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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 9+: 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: A/C not blowing cold
    Historical mailing list - Kim Brennan
    Mon, 21 Jul 2003 17:58:06 -0400
    ...It if was converted to R134, it should probably have a blue cap. The high side is a red cap. Black cap on schrader...
  • Re: Missing coolant
    Historical mailing list - SDF ( aka ;jim lahey' - Scott )
    Wed, 14 Oct 2015 11:27:28 -1000
    any cap or valve system has to do 2 1/2 things.. first....maintain pressure on the coolant, and release pressure if it gets...
  • VW radiator caps
    Historical mailing list - Rocko Flamefart
    Thu, 9 Jan 97 09:22:08 -0600
    ...only until the design pressure has been reached should anything flow out the hose barb. i've had a bad cap on both my...
  • Re: cooling system hose clamps
    Historical mailing list - Alistair Bell
    Fri, 23 Sep 2022 18:29:41 -0700
    ...I purchased a new 13psi cap and when tested it, it would quickly bleed off excess pressure above 13. The van has likely been...
  • No coolant traffic
    Historical mailing list - Zoltan
    Fri, 25 Dec 2009 22:23:12 -0800
    I can't see any movement of the coolant from the reservoir tank to the pressure tank. I installed a new cap and still...
  • Re: 80 d Thermostat rocks
    Historical mailing list - George Goff
    Thu, 12 Sep 2002 21:46:47 EDT
    In a message dated 9/12/02 6:30:49 PM, mjstelk@HOTMAIL.COM writes: << Does this mean my pressure cap needs to be...
  • Re: Hose from pressure cap on expansion tank to coolant overflow tank
    Historical mailing list - Gene P
    Thu, 17 Oct 2019 18:53:01 -0700
    ...Hose from pressure cap on expansion tank to coolant overflow tank Thank you, Dan. I went to the local AutoZone and O'Reilly's...
  • Re: 85-H20 loss of coolant mystery
    Historical mailing list - Scott Daniel - Turbovans
    Wed, 21 Sep 2011 21:52:24 -0700
    ...I removed the > expansion cap to make sure I wasn't starting with pressure in the > system. Replaced the expansion cap and started the...
  • Re: Power Brake Bleeding
    Historical mailing list - Mark Ingalls
    Fri, 8 Dec 2000 07:49:56 -0600
    ...Did you just modify the top of the master cylinder reservior to put air pressure on it? Maybe an old cap? Very interesting idea...
  • Re: Coolant change
    Historical mailing list - John Rodgers
    Tue, 29 Aug 2000 21:47:20 -0500
    ...are you getting the tailend higher than the radiator - is it > >(the > > > pressure cap) the highest point??? > > > > > > >From: John Rodgers <inua@hiwaay.net> > > > > > > >Mark...
  • Re: Thermostat soup: A comparison.
    Historical mailing list - Jake de Villiers
    Thu, 21 May 2009 13:08:03 -0700
    ...laws, but I just did the > servi- er, experiment on the pressure cap and I got no particular > resistance > in either direction, so I...
  • Re: Of blown coolant hoses and old radiators
    Historical mailing list - Barry Muller
    Tue, 13 Apr 2004 20:54:10 -0400
    Hi Bob, Well, it is a new pressure cap, direct from VW. I had to replace the old one when I accidently (foolishly) applied...
  • Re: Bought an Infared Thermometer....now what????
    Historical mailing list - George Goff
    Sat, 7 Sep 2002 20:41:42 EDT
    ...Check that the bleeder in the engine compartment is closed, then, make certain the entire system, including the pressure cap, will maintain pressure when...
  • Hub Cap
    Historical mailing list - Jere Hawn
    Wed, 17 Mar 2004 20:47:32 -0800
    Hi All, Anyone got an old gray plastic hub cap lying around. Mine came off, I found it two days later on the side...
  • Re: Cooling system hose diagram
    Historical mailing list - David Beierl
    Tue, 23 Apr 2013 10:41:15 -0400
    ...Thanks David! Now the mystery of the ages has been solved :-) Of course I forgot the one from pressure cap to overflow bottle... :) d
  • Re: Blam! Bleeder valve destruction and some other thoughts!
    Historical mailing list - Alistair Bell
    Wed, 29 Mar 2023 20:00:55 -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...
  • Oil pressure sender wire
    Historical mailing list - BajaLeo
    Tue, 5 Mar 2002 21:31:54 -0800
    Hi List, While troubleshooting an oil pressure light that wouldn't go out, I found that the wire from the sender was grounding out...
  • Re: Calif 2008 emissions fuel tank pressure testing?
    Historical mailing list - Jim Kurpius
    Tue, 4 Mar 2008 10:34:02 -0800
    ...Calif 2008 emissions fuel tank pressure testing? /NO Emissions Question > Both. They're testing the gas caps and the evap system. > > There's some...
  • Re: Another heating/cooling question
    Historical mailing list - Frank Grunthaner
    Sun, 19 Nov 2000 11:44:37 EST
    ...at which pressure rises and max attained), head pressure vs. rpm, thermostat opening point and the point at which the radiator cap opens sending...
  • Re: Cooling system woes (again, again, again-again)
    Historical mailing list - Karl Wolz
    Sat, 21 Jul 2001 09:29:59 -0700
    ...Cooling system woes (again, again, again-again) > My '87 likes to barf out its coolant little by little through the pressure > cap into the...
  • Re: Boston Bob Big Valve Update? Not really... (LONG)
    Historical mailing list - Marc Perdue
    Wed, 16 Feb 2005 22:12:41 -0500
    ...Yep, had new plugs, wires, cap, button (I guess. What's a button?). It does sound like a compression check and fuel pressure check...
  • Re: Coolant leak(again)
    Historical mailing list - Austin
    Thu, 26 Mar 1998 22:24:08 -0800
    ...I can't see, that opens up at a >pressure below pressure cap operating pressure, thus allowing some leakage, >but with coolant around the...
  • Re: CANCEL THAT: WAS Testing fuel delivery results, one oddity, now NO oddity
    Historical mailing list - Scott Daniel - Turbovans
    Sun, 19 Aug 2012 14:01:50 -0700
    ...try following what they say for pressure testing a waterboxer pressure cap - they show you testing a diesel vanagon one, and mention an adapter...
  • 1st Most important specialized waterleaker measurement device
    Historical mailing list - Tom L. Neal
    Thu, 21 Oct 1999 20:15:54 -0700
    ...makes sense that the pressure should go up erratically since the tank cap may not respond quickly enough), defective caps, and most importantly when...
  • Re: Evans NPG+ non-aqueous coolant - was: blue vs green vs orange coolant
    Historical mailing list - Greenamyer, William L
    Wed, 9 Aug 2006 10:56:19 -0700
    ...How does the 'no pressure' aspect work? Does one put a pin hole in the expansion tank cap?? Or is it that this special...
  • AFM black plastic cap removal - Nervous
    Historical mailing list - Chris Radcliffe
    Sun, 20 Jan 2002 22:33:16 -0800
    ...But even the slightest pressure with a pry tool at any point around the lip of the black cap makes it turn light grey...
  • Re: overheating issues
    Historical mailing list - Dennis Haynes
    Thu, 8 Sep 2005 21:00:06 -0400
    The pressure cap is probably one of the most important parts of the cooling system, yet it is often overlooked and the VW one...
  • Re: Master Cyl. Res. Cap;
    Historical mailing list - Jeff Ensing
    Wed, 12 Sep 2007 11:05:34 EDT
    ...Audi&category=spec I also have a similar cap for the cooling system and pressure bleed it too... ************************************** See what's new at http...
  • Re: Where is the water going to?
    Historical mailing list - Dennis Haynes
    Wed, 7 Mar 2001 20:23:20 -0500
    Internal head leak and/or bad pressure cap. -----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com]On Behalf Of Zoltan Sent...
  • Re: How to - or not - bleed the cooling system
    Historical mailing list - John Bange
    Wed, 8 Feb 2006 16:12:33 -0800
    ...Alternately, one can (with the engine cold and not running) plug a piece of clean fuel line onto the pressure cap overflow nipple and...
  • Re: 80 d Thermostat rocks
    Historical mailing list - Hector Zapata
    Fri, 13 Sep 2002 02:30:35 +0000
    <html><div style='background-color:'><DIV> <P><BR> <DIV></DIV> <DIV></DIV>&lt;&lt; Does this mean my pressure cap needs to be replaced...
  • Re: Air conditioning - 1988 GL 2.1 WBX
    Historical mailing list - John Rodgers
    Sun, 19 Jun 2016 13:07:14 -0500
    ...is the high pressure service port on this rig? The low pressure > > service port was obvious with a blue cap as the result of...
  • Re: Overflow puking water
    Historical mailing list - Damon Campbell
    Tue, 18 Nov 2003 09:42:24 -0800
    ...I fabricated a little pressure tester out of an old gutted blue cap, a bicycle pump, and the stuff needed to hook those up...
  • Help, my 84 is burping coolant
    Historical mailing list - maplecom
    Fri, 25 Feb 2000 20:49:44 -0500
    ...Is the pressure cap bad? I know if I let the machine cool overnight I get my overflow tank sucked dry from inside. Also...
  • Re: Coolant cap tester
    Historical mailing list - Dennis Haynes
    Sun, 8 Apr 2012 16:53:27 -0400
    ...Coolant cap tester Heres a picture of the gizmo I made to test the pressure cap. https://picasaweb.google.com/101787477383733954114/Vanagon Cheap Harbor...
  • Re: Questions about brake bleeding
    Historical mailing list - Neil N
    Tue, 5 May 2020 09:48:32 -0700
    ...the cap on the Motive, air bubbles get introduced into brake fluid in the Motive tool? I use a home made "air" pressure bleeder...
  • Re: coolant overflow tank
    Historical mailing list - Scott Daniel - Turbovans
    Mon, 25 Feb 2013 21:39:55 -0800
    ...the tube that > connects to the pressure cap? > > I disconnected the connecting tube at the pressure cap, tried blowing > through it into the overflow...
  • Re: Calif 2008 emissions fuel tank pressure testing?
    Historical mailing list - John Bange
    Sun, 2 Mar 2008 22:41:39 -0800
    ...Gas caps are largely standardized now, so fitting it to the pressure tester is no trouble. Enter the asinine evap test for pre-OBD2...
  • Re: AC 134a refrigerant leak down
    Historical mailing list - Ryan Press
    Thu, 9 May 2013 09:37:12 -0700
    I think the problem is more the oil, and not the pressures. Sure the average pressure with R134a will be a bit higher (maybe...
  • Re: disappearing coolant??
    Historical mailing list - John Parson
    Fri, 12 Sep 2003 13:20:11 -0400
    ...the heat<br>begins to build, does the radiator cap get enough<br>pressure to open. At least this is my experience and<br...
  • Re temp gauge
    Historical mailing list - Tom Torrella
    Sun, 8 Jan 2012 09:02:24 -0500
    ...Also check condition of pressure cap - tight? leaking? TomT
  • Re: somthing screwy goin on
    Historical mailing list - George Goff
    Tue, 22 Oct 2002 14:42:49 EDT
    ...writes: << does this sound like air still in the system >> Yes, Dave, and it sounds like the pressure tank cap is also hinky. George
  • Re: '82 clutch capers
    Historical mailing list - John Rodgers
    Sun, 2 Mar 2003 10:58:42 -0600
    Stan Wilder wrote: >The clutch master cylinder shares the fluid reservoir with the brake >master cylinder > > Stan, how do you pressure bleed the clutch...
  • Re: Faint coolant smell
    Historical mailing list - Larry Alofs
    Wed, 9 Sep 2015 08:57:33 -0400
    ...remove the cap so you can pour in coolant. The main advantage of this IV method is to provide enough pressure to get the...
  • Re: Missing coolant
    Historical mailing list - Dennis Haynes
    Thu, 15 Oct 2015 22:27:24 -0400
    ...On system that have an air > pocket under the pressure cap the system only has the cap vent during an overfill or overheat condition...
  • coolant pressure testing
    Historical mailing list - mykarmann
    Fri, 3 Sep 2004 16:00:15 -0400
    Hello all, anyone have any info and how to make or were to buy "cap" needed to pressurize the system and looks for leaks...
  • Re: Tips on replacing Temp 2 sensor The easy way!
    Historical mailing list - Dennis Haynes
    Mon, 26 Jan 2015 14:10:51 -0500
    Engine cold Pinch hose or plug overflow vent on pressure cap. If air can't get in coolant won't flow out. Prep new...
  • RE: Air in cooling system - advice please...
    Historical mailing list
    Thu, 27 Apr 95 10:41:34 PDT
    ...Combustion gas still remained inside the pressure tank. I had refilled it many times. Cap replaced once and the same symptom appears again and...
  • Re: home made pressure bleeder
    Historical mailing list - David Kao
    Wed, 11 Mar 2009 18:57:48 -0700
    ...I will have a bottle made of hard plastic transparent and about 2 liter capacity. There will be two hose fittings on the cap...
  • Re: 84 Vanagon Bursting Coolant Hoses
    Historical mailing list - Giasson, Pascal (DNR/MRN)
    Fri, 9 Mar 2007 09:02:27 -0400
    ...Parts needed are an old coolant pressure cap with guts removed to allow free flow of air, a air valve stem or nipple (to...
  • Re: Blam! Bleeder valve destruction and some other thoughts!
    Historical mailing list - Alistair Bell
    Wed, 29 Mar 2023 20:11:17 -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: Engine worries return
    Historical mailing list - Don Hanson
    Fri, 28 Jul 2017 10:30:20 -0700
    To test my inline VW motor for exhaust bubbles in the pressure tank I put 15 psi air pressure in there with all the...
  • Re: head gasket problem ?
    Historical mailing list - Calvin Bruce
    Sat, 22 Sep 2001 16:02:49 -0700
    ...When the pressure of the expanding coolant reaches that >pressure setting of the pressure cap, the valve opens, allowing the >expanding coolant to overflow...
  • Re: Expansion tank under pressure when cold?
    Historical mailing list - thewestyman
    Thu, 18 Feb 2016 09:28:19 -0800
    ...Expansion tank under pressure when cold? > > Bentley says apply 14.5 psi for leak testing (p. 19.17), and cap opens at > 13 to...
  • Pressurized fuel tank..help needed
    Historical mailing list - Vanagon man
    Mon, 6 Jan 2003 19:12:17 -0500
    You know.the deal where you take off the gas cap and you hear the pressure release, or after you have parked, you hear...
  • Re: Bleeding cooling system
    Historical mailing list - Alistair Bell
    Sun, 15 Jan 1995 12:02:21 -0800 (PST)
    ...Run engine until thermostat open (coolant resevoir cap off), then attach modified cap, pump up windshield wiper resevoir to 2-3 bar. If my...
  • Tires & Pressure '85 Westy
    Historical mailing list - wsilva
    Sun, 26 Jan 1997 20:59:23 -0800
    ...I notice the max tire pressure on the tires say 35 psi. I have noticed in the camper owners manual it has one pressure...
  • Re: temp light blinking
    Historical mailing list - Richard Koerner
    Wed, 2 Feb 2022 17:55:44 +0000
    ...coolant in pressure vessel, I simply disconnected the hose at blue cap, removed cap, filled pressure vessel to top; replaced cap and hose, and...
  • Re: 90 cooling problem
    Historical mailing list - Benny boy
    Sat, 21 Jul 2007 08:30:59 -0400
    ...cap? how is the level on that tank? If your lucky! the pressure is normal, but if you have a crack, a defective cap...
  • Re: Filling the coolant reservoir...
    Historical mailing list - John Rodgers
    Tue, 26 Apr 2016 14:41:59 -0500
    ...am sure he's thinking as modern car with the radiator and a filling tank > with no pressure cap and no expansion tank.. > > haha... > > :-) >