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mikemtnbike
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Joined: March 26, 2015
Posts: 2798
Location: North Carolina
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 Posted: Tue May 26, 2020 8:13 am Post subject: Re: Cooling system change & Flush UPDATE |
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Remove the spare tire and then remove the coolant hoses from the long pipes. This is about the lowest point you can drain from. I use a short rubbermaid tote to drain into because it's wide enough to catch almost all the coolant and minimizes my getting doused.
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1991 Vanagon GL 2.1 AT Westfauxlia. "Frankie" Totaled  https://www.thesamba.com/vw/forum/viewtopic.php?t=764510&highlight=carnage
1995 Eurovan Camper "Marzivan"
2020 GTI SE manual |
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vanaglobal
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Joined: January 26, 2016
Posts: 50
Location: NYC
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| Posted: Tue May 26, 2020 8:09 am Post subject: Re: Cooling system change & Flush UPDATE |
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VicVan,
Thanks, yeah I tried to get at the drain plugs but the top bolts on that guard plate are hard to get to and also rusty(seized)... I would rather not mess with it if I don't have to... Any other suggestions?  |
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VicVan
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Joined: July 01, 2015
Posts: 1845
Location: Vancouver Island, BC
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| Posted: Mon May 25, 2020 3:32 pm Post subject: Re: Cooling system change & Flush UPDATE |
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Unscrew the drain plugs under the cylinder heads, one on each side. YOu have to remove the pushrod covers to access them.
Drain at a low point, for example disconnect the rubber hoses at one end of the coolant lines, depending on the incline your van is on. To create an incline, you can put it up on jackstands for a few minutes.
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'90 Little Blue Truck, 2WD auto, FAS GenV 2.0 NA (AVH) |
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vanaglobal
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Joined: January 26, 2016
Posts: 50
Location: NYC
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| Posted: Mon May 25, 2020 1:07 pm Post subject: Re: Cooling system change & Flush UPDATE |
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Hey guys,
Thanks for the tips!
Flushing my radiator.
I tried the shop vac method and it worked great but I'm sure there's more in there... I got about 2.5-3 gallons out, but the manual says theres over 4 gallons in there. Any recommendations on how to the rest out?
Thanks! |
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purplepeopleeater
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Joined: July 23, 2005
Posts: 3117
Location: E. Washington
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| Posted: Sat Dec 13, 2014 8:11 am Post subject: |
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| dixoncj wrote: |
| randywebb wrote: |
re: "I used some 1/4'' tubing and stuffed it down the breather hole and stuck the other end in a jug of clean distilled water, I sucked about 4 gallons through the system this way."
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Man, I am SOOO doing this when I get my new water pump on.
What a great fricking idea. Wonder if you could just do the same thing with an adaptor on the garden hose? |
late reply, but yeah that would work...you would have to support extra weight of the hose. |
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dixoncj
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Joined: June 17, 2004
Posts: 1083
Location: Charleston, SC
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| Posted: Mon Oct 20, 2014 6:18 pm Post subject: |
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| randywebb wrote: |
re: "I used some 1/4'' tubing and stuffed it down the breather hole and stuck the other end in a jug of clean distilled water, I sucked about 4 gallons through the system this way."
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Man, I am SOOO doing this when I get my new water pump on.
What a great fricking idea. Wonder if you could just do the same thing with an adaptor on the garden hose? |
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Jamo7
Samba Member
Joined: September 25, 2014
Posts: 124
Location: Seattle
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| Posted: Mon Oct 20, 2014 2:11 pm Post subject: Cooling system clean and flush update |
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Hi Everyone,
I shop vac'd out my cooling system via the expansion tank per the "Draining coolant with a shop vac- with pics" post and I am prepared to add water for a day to flush and then add coolant with my "Libby bong".
However I only removed about 2 gallons from the system with the shop vac. The heater switches are turned to high, the fan is on max, the back heater is on high, and I heard air and felt suction from the radiator bleeder hole. Is the 2 gallons enough? I thought there were approx 4 gallons in the system. Should I hunt for the rest? If so, any recommendations for getting the rest?
Thank you for your wisdom!
James |
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kuleinc
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Joined: August 10, 2007
Posts: 1604
Location: East Bay Area, California
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kamzcab86
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Joined: July 26, 2008
Posts: 7930
Location: Arizona
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insyncro
Banned
Joined: March 07, 2002
Posts: 15086
Location: New York
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| Posted: Tue Sep 11, 2012 12:21 pm Post subject: |
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| kuleinc wrote: |
| I'm more worried about coolant choice than procedure.... |
Flush every tow years and it really doesnt matter.
This has been covered about as much as tires.
Do a search |
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kuleinc
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Joined: August 10, 2007
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Location: East Bay Area, California
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Ahwahnee
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Joined: June 05, 2010
Posts: 9811
Location: Mt Lemmon, AZ
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| Posted: Tue Sep 11, 2012 10:42 am Post subject: |
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Must be 50 ways to do this -- all seem to work but it is easy to over-think the problem.
On my 84 I added a 'tee' in one of the heater hoses to aid the gravity drain. I refill using an electric pump thru the pressure cap until it comes out of the radiator bleed.
So long as everything is open (heaters & that extra bleeder on the engine) it empties and fills well with maybe 8 oz of top-up required after a couple of hot runs. |
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insyncro
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Joined: March 07, 2002
Posts: 15086
Location: New York
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| Posted: Tue Sep 11, 2012 8:09 am Post subject: |
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Gravity drain the system.
Fill with water, bleed and run for a day.
Drop the water and fill with a coolant mixture of your choice.
Not hard to do at all. |
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kuleinc
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Joined: August 10, 2007
Posts: 1604
Location: East Bay Area, California
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| Posted: Tue Sep 11, 2012 7:48 am Post subject: |
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I might be tackling this soon, I hope the shop vacuum bleeder has an adapter that fits my tank, that would make it oh so easy!
I'm thinking of using some Pentosin G 001 100 (G11?) in the cooling system. This is my first coolant flush, and whats in there is nasty. If I'm doing it wrong, please, don't be shy.
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http://www.thesamba.com/vw/forum/viewtopic.php?t=496946 1987 VW Vanagon Westfalia with 1.8T |
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Tooharsh
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Joined: February 22, 2012
Posts: 92
Location: Waynesboro, PA
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| Posted: Sun Mar 04, 2012 11:41 am Post subject: |
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I know I saw somewhere before about using a specific type of coolant. I can't find it again. So, could some one give me a run down of what type to use and whatbthenreson is behind using this specific type? Or feel free to point me to a link, I looked around and could not find what I was looking for...
Thanks
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1984 Vanagon Tin Top, 69,000 miles, Manual Transmission. |
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240Gordy
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Joined: May 15, 2008
Posts: 2354
Location: Vancouver, BC
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| Posted: Sat Mar 20, 2010 1:27 pm Post subject: |
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| randywebb wrote: |
re: "I used some 1/4'' tubing and stuffed it down the breather hole and stuck the other end in a jug of clean distilled water, I sucked about 4 gallons through the system this way."
- any closeup pics of the insertion point?
- also, would you do it that way again? |
Take the breather screw out of the rad and insert the tubing there. But it is only flushing 1/2 the system that way, or maybe not, the vacuum probably sucks the water both ways . . . unless something stops it from going backwards?
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randywebb
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Joined: February 15, 2005
Posts: 3815
Location: Greater Metropolitan Nimrod, Orygun
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| Posted: Sat Mar 20, 2010 1:19 pm Post subject: |
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re: "I used some 1/4'' tubing and stuffed it down the breather hole and stuck the other end in a jug of clean distilled water, I sucked about 4 gallons through the system this way."
- any closeup pics of the insertion point?
- also, would you do it that way again? |
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squeegee_boy
Samba Member
Joined: April 27, 2008
Posts: 762
Location: Langley, BC, Canada
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| Posted: Sat Mar 20, 2010 11:52 am Post subject: |
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| klucz wrote: |
| squeegee_boy - 'cooling system service, test and refill tool' should improve your fu. Can't remember the brand of the one we used but it wasn't a cheapo kit. |
Thank you, sensei!
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1984 FrankenSyncro Westy. EJ25 RMW kit
1971 Super Beetle with an EJ22. Oh yes. Daily driver |
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klucz
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Joined: February 14, 2006
Posts: 1062
Location: Chicago, IL
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| Posted: Sat Mar 20, 2010 10:24 am Post subject: |
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squeegee_boy - 'cooling system service, test and refill tool' should improve your fu. Can't remember the brand of the one we used but it wasn't a cheapo kit.
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squeegee_boy
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Joined: April 27, 2008
Posts: 762
Location: Langley, BC, Canada
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| Posted: Sat Mar 20, 2010 10:04 am Post subject: |
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Klucz and Alaric, what's that tool called? I want one, but my Google-fu is failing me.
Robyn
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1984 FrankenSyncro Westy. EJ25 RMW kit
1971 Super Beetle with an EJ22. Oh yes. Daily driver |
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1990 Vanagon Westfalia: