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 3+: 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: Headgasket diagnostic "trick"
    Historical mailing list - Scott Daniel - Turbovans
    Wed, 28 Apr 2010 12:45:18 -0700
    ...shut off engine, open cap. If there is pressure there when you remove the pressure cap ... yup .....exhaust and combustion pressure are getting into...
  • Re: pressure testing cooling system
    Historical mailing list
    Sat, 16 Dec 1995 23:57:40 -0400
    >The tester is screwed on in place of the pressure cap and then pumped up >to pressurize the system, with the engine stopped. Then...
  • Re: A Different Coolant Problem
    Historical mailing list - Tom Carchrae
    Mon, 9 Sep 2013 14:18:13 -0700
    ...A leaking cap valve reduces the system pressure so boiling is more > likely to occur with a bad cap. > > Whether the "air" is combustion...
  • Oil pressure LED update
    Historical mailing list - Greenamyer, William L
    Thu, 1 Nov 2001 05:54:36 -0800
    ...It wasn't the oil pressure at all. Seems that the distributor cap was arcing through to the clip on an intermittant basis. This...
  • Coolant bottle harbinger - opinions?
    Historical mailing list - Peter DiFalco
    Sat, 26 Jun 2010 08:20:42 -0700
    ...So today I have removed the pressure cap and here's what I find: a) gunk in the cap http://www.flickr.com/photos...
  • Re: blue vs green vs orange coolant
    Historical mailing list - Geo & Kathleen Hahn
    Wed, 9 Aug 2006 08:50:02 -0700
    ...A new cap returned things to normal. Never did figure out the connection between the cap/pressure/surging... but there it was. Geo H...
  • Re: Master Cylinder Reservoir Cap Vent: @ Electrical Connection?
    Historical mailing list - Old Volks Home
    Fri, 14 Sep 2012 16:17:55 -0700
    ...cap with fluid switch, turn on dash brake warning light when low > > This difference combines with some other wiring differences. > > 80-84 brake pressure...
  • Bleeding cooling system
    Historical mailing list
    Sun, 22 Jan 95 19:53:00 -0500
    ...VV>Alistair I had heard at on time that there was in existance a pressure tester cap for vanagon systems much like the ones...
  • Re: Coolant Strangeness
    Historical mailing list - Dennis Haynes
    Sat, 27 Aug 2011 19:28:28 -0400
    Having a properly working pressure cap is important for a number of reasons. However it is common for a cap to be defective and...
  • Expansion tank pressure cap - how tight?
    Historical mailing list - Luke Bakken
    Wed, 23 Dec 2009 19:26:35 -0800
    ...I also replaced the pressure cap about a month ago and still see this behavior. I have not tried the old cap again (yet...
  • WTB Coolant pressure tester
    Historical mailing list - Zoltan Kuthy
    Tue, 26 Feb 2008 11:14:17 -0800
    Hi guys, I would like to buy a pressure tester with an attachment to testing the cap. Anyone knows the best one and could...
  • Re: Power bleeder (brakes/clutch) opinions
    Historical mailing list - Mike Collum
    Fri, 15 Sep 2006 16:26:50 -0400
    I bought one of these Motive pressure bleeders and I made sure it had a cap that fit prior to ordering (and it does...
  • Re: Oil pressure warnings, WAS: Mann Oil Filter and lifters, now emissions indicator lights.
    Historical mailing list - James
    Tue, 4 Mar 2014 23:35:07 -0500
    ...filler getting rusty, and so the fuel cap doesn't quite seal tight... just enough air pressure leakage to make the "check engine light...
  • Brake Bleeder / Coolant Pressure Testor
    Historical mailing list - Cory Zumbrennen
    Thu, 8 Feb 2001 12:54:20 -0700
    ...Then I attached an air hose to the stem of the radiator cap and a fitting to attach it to the air pressure regulator...
  • coolant resevoir cap not right
    Historical mailing list - Bill Marshall
    Mon, 6 Apr 2020 13:44:42 -0400
    ...Old cap had some slight resistance to suction as it should but held 25lbs or more of pressure, causing leaks in other places. Bill...
  • Re: Help! Problems on the road! Smoke! or something that smells like it, anyhow...
    Historical mailing list - Ben huot
    Tue, 23 Mar 2004 13:11:18 -0500
    ...of pressure there.<<<< Another thing bro! Don't ever remove the expansion tank pressure cap!!!!!!! when the engine is hot, this cap is like...
  • Re: stranded out of state: coolent in exhaust
    Historical mailing list - Doktor Tim
    Sun, 10 Nov 2002 14:23:31 -0800
    ...Sounds to me like the pressure tank cap in not releasing pressure, resulting in the system overpressurized, which is what was popping the hoses...
  • Re: flow to radiator from water pump How fast should it be?
    Historical mailing list - David Brodbeck
    Tue, 6 Jan 2004 18:20:26 -0500
    ...bleeder hole has zero pressure??? > I know that if I had an equivalent size hole in the > blue cap in the back it would...
  • Re: looking for a tool to pressure test my coolant system
    Historical mailing list - Robert Harris
    Fri, 3 Jun 2005 13:47:35 -0400
    ...I assume that you take off the burp tank cap and install the pressure >tester there. > >Has someone found a tool that works go...
  • Re: Lowering Coolant Pressure for Headgaskets
    Historical mailing list - Austin
    Tue, 19 May 1998 20:52:39 -0700
    ...Magee I believe the pressure level from the coolant side is obtained from the 'radiator' cap (on the expansion tank on the v'gons...
  • Re: Re temp gauge
    Historical mailing list - Larry Alofs
    Sun, 8 Jan 2012 21:11:15 -0600
    ...Next to the pressure cap is a coolant level switch (improperly referee as 'a probe'). See examples @ BusDepot though they don't list the...
  • Re: Expansion tank under pressure when cold?
    Historical mailing list - Stuart MacMillan
    Wed, 17 Feb 2016 11:03:14 -0800
    ...19.17), and cap opens at 13 to 17 psi (p. 19.18). I use my Motive Products pressure brake bleeder, but anything with...
  • Re: coolant overflow fears and thoughts
    Historical mailing list - Dennis Haynes
    Tue, 30 Apr 2013 22:06:23 -0400
    Coolant system-cap pressure testers are readily available. You will need an adapter for the VW cap. Yes quality is all over the place...
  • Pressure test cooling system howto?
    Historical mailing list - Shawn Wright
    Wed, 21 Jul 2010 15:25:50 -0700
    ...Can I hook up my compressor and feed 15psi into the pressure tank using the overflow cap, or will this mess with the valve...
  • Re: coolant fairies...(long)
    Historical mailing list - Robert Keezer
    Fri, 13 Jul 2001 12:38:47 EDT
    ...The cap regulates the flow-when a certain pressure is reached, the cap valve open, releasing pressure and coolant. Pressurized systems do this to...
  • Re: Coolant Mystery positive update
    Historical mailing list - Eric Caron
    Wed, 20 Jul 2016 21:09:58 -0400
    Hi todd, I don’t think it is cracked as with the other caps it would hold pressure after a trip for 5 or...
  • Re: A Different Coolant Problem
    Historical mailing list - Jim Felder
    Mon, 9 Sep 2013 16:42:12 -0500
    ...A leaking cap valve reduces the system pressure so boiling is more > > likely to occur with a bad cap. > > > > Whether the "air" is combustion...
  • Re: Calif 2008 emissions fuel tank pressure testing? /NO Emissions Question
    Historical mailing list - Joseph Fortino
    Mon, 3 Mar 2008 16:52:32 -0600
    ...pressure testing? /NO Emissions Question > >On 3/3/08, Michael Elliott <camping.elliott@gmail.com> wrote: >> >> I are cornfused -- is CA testing gas caps...
  • Re: Coolant System Pressurization Woes
    Historical mailing list - Thomas Ryan
    Sat, 31 Mar 2001 21:13:27 EST
    ...defective pressure cap on the pressure tank. >> Rich, Very good point! The same analysis led me to replace the expansion tank cap twice before...
  • Re: Stopping Coolant Leaks with those "snake-oil" kits?
    Historical mailing list - Michael A. Radtke
    Fri, 18 May 2001 07:50:50 -0700
    ...The only side effect is that the AlumaSeal can crud up the expansion tank pressure cap. This takes about 2 years. The first symptom...
  • More 2.1L coolant sys woes (long)
    Historical mailing list - Barry Muller
    Wed, 29 Dec 2004 23:13:16 -0500
    ...methinks the over-pressure could be a problem due to flakey coolant tank caps, but hey, I got three and even if I swap...
  • Re: Diesel Westy Water pump replacement.
    Historical mailing list - Scott Daniel - Turbovans
    Sun, 1 Jul 2012 21:53:36 -0700
    ...This must be why it doesn't keep 15psi pressure in the cooling system. From cold it builds pressure first, pressure caps opens and...
  • Re: Expansion tank pressure cap - how tight?
    Historical mailing list - Don Hanson
    Wed, 23 Dec 2009 19:34:02 -0800
    ...I also replaced the pressure cap about a > month ago and still see this behavior. I have not tried the old cap > again (yet...
  • Re: Removing radiator bleeder screw
    Historical mailing list - Larry Alofs
    Mon, 13 Oct 2008 08:36:29 -0500
    ...Once the engine is > > running and warmed up the coolant expands and pressure builds in the > > system with the cap relief valve set at...
  • Re: Brake Bleeder / Coolant Pressure Testor
    Historical mailing list - Leon Korkin
    Thu, 8 Feb 2001 12:28:30 -0800
    ...Then I attached an air hose to the stem of the radiator cap > and a fitting to attach it to the air pressure regulator...
  • Re: Clutch slave cyl. replacement: What could go wrong? Well.....Friday sort of.
    Historical mailing list - Don Hanson
    Sat, 6 Sep 2014 21:05:39 -0700
    ...cap...This is to prevent running dry of fluid during the bleeding process and forcing air throughout the system...When finished with the pressure...
  • Re: Pressure Tester/Adapter for Vanagon
    Historical mailing list - Karl Mullendore
    Tue, 1 Jan 2008 12:53:17 -0500
    ...to > borrow one of their pressure testers. Unfortunately, their kit is > only works on US-type radiator caps, not the screw-on VW type...
  • Re: Coolant Strangeness
    Historical mailing list - Tom Rowsell
    Sat, 27 Aug 2011 16:23:43 -0300
    ...One should always carry a spare. > > > > right now, with no further information or test results.. > > it sounds like .. > > either pressure cap is not holding...
  • Re: Coolant Strangeness
    Historical mailing list - levi hawkins
    Tue, 23 Aug 2011 20:15:58 -0700
    I can't imagine why anyone would suggest it's okay to plug that outlet on the cap. It's a pressure release design...
  • Re: bleeding system
    Historical mailing list - John Rodgers
    Fri, 8 Sep 2000 15:06:23 -0500
    ...With the pressure cap off the coolant tank, run it until it warms up and thermostat opens. Run a little longer, then fill the...
  • Re: Blam! Bleeder valve destruction and some other thoughts!
    Historical mailing list - Alistair Bell
    Wed, 29 Mar 2023 19:41:52 -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...
  • coolant tank cap
    Historical mailing list - Stan Shapiro
    Sun, 20 Sep 2015 08:25:08 -0700
    90 Westy, 2.2 WBX How do you remove the blue, dome shaped cap from the coolant pressure tank? Does it twist off like...
  • Re: Cooling System Pressure Testing - make your own tool
    Historical mailing list - Giasson, Pascal (DNR/MRN)
    Mon, 26 Mar 2007 08:58:27 -0300
    ...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: Pressure cap
    Historical mailing list - Vanagon Man
    Sat, 22 Nov 2003 21:26:48 -0500
    ...Pressure cap > Hey now, > > Well it's Friday- looking forward to a great fall weekend in the NC > mtns(sunny and 65-70), anyway...
  • Re: More 2.1L coolant system woes (long)
    Historical mailing list - Eric Zeno
    Thu, 30 Dec 2004 10:56:43 -0500
    ...I then added a hose from the cap to my air compressor. This can easily over pressure the system, so you have to be...
  • Re: Questions: 1.9l Turbo Diesel Westy running hot. Weak cooling?
    Historical mailing list - Scott Daniel - Turbovans
    Mon, 2 Jul 2012 14:43:57 -0700
    that very conventional pressure cap is used just on 82 and 83 diesel vanagons , off the top of my head. And not on jettas...
  • Cooling System Pressure Testing - make your own tool CHEAP!
    Historical mailing list - Tabe Johnson
    Fri, 23 Mar 2007 12:41:23 -0400
    ...used cap to remove the valving and attach an air compressor or hand tire pump to the pressure tank. Apply your chosen pressure (I...
  • Re: Calif 2008 emissions fuel tank pressure testing? /NO Emissions Question
    Historical mailing list - VW Doka
    Mon, 3 Mar 2008 15:21:24 -0800
    ...Calif 2008 emissions fuel tank pressure testing? /NO Emissions Question BenT is correct they do test the CAPS only. careful my cap was good...
  • Re: Coolant Loss- is it that time again?
    Historical mailing list - Jim Felder
    Wed, 30 Mar 2016 17:54:22 +0000
    ...use a failed blue cap (but I repeat myself) and splice it to a cheap FLAPS pressure gauge with a section of hose. Start...
  • Re: Boston to DC Vanagon purchase saga (long)
    Historical mailing list - Tom L. Neal
    Sun, 2 Jan 2000 08:40:48 -0800
    ...the cap blew on the distribution unit and was replace by a ketsup lid, I switched to a "bad" zero pressure cap that was...
  • Splittie gas cap problem
    Historical mailing list
    1 Nov 95 17:40
    ...to fill up and remove the cap the tank was under pressure. So.. Is the gas cap supposed to seal like that or is...
  • Blue radiator cap
    Historical mailing list - Gary
    Wed, 31 May 2000 12:51:19 -0600
    I just bought a new radiator cap (coolant tank cap) for my 87 from the dealer. The new one is blue colored, the old...
  • Re: A Different Coolant Problem
    Historical mailing list - JRodgers
    Mon, 9 Sep 2013 16:51:41 -0500
    ...A leaking cap valve reduces the system pressure so boiling is more >>> likely to occur with a bad cap. >>> >>> Whether the "air" is combustion...
  • Re: Engine overheating - Need Advice
    Historical mailing list - George Goff
    Fri, 18 Feb 2005 00:42:54 EST
    In a message dated 2/17/05 10:53:10 PM, donalds1@VERIZON.NET writes: << replace the pressure cap Boston Bob the night tripper...
  • Re: Overflow reservoir
    Historical mailing list - Richard Koerner
    Sun, 26 Feb 2023 22:41:57 +0000
    ...The tank with the > pressure cap should be referred to as the pressure or expansion tank. The > tank behind the license plate door is...
  • Re: Coolant Reservoir Boiling
    Historical mailing list - Steve
    Tue, 23 Jul 2013 09:01:14 -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: Pressure cap problem?
    Historical mailing list - Hector Zapata
    Fri, 25 May 2012 16:28:15 -0400
    ...Hector 1990 Carat 'Ursula' On Fri, May 25, 2012 at 1:24 PM, Richard Golen <rgolen@hotmail.com> wrote: > I think my pressure cap...
  • Tires, Load Range and Pressure
    Historical mailing list - Mike Finkbiner
    Sat, 19 May 2001 04:57:21 -0000
    ...Why is that? In a word, pressure. The load capacity of a tire is specified at maximum pressure. A 185R14 C tire with a...
  • Re: Water Woe's
    Historical mailing list - Larry Alofs
    Sat, 24 Apr 2004 09:03:47 -0500
    The pressure cap is the obvious thing to check. Or just replace it. Larry A. Mervyn Readman wrote: > It all started two weeks ago...
  • Re: Cooling system woes
    Historical mailing list - Kenneth D Lewis
    Sat, 15 Dec 2001 08:43:26 -0500
    ...I would say you have zero resistance from the pressure cap. Good Luck and Drive Safely Ken Lewis 86 Crewcab,60 356 http://Neksiwel...