repeat the process more regularly.
2. Spent less than $7 to source connectors to fashion my portable air tank
(pics below) to pressurize the system as would be done with GoWesty’s
tool.
3. Drove my Westy for 30 minutes, bled a little air remaining in the system
and all seems good. I’ll drive it one more time to ensure I’ve gotten all
the air out.
Many thanks once again for all the great input on the forum.
Mike
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90 Westy; 2.1 waterboxer; 4 spd; 125K miles, cold a/c |
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