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Page 3+: 60 results shown for Compression pressure.

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

• Re: Still running like crap, the saga continues - Compression Test
  Historical mailing list - Mike
  Wed, 19 Mar 2008 17:43:22 -0400
  ...Now to determine where the pressure's escaping; valve(s) or rings (or even a cracked head). A differential compression (leakdown) tester will show...
• Re: 52 degree Inline 4 hydraulic lifters leaking down
  Historical mailing list - Bill MacLachlan
  Wed, 16 Apr 2008 08:39:01 -0700
  ...high oil pressure forcing the lifters to hold the valves open, giving no compression. ( Scott's initial suggestion!) Mechanics suggested cause: additive he'd...
• Re: Leak Down Testing
  Historical mailing list - Mike
  Mon, 1 Jan 2007 11:30:33 -0500
  ...Leak Down Testing > Here is a web site that gives a complete, technical, professional > description of doing a differential compression check on an aircraft...
• =?windows-1252?Q?RE=3A_COMPRESSION_=7B=23=7E=3C=A9=3E=7E=23=7D?= =?windows-1252?Q?_Why_so_low=3F?=
  Historical mailing list - Various
  Sat, 20 Sep 2003 13:41:36 -0300
  ...BTW, has anyone had the experience of a faulty oil pressure relief valve, or had to repair or replace one? Fred aka Bleu Schtroumpf
• Re: 2.1 WBX Coolant Loss: Searched Compression test results.
  Historical mailing list - Don Hanson
  Sun, 3 May 2015 09:27:14 -0700
  ...However, a compression test alone is often a waste of > time. Combined with a leak down test you would know if you have a...
• Re: e15
  Historical mailing list - James Flournoy
  Mon, 31 Dec 2012 17:41:23 -0800
  ...are high pressure electronic fuel injectors for diesel and direct injectin The "eco-boost" type results are amazing lots of compression and lots of...
• unclassified Compression and other topics
  Historical mailing list - Thomas, Geoffrey
  Tue, 25 May 2004 16:40:20 -0400
  ...pressure test indicated no leaks. I am wondering if (a) my mechanic is as good as he might be, and (b) the compression readings...
• Re: cooling system diagnostic help? Long, lots of info about whats been done so far.
  Historical mailing list - Dennis Haynes
  Mon, 26 Apr 2010 06:11:31 -0400
  ...presence of exhaust gasses in your pressure tank - a >pretty sure confirmation of our diagnosis. > >Karl Wolz Compression testers are cheap.... Rob becida@comcast...
• Engine Advice Needed
  Historical mailing list - Loren Busch
  Sat, 24 May 2014 09:30:01 -0700
  In a '90 Westy, stock 2.1L WBX with 185k miles, auto tranny Recent compression test is 150, 145, 135, 70. Number one is...
• Re: Is this the cause of my engine compression problem?
  Historical mailing list - David Kao
  Tue, 19 Jun 2007 08:17:00 -0700
  ...I found the real problem eventually by doing > >a pressure test to the engine. > > > >I borrowed a compressor and coverted my compression tester into...
• Re: Lifter adjustment VOODOO
  Historical mailing list - Jake Beaulieu
  Wed, 30 Apr 2008 13:06:01 -0700
  ...the oil pressure came up (5-10 seconds), then it just barely chugged along. A compression test revealed that the compression had dropped from...
• Re: Expanshion Tank cap
  Historical mailing list - David Brodbeck
  Mon, 28 Oct 2002 22:36:06 -0500
  ...compression test won't really show it. A leakdown test (where each cylinder is brought to TDC, filled with compressed air, and the pressure...
• Compression test on 1982 aircooled westy
  Historical mailing list - David and Shirin
  Fri, 3 Oct 2003 15:13:52 -0400
  ...Bently manual compression check values for this engine are taken with a minimum oil temp of 86deg F Compression pressure values, 87-131psi Wear...
• Re: Compression tester question
  Historical mailing list - neil N
  Fri, 16 Nov 2007 10:46:56 -0800
  ...It not > > > it will register the pressure it sees. You have to watch it and read > > > peak pressures. In the case as described (dropping...
• Re: FW: Best way to judge life left in Waterboxer?
  Historical mailing list - Scott Daniel - Turbovans
  Tue, 8 May 2012 12:34:36 -0700
  Compression test yes, but more than that, for something that can be terminal, oil pressure. As with a gauge .. If you start seeing lowish...
• Mechanic: "You're Gonna Need a New Motor"
  Historical mailing list - Chris Paquette
  Wed, 5 Sep 2001 11:20:21 -0700
  ...the compression for #4 was 10lbs., where normal, he said, is around 150 lbs. (from the invoice I can see that the pressures for...
• stalling when engine is cold
  Historical mailing list - J. Walker
  Fri, 02 Sep 94 17:30:28 CDT
  ...zero compression, the chances are even greater than the oil pump is to blame. If the oil pressure relief valve sticks, oil pressure could...
• Re: No Start 83.5: Fuel pump test?
  Historical mailing list - Don Spence
  Mon, 16 Jul 2007 13:26:26 -0600
  ...pump is defective in it's pressure output. ( As in not enough pressure to squirt fuel under compression) The pump runs for 3 seconds...
• Re: Engine Advice Needed
  Historical mailing list - OlRivrRat
  Sat, 24 May 2014 14:55:00 -0600
  ...Then compression >> test that cyl again. >> >> At this point I would pull the 1 plug, test the compression again to get >> a new base...
• Re: Compression, Valve Adjusting
  Historical mailing list - Bob Donalds
  Wed, 27 Jun 2007 15:15:40 -0700
  ...This was on the assembly stand when checking compression with a with 10/30 oil at room temp. Dennis also mentioned spring tension and...
• compression testing procedure
  Historical mailing list - Karl Bloss
  Tue, 28 Apr 1998 09:15:33 +0000
  I've searched the archives about compression testing, but haven't found the answers I was looking for: Why the open throttle requirement? Both...
• Re: Help No Power 1.9L HELP REQUESTED!!!
  Historical mailing list - Bulley
  Mon, 26 Apr 1999 07:28:24 -0400
  ...If you have 145 on all four, than eliminates problems with intake, & compression. That leaves exhaust, fuel and ignition. You have done some work...
• Re: aligning distributor
  Historical mailing list - Paul Henderson
  Wed, 27 Aug 1997 09:37:41 -0500
  ...feel the lack of pressure on the evacuation stroke. Line up the pulley's timing mark on the compression stroke, line up the rotor...
• Re: 52 degree Inline 4 hydraulic lifters leaking down
  Historical mailing list - Jake de Villiers
  Mon, 14 Apr 2008 13:04:50 -0700
  ...reply. > I understand that if compression is lost because a valve is open, > > - it's excess oil pressure that's opening the valve, not...
• Re: HELP! Westy Stranded in Bryce Canyon National Park...
  Historical mailing list - John Connolly
  Sat, 30 Apr 2005 17:42:13 -0600
  "high elevation" gas is a lower octane, not needed up there because the thinner air creates lower cylinder pressures during the compression stroke. here...
• Re: Help me with engine replacement options, please (longish)
  Historical mailing list - Paolo Damiani
  Sun, 25 Oct 1998 19:40:43 EST
  ...up the throttle fully) Cranked engine until compression gauge stoped climbing (about three seconds). Released pressure and repeated for each cylinder. Didn't do...
• Re: Power steering lines R & R
  Historical mailing list - L&A Johnson
  Mon, 6 Sep 1999 08:54:24 -0400
  ...So we wrapped the low pressure line with rubber plumber's tape and put a compression clamp on it. The leak stopped. Larry alan...
• Re: compression/vacuum/fuel pressure/O2 voltage
  Historical mailing list - Jay L Snyder
  Tue, 16 Oct 2001 07:45:14 -0400
  Sounds way too lean to me (assuming your O2 sensor is working correctly). You could open up the AFM and loosen the spring a...
• Re: Having an annoying problem with my 85 GL.
  Historical mailing list - Mark A. Williamson
  Mon, 16 Nov 1998 14:55:05 -0700
  ...I am not sure if simply check the compression on a cylinder will clarify this potential condition, as the compression test will not distinguish...
• Re: Boston Bob Engine - Follow Up
  Historical mailing list - Mark Ingalls
  Sat, 11 Aug 2001 15:32:58 -0500
  ...the vacuum, fuel pressure and compression. > >Fuel Pressure at idle - 34 Connected 38-39 Disconnected > >Engine Vacuum at idle - 10 > >Compression - 1,2,3...
• Re: Engine Advice Needed
  Historical mailing list - Stuart MacMillan
  Sat, 24 May 2014 15:42:58 -0700
  ...Then compression >> test that cyl again. >> >> At this point I would pull the 1 plug, test the compression again to >> get a new base...
• Re: Interpretting Compression Values- 88GL?
  Historical mailing list - Dennis Haynes
  Wed, 4 Jun 2003 19:07:43 -0400
  ...To further evaluate engine condition, the oil pressure needs to be measured as most sudden catastrophic failures will be there. The low compression reading...
• Re: White smoke? (UPDATE)
  Historical mailing list - Mike Collum
  Mon, 27 Aug 2007 02:49:30 -0400
  ...When I did a compression test, the bad one (where the crack in the head was) wouldn't come up to pressure and wouldn...
• 87 rebuild update
  Historical mailing list - Anthony Kimmons
  Tue, 14 Jul 1998 15:40:08 -0500
  ...Will buy compression tester and oil pressure guage this weekend. Any advice? Thanks!
• Re: Valve cover leaks
  Historical mailing list - Stan Wilder
  Thu, 14 Nov 2002 08:34:48 -0600
  ...respond to new gaskets I found crank case pressure from broken rings. Check your compression. You might try leaving the dipstick out and running...
• Re: unclassified Compression and other topics
  Historical mailing list - John Rodgers
  Tue, 25 May 2004 18:37:53 -0500
  ...pressure test indicated no leaks. >I am wondering if (a) my mechanic is as good as he might be, and (b) the >compression readings...
• got spark, got fuel, got compression won't start
  Historical mailing list - mykarmann
  Mon, 18 Aug 2003 20:19:32 -0400
  ...I haven't rigged up a pressure gauge to check the fuel pressure but I'm sure the one I've got on her...
• Re: 2.1 WBX Coolant Loss: Searched Compression test results.
  Historical mailing list - Neil N
  Sun, 3 May 2015 09:20:42 -0700
  ...A compression and leak down test should be done sooner than later. On 5/3/15, Dennis Haynes <d23haynes57@hotmail.com> wrote: > Those numbers...
• Re: Strange Vanagon problem in Belize
  Historical mailing list - mark drillock
  Thu, 13 Jan 2011 06:48:08 -0800
  compression good? fuel pressure good? making spark? timing close? firing order right? injectors spraying? is the exhaust/cat plugged or blocked? Should at least...
• Re: cooling system diagnostic help? Long, lots of info about whats been done so far.
  Historical mailing list - Rob
  Sun, 25 Apr 2010 21:45:00 -0700
  ...presence of exhaust gasses in your pressure tank - a >pretty sure confirmation of our diagnosis. > >Karl Wolz Compression testers are cheap.... Rob becida@comcast...
• Maybe buying a van..
  Historical mailing list - Steve Delasalle
  Sat, 4 Mar 2000 00:02:37 -0600
  ...I'd like to get oil pressure, compression pressure (diesel) and brakes checked at least. Any leads? Also, the current owner thinks that the...
• Re: Driving on Air
  Historical mailing list - Jim Felder
  Sun, 9 Nov 2008 17:55:26 -0600
  ...the pressure runs lower they are using fuel to run a heater to raise the temperature of the air to raise its compression. The...
• HELP - Oil light says on!
  Historical mailing list - David Marshall
  Mon, 16 Aug 1999 19:23:59 -0700
  ...like the #3 cylinder with 190 PSI compression). First thing I though was bad high pressure sender. So I replaced it. Still the same...
• Re: 52 degree Inline 4 hydraulic lifters leaking down
  Historical mailing list - neil N
  Wed, 16 Apr 2008 09:19:04 -0700
  ...100lb/in+ Conclusion: > high oil pressure forcing the lifters to hold the valves open, giving no > compression. ( Scott's initial suggestion!) Mechanics suggested cause...
• Re: Lifter adjustment VOODOO
  Historical mailing list - Dennis Haynes
  Wed, 30 Apr 2008 17:20:13 -0400
  ...the oil pressure came up (5-10 seconds), then it just barely chugged along. > A compression test revealed that the compression had dropped from...
• Re: Leak-down Test - How to??
  Historical mailing list - Michael
  Sun, 23 Mar 2014 15:04:44 -0400
  ...tightly, then attach the differential > compression tester, hook up the compressed air to to it, admit 120 psi > pressure from the compressor - and watch...
• Re: Help needed: ABA conversion has spark and fuel but won't start.
  Historical mailing list - Mike
  Thu, 28 Aug 2008 21:56:03 -0400
  ...A differential compression tester will not only tell you if it has good compression, but the leakdown will also show where the pressure is...
• Re: OIL warning light up
  Historical mailing list - Allan Streib
  Wed, 23 Jul 2008 09:38:07 -0400
  ...OK, I will check the pressure then change the switch if I have to. > 140k on engine, compression is very good, engine quiet, smooth...
• Help w/2.1 What am i missing?
  Historical mailing list - Darren Lastfogel
  Mon, 8 Jun 2009 19:17:22 -0400
  ...I put in some new gas And It would not start, Checked my fuel pressure at the T and it was 35 psi I...
• Re: Puzzling valves...
  Historical mailing list - Zoran Mladen
  Wed, 7 Jan 2004 19:01:48 -0800
  ...was > compression but not very good. > I was wondering if the valve lifters got pumped up > and could not release to spring pressure at...
• Re: Lifter adjustment VOODOO
  Historical mailing list - Mark Drillock
  Wed, 30 Apr 2008 15:23:45 -0700
  ...the oil pressure came up (5-10 seconds), then it just barely chugged along. A compression test revealed that the compression had dropped from...
• Re: Hydraulic lifter valve clearance settings on a 1600 aircooled
  Historical mailing list - Carrington, Tom
  Tue, 11 Jan 2000 10:33:28 -0500
  ...Started the engine and as soon as the oil pressure came up, the lifters pumped up and then slammed the valves into the tops...
• 85 Vanagon 1.9 oil pressure
  Historical mailing list - Rio Rafael
  Mon, 24 Sep 2001 09:14:16 -0700
  ...Still trying to figure out why an otherwise excellent engine has low oil pressure. Facts: 1) Engine has 95,000 miles. Compression is 180...
• Re: Used Van Need help
  Historical mailing list - Dennis Haynes
  Mon, 30 Jun 2003 23:26:59 -0400
  ...On Waterboxers, this should also be done with the pressure cap removed to detect leakage into the cooling system. I just did a compression...
• Re: How do anti-ping additives work?
  Historical mailing list - Roger&Zoe Ann Banker
  Thu, 20 May 1999 20:29:38 EDT
  ...self-ignites from the heat and pressure, before the spark is supplied (dieseling). The higher the compression and greater the heat, the greater the...
• Re: Strange Catastrophic Failure
  Historical mailing list - Rob
  Mon, 25 Jul 2011 10:58:20 -0700
  A 75 psi difference in compression pressures would bother me, bother me a lot. Rob becida@comcast.net At 7/25/2011 09:47...
• Compression Values- 88GL(cont.)
  Historical mailing list - Matt Sutton
  Thu, 5 Jun 2003 08:48:15 -0400
  Thanks everyone for the feedback on the compression values. I have not checked the valve adjustment in the year I've been driving the...
• new diesel - - one cylinder, no compression
  Historical mailing list
  Thu, 25 Feb 1999 09:59:44 -0700
  ...I checked the compression on that cylinder and found it to be zero! I poured a few tablespoons of oil down the hole to...
• Re: compression test
  Historical mailing list - G. Matthew Bulley
  Mon, 4 Feb 2002 16:35:22 -0500
  ...compression test Hello All, I have just done a preliminary compression test on my '90 Westy with 140K miles. The figures are: #1=118...
• Re: Zero valve settings
  Historical mailing list - Dennis Haynes
  Sun, 5 Apr 2015 08:49:11 -0400
  ...I rebuilt a motor that I thought had no compression when it would run for about 15 min the compression would drop off to...