Search messages and discussions

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 5+: 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: head compression leak again!#$%!
  Historical mailing list
  Fri, 11 Feb 2000 09:11:40 EST
  My theory is that these heads are leaking compression into the coolant from the cracks that exsist between the valves. My engine was running...
• Re: actual numerical readings off Compression test?
  Historical mailing list - Scott Daniel - Turbovans
  Sat, 18 Sep 2010 17:18:56 -0700
  ...compression ratio of a motor? I've been thinking to take a reading with my compression tester, then divide that by the barometric pressure...
• Re: Boston Bob Engine - Follow Up
  Historical mailing list - Frank Grunthaner
  Sat, 11 Aug 2001 19:20:10 EDT
  ...had a chance to re-measure the vacuum, fuel pressure and compression. Fuel Pressure at idle - 34 Connected 38-39 Disconnected Engine Vacuum at...
• fuel line problems still
  Historical mailing list - Paul Bucco
  Mon, 21 May 2001 14:11:01 -0700
  ...When it is cranked it will produce 40 pounds of pressure. When the hose is kinked between the gas tank and the fuel pump...
• Re: How the heck to prime oil pump?(Saga continues, pics on www)
  Historical mailing list - Frank Grunthaner
  Tue, 10 Jul 2001 02:41:07 EDT
  ...The spring pressure reset is not a problem in that there is an inner land to stop the retainer at the right compression distance...
• Re: water injection in vanagons, was Re: [VANAGON] Hydrogen help for the Vanagons
  Historical mailing list - Frank Grunthaner
  Mon, 31 Jan 2011 00:11:36 -0500
  ...Allow you to > run compression ratios that ought not work? Yup. Higher compression > ratio make more horsepower? Yup. Semantics. > > Jim
• Re: 2.1 WBX Coolant Loss: Searched Compression test results.
  Historical mailing list - Dennis Haynes
  Sun, 3 May 2015 10:16:18 -0400
  ...However, a compression test alone is often a waste of time. Combined with a leak down test you would know if you have a...
• Advice...temp to high.... after new parts....
  Historical mailing list - Benny boy
  Mon, 4 Jul 2005 18:55:23 -0400
  ...Engine compression is crasy, 185, 160, 90, 80... slight lost of coolant (pressure test) but not much (my tester is kind of old)... Work...
• Head gasket again...
  Historical mailing list - Richard Bias
  Tue, 14 Mar 2000 06:00:19 PST
  ...I had compression pressure in the coolant system. I understand that I may have not had the heads "sand blasted" cleaned the first time...
• Oil P&T sensor - Vanagon application
  Historical mailing list - MICHAEL PJETRAJ
  Wed, 3 Dec 1997 12:38:58 EST
  ...but w/ H2O cooling?) General - if compression is good (heads have been re-done) would the low pressure be indicative of lower end problems...
• Re: Substituting 1.9 with 2.1 would that end my bad luck streak???
  Historical mailing list - Jason
  Mon, 24 Apr 2017 20:36:17 -0400
  ...Often compression problems are the result of neglect, > abuse, or overheating. More important than compression is oil pressure when > hot. Oil pressure problems usually...
• Re: low rpm flat spot
  Historical mailing list - Joel Walker
  Thu, 10 Nov 94 21:01:44 CST
  ...zero compression, the chances are even greater than the oil pump is to blame. If the oil pressure relief valve sticks, oil pressure could...
• good 2.1 WBX motor for sale, complete
  Historical mailing list - Richard A Jones
  Wed, 25 Nov 2009 10:58:58 -0700
  ...Good compression and old pressure; no leaks. Have records since about 80,000 miles. This motor has taken me on many great adventures and...
• Re: Emergency compressor
  Historical mailing list - Dave Bayer
  Mon, 8 Nov 1999 15:26:48 -0800
  ...with a pressure valve at one end and a 14x1.5 threaded tube at the other? Why not use a compression tester hose and...
• Re: lifters for new engine? - and increased stroke
  Historical mailing list - John Connolly
  Mon, 24 Mar 2003 11:12:44 -0700
  more volume equals more head DURING COMPRESSION. It also means more power (more displacement affects both). The advantage of stroke is the displacement AND...
• Oil Pressure light '83.5 Westy
  Historical mailing list - Charles D Earl
  Fri, 17 Jan 1997 14:42:15 -0800 (PST)
  ...is basically unrelated to pressure anyways), it runs just like normal (very well, also recent major tune-up w/compression test) and has not...
• Re: Engine Advice Needed
  Historical mailing list - Craig Cowan
  Sat, 24 May 2014 12:57:31 -0400
  I would not refer to that oil pressure as "good", I would go with " terrifyingly high". If it were 7psi I'd call it...
• Re: Should I really bother with oil pressure test?
  Historical mailing list - Dennis Haynes
  Mon, 1 Jun 2009 23:36:36 -0400
  ...Should I really bother with oil pressure test? My '85 with 1.9 and around 170,000 miles is gettin old and tired. When...
• Oil Pressure Light on-need help! (dealer cant fix it)
  Historical mailing list - JR Denton
  Fri, 4 Apr 2008 18:59:49 -0400
  ...Here are the particulars on the van- - 74K orig miles on engine- dealer check compression/head leaks/oil pressure- all check out perfect - The...
• Re: Low Compression, Longevity of the WBX'er and $20K Vans
  Historical mailing list - Stuart MacMillan
  Tue, 11 Sep 2012 17:39:51 -0700
  ...I've found these engines do give you several warnings before they fail, whether it's coolant leaks, low oil pressure, rod knock, noisy...
• Re: Flashing coolant light?
  Historical mailing list - Larry Alofs
  Tue, 28 Aug 2001 11:34:35 -0500
  ...in the pressure tank and you have a good pressure cap, "air" may be getting into the system thru a compression leak at a...
• Re: Low Compression, Longevity of the WBX'er and $20K Vans
  Historical mailing list - Stuart MacMillan
  Tue, 11 Sep 2012 19:13:02 -0700
  ...Low Compression, Longevity of the WBX'er and $20K Vans That was the PO who was averaging 3700 miles a year. This Westy is...
• Re: compression testing procedure
  Historical mailing list - The Bus Depot
  Tue, 28 Apr 1998 10:32:28 -0100
  ...Nowhere did it help the pressure to add 30 weight oil to > the cylinder before retesting. When I retested 1 and 3, the engine...
• Re: 89 2.1 compression questions
  Historical mailing list - Jonathan Farrugia
  Tue, 16 Mar 2004 05:15:04 -0500
  ...jonathan On Mon, 15 Mar 2004, Chip Turpin wrote: > The 2.1 in my 89 syncro is showing low compression , 110, 132, 150, and...
• Re: blown brake line
  Historical mailing list - Mr.mds
  Wed, 12 Aug 2009 23:43:19 -0400
  ...In all honesty I also bought 3/16 brass compression fittings (says not to use them on brake lines) and I'm thinking about...
• Re: More horse power from the 2.1??
  Historical mailing list
  Fri, 26 Jul 1996 11:12:19 -0400
  ...Also, the pressures created by the piston compression are far higher than any turbo can create during the intake stroke. Jim Davis 87 GL...
• Re: Strange won't run issue ..was catastrohic Failure
  Historical mailing list - Scott Daniel - Turbovans
  Mon, 25 Jul 2011 16:26:05 -0700
  ...Strange Catastrophic Failure > | > |A 75 psi difference in compression pressures would bother me, > |bother me a lot. > | > |Rob > |becida@comcast.net > | > |At 7/25...
• Oil analysis on worn engine
  Historical mailing list - Stuart MacMillan
  Wed, 5 Jun 2013 14:51:08 -0700
  ...No surprise with the low compression in two cylinders. Iron could be from a worn cam and lifters as well as cylinders and rings...
• Re: Engine Advice Needed
  Historical mailing list - mark drillock
  Sat, 24 May 2014 16:54:00 -0700
  I have used the method I suggested to get a low reading cyl or two up to normal pressure on several wbx engines. Through...
• Re: 87 Vanagon Crisis [long]
  Historical mailing list - Brent Christensen
  Thu, 15 Apr 1999 09:28:17 -0700
  ...This can be confirmed pretty easily with a "wet" compression test. You first do a standard compression test, note the numbers (I *think* 155...
• Re: OIL warning light up
  Historical mailing list - Dennis Haynes
  Wed, 23 Jul 2008 10:11:58 -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...
• Re: extremely high coolant pressure
  Historical mailing list - Joe Romas
  Thu, 20 Dec 2001 20:52:59 -0500
  Run a compression check. Yes the pressure cap could be bad but you could also have a leaky head gasket. (sorry) Joe ----- Original Message...
• Re: 1982 Air Cooled with compression 110, 110, 115, 115
  Historical mailing list - Benny boy
  Tue, 1 May 2007 00:19:47 -0400
  ...pressure will be low. > >Jake > >On 4/30/07, Burdett, Jean-Pierre <jp.burdett@spotwave.com> wrote: >> >> Hi Guys, >> >> I just did a compression...
• passed DE inspection
  Historical mailing list - Karl Ploessl
  Mon, 26 Apr 2004 11:46:14 -0400
  ...2469 (2200) (my mechanic did an oilchange/~filter, tune-up (new points, spark plugs and a new oil pressure switch) before hand) compression was...
• altenator light
  Historical mailing list - Jason Willenbrock
  Mon, 24 Jan 2000 12:22:20 EST
  ...would the lifters or cam follower make such noises, if so would a compression test reveal problems, i did a test and compression was...
• Re: cause and effect, or not
  Historical mailing list - Max Wellhouse
  Tue, 18 Oct 2011 18:19:43 -0500
  ...tank he changed the fuel >filter, no help. >Checked compression, all ok. >Did fuel pressure and fuel delivery test, all good. >Unhooked intake snorkel...
• what with cold weather coming up ...
  Historical mailing list - Joel Walker
  Wed, 15 Nov 95 08:21:52 CST
  ...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: Compression check procedure question
  Historical mailing list - mark drillock
  Sun, 19 Sep 2004 10:40:53 -0700
  ...The fuel system retains pressure for a very long time after the fuel pump is off. The injectors will still spray a lot of...
• Re: Oil dipstick pushed out of the tube
  Historical mailing list - John Bange
  Thu, 2 Oct 2008 21:16:58 -0700
  ...Might want to check your compression. It's not shooting the stick out, so there'sobviously not a BIG crankcase pressure problem. -- John Bange...
• Re: Not passing smog, still... Need help!
  Historical mailing list - Doktor Tim
  Sat, 24 Aug 2002 19:26:54 -0700
  ...wrote: >Doktor Tim, > >The compression is (in cyl order) 130, 128, 132, 98-100 (most likely rings). >Fuel pressure is good per test I...
• Re: what clues about engine health can I get...
  Historical mailing list - Kenneth Lewis
  Tue, 15 May 2012 07:49:40 -0400
  ...If you are not going to use the engine for a while, just leave them off to relieve pressure on the springs and hydraulic...
• Re: 52 degree Inline 4 hydraulic lifters leaking down
  Historical mailing list - Bill MacLachlan
  Mon, 14 Apr 2008 12:30:25 -0700
  ...I understand that if compression is lost because a valve is open, - it's excess oil pressure that's opening the valve, not the...
• Re: valve cover gasket
  Historical mailing list - John Rodgers
  Sun, 28 Jan 2001 05:13:58 -0600
  How does your engine run? When was the last time you had a compression done? I developed a problem on my 88 GL and...
• vacuum gauge diagnostics
  Historical mailing list - Craig Oda
  Thu, 7 Oct 2004 22:23:38 -0700
  ...I have a vacuum gauge tapped into a "T" on the vacuum line going into my fuel pressure regulator. I don't know how...
• got my van inspected and it passed
  Historical mailing list - Karl Ploessl
  Fri, 5 May 2006 11:26:23 -0400
  ...2384 (2200) (my mechanic did an oilchange/~filter, tune-up (new points, spark plugs and a new oil pressure switch) before hand) compression was...
• leak tests
  Historical mailing list - gary hradek
  Mon, 31 Mar 2003 12:27:38 -0800
  ...reason that it will show up in _both_ a compression and a coolant system pressure test? Maddeningly and/or luckily, I took the bus...
• Re: Best way to judge life left in Waterboxer?
  Historical mailing list - Frank Condelli
  Wed, 9 May 2012 05:45:09 -0400
  ...a compression test, what = > will > you do if it's low (and it will be)? The death signal is when the oil > pressure light...
• Re: Zero Compression after Head Re-torque - Valves? Overtorque?!
  Historical mailing list - kenneth wilford
  Sat, 28 Jan 2017 18:02:53 -0500
  ...I may have OVER torqued or done something stupid > because the compression went down to 0- little to no resistance… have I put > the...
• Re: diesel compression testers
  Historical mailing list - mark drillock
  Sat, 19 Mar 2005 19:26:31 -0800
  ...As long as the injectors are out I go ahead and test their spray pattern and pressure specs with my Bosch diesel injector tester...
• FW: [Audi-VW-Diesels] Some questions...on a diesel engine in a va nagon
  Historical mailing list - Carrington, Tom
  Tue, 29 Aug 2000 10:53:20 -0400
  ...known good oil pressure & compression pressure - ideally, not too far from SE Michigan Thanks... steve -------------------------- eGroups Sponsor -------------------------~-~> GET A NEXTCARD VISA, in 30 seconds...
• Re: Manifold vacuum specs?-Leak down testing
  Historical mailing list - Dennis Haynes
  Sat, 30 Dec 2006 23:26:36 +0000
  ...Remove the airflow meter and coolant pressure cap while doing this. If the air forces coolant out of the expansion tank, then you know...
• Seeking Advice for Sluggish Performance
  Historical mailing list - Zoran Mladen
  Wed, 1 Aug 2001 09:18:43 -0600
  ...Recently replaced muffler and catalytic converter New spark plugs Compression between 135-150 Cap/rotor almost new Clean air filter Fuel pressure - 34 at...
• Re: 84 Westy strange compression readings
  Historical mailing list - Ben huot
  Mon, 11 Mar 2002 02:38:44 -0500
  ...A cooling system pressure tester can be installed in place of the radiator cap. Pressure in the cooling system and hot coolant are not...
• Re: Compression braking & Power Loss
  Historical mailing list - dooley
  Fri, 24 Feb 2006 12:56:48 -0500
  ...As I have always > understood it, in gasoline engines, "compression braking" relied on > the compression stroke to provided resistance to slow down the vehicle...
• Re: frequency/probability of new heads vs. gaskets only?
  Historical mailing list - Doktor Tim
  Tue, 15 Feb 2000 11:55:09 -0800
  ...If compression balance is weak, new heads only unless followup leak down shows the pressure loss at rings only. Anyone who stated they can...
• Re: 1.9L still a problem child (update)
  Historical mailing list - Jonce Fancher
  Sun, 14 Aug 2005 22:35:21 -0400
  ...did a compression check to find it had 165 to 170 per cylinder. after installing it i got up the oil pressure and timed...
• COLD START PROBLEM!!!!!!!!! anyone!!!!!
  Historical mailing list - Benny boy
  Mon, 1 Aug 2005 14:44:02 -0400
  ...I feel that i have a fuel pressure ploblem... but am not sure... fuel pressure is ok.... Compression: ok Help Ben http://www.benplace...
• Re: Diagnosing a low (8-10 inches) vacuum gauge reading
  Historical mailing list - Daniel L. Katz
  Sun, 8 Aug 2004 15:51:54 -0400
  ...the pressure cap > >The compression could be 140 150 cold and 80 hot if you are reading the vacuum hot and the >compression cold...
• Re: Compression tester question
  Historical mailing list - neil N
  Fri, 16 Nov 2007 11:25:04 -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...
• 1.8 litre help
  Historical mailing list - Jeff Palmer
  Sun, 1 May 2022 00:26:50 -0500
  ...We have replaced spark plugs, fuel filter, fuel pressure seems ok, compression also ok. I believe 1.8s are digifant. Anybody out there familiar...