Skip to main content
Gerry | Vanagon
Checking account...
← vanagon.com home · Continue the discussion in the forum
VanagonEuroVan

Search messages and discussions

Clear search

Search preserved mailing-list messages and current email and website contributions. Current posts are searchable before weekly archival. Recovery gaps remain possible. Words are matched together; try fewer terms if needed.

Page 7+: 60 results shown for Pressure cap.

Source-balanced relevance: matches from both collections are interleaved, with source dates breaking ties. Restoration time is not the original posting date.

  • Re: home made pressure bleeder
    Historical mailing list - David Kao
    Thu, 12 Mar 2009 10:18:13 -0700
    ...The bottle need to be re-sealable by capping off the fittings and the cap so that the brake fluid will not absorb moisture...
  • Re: Expansion tank under pressure when cold?
    Historical mailing list - Dan N
    Wed, 17 Feb 2016 10:01:51 -0800
    ...There always some residual pressure in the cooling system and it will come near zero if you wait long enough... I let it sit...
  • Thought problem for Friday
    Historical mailing list - Stuart MacMillan
    Fri, 16 Mar 2018 09:25:39 -0700
    ...change in frequency with pedal pressure. Any ideas why LED brake lights might cause this? Maybe install a capacitor on the radio like this...
  • Cooling question
    Historical mailing list - Al Ferguson
    Sat, 24 Mar 2001 19:21:48 MST
    ...the pressured reservoir is not sucking the fluid out of the non-pressured reservoir? I have replaced the radiator pressured reservoir cap with two...
  • Re: interesting site about coolant
    Historical mailing list - Jack
    Sat, 28 Apr 2007 16:15:01 -0800
    From the 2nd paragraph of the referenced doc, "The coolant bottle and cap help maintain pressure on this system, keeping it sealed from pressure...
  • Re: AARGH! Failed NJ inspection!
    Historical mailing list - Hans Vanhethoen
    Thu, 24 Jul 2003 11:24:08 -0400
    You will need a non locking cap because the locking type will not hold the air pressure test. Most parts stores will have one .
  • Re: Coolant top up and headlamps loose
    Historical mailing list - mark drillock
    Sun, 8 Sep 2013 15:04:56 -0700
    ...That >> builds pressure in the system from heat expansion as the coolant warms. >> The cap has to be closed tight and able to hold...
  • Re: Discovered Crack in Expansion Tank
    Historical mailing list
    Sun, 16 Aug 1998 22:36:29 EDT
    ...flush and fill? Can the cap be the > culprit? I should think that the cap should allow the pressure to be > relieved ie to...
  • Re: Gurgling rad?
    Historical mailing list - Dennis Haynes
    Mon, 30 May 2016 23:40:46 -0400
    You should get some tools for pressure testing the cooling system and the cap. As a quick test with the system full shortly after...
  • Re: cooling system hose clamps
    Historical mailing list - Mark McCulley
    Thu, 22 Sep 2022 14:40:39 -0700
    ...He pronounced the cap as being OK. That seems a bit slow to me to get the pressure down but I have no idea...
  • Re: Tire Pressure - Hankook RA08 185R14C
    Historical mailing list - Craig Cowan
    Wed, 29 Aug 2012 23:53:28 -0400
    ...Note that for passenger car tires and XL versions increased pressures do not mean increased capacity. Full capacity is often reached at 35 psi...
  • More 2.1L coolant sys woes
    Historical mailing list - Ken Lewis
    Sat, 1 Jan 2005 07:40:28 -0500
    ...Do not tamper with you pressure caps, you are wasting your time. The second time I had this problem I also tried the NAPA...
  • Re: Aluminum coolant tanks. Why?
    Historical mailing list - Mark McCulley
    Sat, 24 Jul 2021 07:26:37 -0700
    ...The metal based tanks are much more > tolerant and so is the pressure cap. In addition the standard design cap > used with these tanks...
  • odd thing:boiling over?!!?
    Historical mailing list - Donald Woolard
    Wed, 24 Sep 1997 08:08:55 -0700
    BUSLADY, Check the caps on the water containers behind the rear plate. The expansion tank has a pressure sensitive cap which went out on...
  • Re: 80 d Thermostat rocks
    Historical mailing list - Ben huot
    Fri, 13 Sep 2002 01:01:50 -0400
    ...First change the cap and see!!!! (could be it!!! yes that could be your only problem, IN and OUT pressure) Second, have (or do...
  • Re: New vanagon leaking coolant
    Historical mailing list - Kevin C
    Thu, 27 Jan 2005 17:04:40 EST
    ...Hook a bike pump with a gauge up to your pressure tank. I use the hose going to the pressure cap and just put...
  • Re: Coolant Reservoir Boiling
    Historical mailing list - Scott Ohana
    Tue, 23 Jul 2013 11:21:27 -0700
    ...Coolant Reservoir Boiling > > > 82 Diesel Vanagons don't havethe blue plastic pressure bottle caps.. > they have a very normal conventional pressure cap ....like what...
  • Re: Gas Pressure Gauge
    Historical mailing list - David Schwarze
    Wed, 1 Nov 1995 12:46:08 -0800 (PST)
    Vahid Lajevardi writes: > > I would like to get a pressure gauge to measure the gas pressure after > the fuel pump and before the pressure...
  • Re: Brake question
    Historical mailing list - Karl Mullendore
    Wed, 21 Oct 1998 23:43:30 EDT
    ...Release the pressure from the sprayer tank,disconnect,and replace the original cap.Hope this is helpful,have fun! Karl
  • home-made pressure bleeder
    Historical mailing list - Troy
    Tue, 10 Mar 2009 16:41:50 -0800
    I too made one of these up last summer, works great! Think I got the cap from the Bus Depot and the rest from...
  • Re: Baum tool order...
    Historical mailing list - Tom L. Neal
    Mon, 30 Aug 1999 16:01:14 -0700
    > - Cooling system adapter (adapts my pressure tester to the VW exp. tank > and cap) Found this, in stock, at the local "super Napa" store...
  • Re: Cooling System: Strange Phenomenon
    Historical mailing list - Michael A. Radtke
    Tue, 19 Oct 1999 09:59:32 -0700
    Eric, It could be the expansion tank pressure cap. I've replaced 3 in 110,000 miles. Mike '84 GL '58 Isetta '60 Vespa...
  • Testing the cooling system Re: How Hot is To Hott?
    Historical mailing list - --------
    Fri, 27 Jul 2007 07:13:56 -0400
    ...ALL cooling systems (today) are pressureized and must hold pressure. 2 - Second, are you boiling over? The pressure cap is the untimate device that...
  • Re: weird smog rule
    Historical mailing list - Ben T
    Wed, 13 Nov 2002 22:13:27 EST
    ...now checks gas caps for pressure? total weirdness if you ask me it can fail the test if your cap has a micro crack...
  • Re: Blam! Bleeder valve destruction and some other thoughts!
    Historical mailing list - Eric Caron
    Wed, 29 Mar 2023 22:52:36 -0400
    ...After working on this for many hours I discovered that the pressure cap that came on the new expansion tank was defective, it didn...
  • Re: Blam! Bleeder valve destruction and some other thoughts!
    Historical mailing list - Eric Caron
    Thu, 30 Mar 2023 07:49:50 -0400
    ...After working on this for many hours I discovered that the pressure cap that came on the new expansion tank was defective, it didn...
  • Re: Blam! Bleeder valve destruction and some other thoughts!
    Historical mailing list - David McNeely
    Wed, 29 Mar 2023 19:55:26 -0700
    ...After working on this for > many hours I discovered that the pressure cap that came on the new > expansion tank was defective, it didn...
  • Re: WTB Coolant pressure tester
    Historical mailing list - Larry Alofs
    Wed, 27 Feb 2008 17:19:39 -0600
    ...Push the hose onto the nipple of the pressure cap on > the expansion tank. Voila! Instant coolant system pressure tester that > can also be...
  • Re: Cooling system woes
    Historical mailing list - Malcolm Stebbins
    Fri, 14 Dec 2001 12:04:34 -0400
    My experience with coolant problems leads me to believe that the cap on your coolant reservoir tank is not holding pressure. As long as...
  • Re: Air conditioning - 1988 GL 2.1 WBX
    Historical mailing list - KIM BRENNAN
    Sun, 19 Jun 2016 13:21:03 -0400
    ...is the high pressure service port on this rig? The low pressure > service port was obvious with a blue cap as the result of...
  • Excessive fuel tank pressure
    Historical mailing list - Stephen Engel
    Tue, 14 May 2013 20:16:02 -0400
    My 87 Syncro GL 2.1 WBX releases way too much pressure, I believe, when the fuel filler cap is opened. It may be...
  • Re: head gasket problem ?
    Historical mailing list - John Rodgers
    Sat, 22 Sep 2001 11:35:31 -0500
    ...When the pressure of the expanding coolant reaches that pressure setting of the pressure cap, the valve opens, allowing the expanding coolant to overflow...
  • Wierd coolant overflow problem......help needed.
    Historical mailing list - Vanagon Man
    Tue, 2 Sep 2003 04:59:47 -0500
    ...I replaced radiator, lower temp thermoswitch for fan, ballast resitor for fan, and lower temp thermostat, new pressure cap. Needle still ran 3/4...
  • Re: head gasket problem ?
    Historical mailing list - Malcolm Stebbins
    Fri, 21 Sep 2001 14:54:55 -0300
    ...the coolant cap does NOT (and SHOULD not) open (to relieve that pressure) till the van begins to overhead! then the cap lets go...
  • Re: Tires again!
    Historical mailing list - ralph meyermann
    Tue, 26 Jul 2011 10:31:25 -0600
    ...When VW selected a tire that could be inflated well above the GAWR, they chose lower inflation pressures that brought load capacity down to...
  • Re: Removing radiator bleeder screw
    Historical mailing list - Allan Streib
    Mon, 13 Oct 2008 10:20:07 -0400
    ...the system is pretty well filled and you have replaced the > pressure cap. When things get warm, the system will pressurize enough to > push...
  • I'm making a DIY pressure bleeder... will a Volvo brake resv. cap work?
    Historical mailing list - Kai Mei
    Thu, 29 Nov 2007 22:30:32 -0500
    Happen to have an extra. Currently not owning a vanagon, so I can't do the obvious. Thanks.
  • Re: Cooling System Pressure Gauge
    Historical mailing list - David Beierl
    Thu, 1 Feb 2001 18:10:39 -0500
    I think this needs work -- cooling system pressure ranges from a slight vacuum to close to 15 psi when the cap starts venting. All...
  • Re: Filling the coolant reservoir...
    Historical mailing list - Dan N
    Tue, 26 Apr 2016 11:20:54 -0700
    ...I am sure he's thinking as modern car with the radiator and a filling tank with no pressure cap and no expansion tank...
  • Re: Pressure bleeding brakes?
    Historical mailing list - Chuck Mathis
    Sat, 10 Aug 2002 19:10:48 EDT
    ...What you get is essentially a short garden sprayer with a pressure gauge on the tank and a cap on the end of the...
  • Re: Cooling System Weirdness
    Historical mailing list - Lawrence Johnson
    Sun, 11 Jun 2000 09:00:21 -0400
    Marc, I suspect that the cap on the expansion tank is either plugged or damaged and is not opening at the correct pressure (14...
  • Adding oil pressure and temp gauges?
    Historical mailing list - Michael Elliott
    Sun, 24 Jun 2007 15:40:06 -0700
    Can anyone recommend the bits I'd need to buy to add oil pressure and oil temp gauges to Mellow Yellow? A one-vendor...
  • Re: A Different Coolant Problem
    Historical mailing list - Tom Carchrae
    Mon, 9 Sep 2013 12:29:06 -0700
    ...I believe you can do a quick and dirty test of the pressure cap by simply squeezing the coolant hoses after the van has...
  • Re: Fw: Uh oh....No coolant in the tank
    Historical mailing list - John Rodgers
    Sat, 14 May 2005 11:14:51 -0500
    ...I would pressure test the cooling system and see what happens. A pressure cap is cheap enough, and the hose is even cheaper. So...
  • Re: Coolant bottle harbinger - opinions?
    Historical mailing list - Greg Potts
    Sat, 26 Jun 2010 12:31:24 -0400
    ...pressure cap and here's what I find: > a) gunk in the cap http://www.flickr.com/photos/el_pedro/4735834940/ > b) pressure bottle...
  • Repost: Air Leaks
    Historical mailing list - Steve Johnson
    Sat, 17 Jun 1995 11:28:18 -0700 (PDT)
    ...Since the pressure required is small, do you think a small capacity compressor e.g. one of those small ones that run off of...
  • Re: gas mileage dropped to 17 from 19/20 why
    Historical mailing list - Christopher Gronski
    Mon, 30 Jan 2006 18:26:19 -0500
    Have you checked your tire pressure since summer? Cold air = less pressure = more rolling resistance = poor mileage. Chris On 1/30/06, Jere Hawn...
  • Re: head gasket problem ?
    Historical mailing list - John Rodgers
    Fri, 21 Sep 2001 12:33:51 -0500
    ...So I get a water bottle, slowly > loosen the cap, let out the pressure and top it off. > > This same thing happened once on...
  • Re: Blam! Bleeder valve destruction and some other thoughts!
    Historical mailing list - Alistair Bell
    Wed, 29 Mar 2023 19:58:56 -0700
    ...After working on this for >> many hours I discovered that the pressure cap that came on the new >> expansion tank was defective, it didn...
  • Re: Coolant level sensor - repeat breakage
    Historical mailing list - John Reynolds
    Tue, 26 Aug 2008 16:09:00 +0000
    But shouldn't the pressurized expansion tank cap let off the extra pressure? I comtemplating getting a new cap from the VW dealer. Funny...
  • Re: AARGH! Failed NJ inspection!
    Historical mailing list - Dan Erlandson
    Tue, 29 Jul 2003 20:12:51 -0400
    ...You will need a non locking cap because the locking type will not hold the > air pressure test. Most parts stores will have one...
  • Re: Pressure test cooling system howto?
    Historical mailing list - Shawn Wright
    Wed, 21 Jul 2010 20:57:17 -0700
    ...1 wbxer > coolant bottle pressure cap .. > yes you can .. > it's a one way valve going in with no pressure, > and only allows outflow...
  • Loose oil dip stick
    Historical mailing list - Ken Hartz
    Tue, 31 Jul 2001 15:50:38 EDT
    ...questioning if my oil pressure would drop were the dip stick to vibrate out past the ridged end cap. Anyone else care to comment...
  • RE: Tires & Pressure '85 Westy
    Historical mailing list - mdstockr
    Sun, 26 Jan 97 21:22:09
    Wendy, Are there any load rating markings on tires? >From the 35 psi max pressure, I would guess that these are standard load tire...
  • Re: Cooling System Pressure Testing - make your own tool
    Historical mailing list - Nathan Mc Blain
    Fri, 30 Mar 2007 16:09:33 -0700
    ...Then screw the old cap on the coolant pressure tank(coolant will likely form out of the pressure tank...it did on mine), hook...
  • Re: Expansion tank under pressure when cold?
    Historical mailing list - Dennis Haynes
    Fri, 19 Feb 2016 01:19:58 -0500
    ...System pressure will still be on the other side of the valve. So two valves or just disconnect and plug the hoses or cap...
  • Re: Expansion tanks
    Historical mailing list - Scott - IMAP
    Wed, 20 Jul 2016 19:08:52 -0700
    ...re your comment on the blue caps. Supposedly it's a 'regular' pressure cap with coolant recovery valve. However.. they don't always release...
  • Re: 4th heater core burst in 1 year!
    Historical mailing list - Mark Dorm
    Thu, 5 Jul 2001 14:54:51 -0700
    Pressure cap? What exactly is this and where is it? The other day I parked my vanagon, and sat for a minute to think...
  • Cooling system pressue check
    Historical mailing list - Bob Whitby
    Thu, 4 Apr 2002 08:06:02 -0800
    Silly question here, but...Where is the radiator cap on a Vanagon? I want to perform a pre-purchase cooling system pressure check as...
  • CANADA Tire Info
    Historical mailing list - �ric Giroux
    Fri, 13 Jul 2001 13:34:20 -0400
    ...I changed my mind when I got to thinking >about the relationship between pressure and carrying capacity. >The max carrying capacity of the tires...