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Page 25+: 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: Oil analysis on worn engine
  Historical mailing list - Stuart MacMillan
  Wed, 5 Jun 2013 16:08:57 -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: Van won't run right - troubleshooting help, more
  Historical mailing list - HotelWestfalia
  Fri, 30 Sep 2011 21:00:55 -0700
  ...I checked compression >> in >> #4, and it's normal. >> >> So it's getting spark, fuel, air and as compression. I can't believe it...
• Re: Moral qestion--Now diagnostics
  Historical mailing list - jon
  Thu, 18 Jan 2007 12:45:30 -0800
  ...Check the fuel pressure > and function of the fuel pressure regulator. Try tightening the AFM spring > some. Be sure to keep track of the...
• Re: help diagnosing possible coolant system/ engine damage
  Historical mailing list - jimt
  Thu, 7 Oct 2004 21:46:12 -0600
  ...Then to be > sure, go for a compression/leakdown test and maybe test the oil > pressure. If no weird noises, go drive and enjoy...
• Re: last questions on 84 Vanagon
  Historical mailing list - Jonathan Lee
  Mon, 30 Oct 2000 01:20:01 -0800
  t wrote: > Ya never know. > Did you do a compression test on it? Having one done tomorrow morning. > Did you look at the coolant...
• Re: Is this the Vanagon Syndrome?
  Historical mailing list - Joseph Fortino
  Mon, 2 Dec 2002 09:11:24 -0800
  compression ok? or something is getting hot? fuel pressure reg cap good? i did the cap fix and it felt like it took it...
• New Motor completed, leaks oil, burns, smoke fills cockpit, recovers!!!
  Historical mailing list - Bulley
  Tue, 20 Jul 1999 22:01:20 -0400
  ...The compression is 8.5-1 versus the original 7.4-1. I was punctilious and surgical in my assembly practices... So we get...
• Re: Air bubbles in coolant 2.1 wbx
  Historical mailing list - Dennis Haynes
  Sun, 5 Jun 2016 01:54:44 -0400
  Sounds like you have loose or cracked heads, I would first test or have tested the pressure cap. New does not equal good with...
• Re: Question about barrel spacers
  Historical mailing list - Tom Young
  Mon, 17 Feb 2003 14:56:47 -0800
  ...shims from the Bus Depot - I'm going to > > increase > > the compression ratio of one of the engines slightly - and these too > > have > > ridges...
• Re: dead cat kills van
  Historical mailing list - Doug Alcock
  Thu, 19 Mar 2009 23:07:44 -0400
  ...Compression check was good and fuel pressure read fine. Injectors > sprayed in pulses as expected. > > I saw his cry for help on the Samba...
• Re: 5/16" High Pressure Fuel Lines OK?
  Historical mailing list - John Lauterbach
  Fri, 29 Dec 2006 12:07:23 -0500
  ...I have used these for plumbing hydrogen at 125 psig and various flammable liquids at pressures to 6000 psig. Those applications were in industrial...
• Re: Friday: New VW Engine--it's Miller (cycle) time
  Historical mailing list - James
  Sat, 30 Apr 2016 22:53:23 -0400
  ...An increase in the geometric compression ratio has, > > > according to VW, allowed for improved efficiency in the load range most > > > customers will actually use...
• Re: Westy foam replacement question
  Historical mailing list - Neil N
  Sun, 8 May 2016 23:25:55 -0700
  ...The seat lid brace is put under more pressure though >> so I don't really trust it. >> >> I asked foam guy for "sitting" foam...
• Re: Coolant mystery
  Historical mailing list - Scott - IMAP
  Sat, 18 Jun 2016 12:48:37 -0700
  Hi, not likely to happen on exhaust stroke, but compression stroke for sure. The pressure developed there is super high ...numerous hundreds of psi...
• Re: Strange Vanagon problem in Belize
  Historical mailing list - craig cowan
  Wed, 12 Jan 2011 23:40:31 -0500
  ...Check compression. > > I havn't heard you say anything about throttle switch .. > 'most' 2.1 waterboxer engines that don't get frequent intelligent competent...
• Re: Was: Leaky ... fuel injector? Now: suck fuel/air through vaccum side of fuel regulator?
  Historical mailing list - neil N
  Mon, 12 Nov 2007 11:30:34 -0800
  ...It will not need a lot of pressure. Slowly push the oil > in. You will feel the galleys fill and keep pushing some more...
• Re: First ride of shame, fuel issue
  Historical mailing list - Edward Maglott
  Tue, 30 Jul 2019 15:49:01 -0400
  ...If so then > compression and leak down test. Sounds like 1 or 2 valves are stuck open. > If any of the push rods are...
• Re: '82 diesel
  Historical mailing list - Joel Hembel
  Tue, 27 Oct 1998 21:13:02 -0600
  ...A compression test may also be a smart idea? It shows the overall health of a diesel engine. Anyway my head and engine turned...
• Re: Not passing smog, still... Need help!
  Historical mailing list - Steven Dodson
  Sat, 24 Aug 2002 17:33:56 -0700
  ...Need help! Danke, Her Keller! The compression test today showed might fine compression in all but #4. #1=130, #2=128, #3=132 and...
• Re: Propane lines
  Historical mailing list - Walking Boss
  Fri, 3 Apr 2015 12:31:14 -0500
  ...You will always find a “double flare” on brake and high pressure fuel lines. The tool looks the same except it comes with small...
• Re: Tough driving
  Historical mailing list - Stan Wilder
  Sat, 30 Jun 2001 16:26:24 -0500
  ...altitude due to the > increased atmospheric pressure. Because the air-cooled engine has a > much lower compression ratio than the waterboxers, it is lower...
• Bus is home
  Historical mailing list - Randall Carpenter
  Tue, 2 Jul 96 19:41:38 -0500
  ...since it has a oil pressure control valve. The engine turns but I'm told has low compression. I'm planning a rebuild. So...
• Re: Fuel Injection (Long)
  Historical mailing list - Mike Finkbiner
  Wed, 23 May 2001 03:38:21 -0000
  ...Mark and a couple of others have suggested that it's not the cam, but the fuel pressure regulator (FPR) or the air flow...
• Re: WBX failure rate averages so far.. keep up the responses!
  Historical mailing list - Max/Joyce Wellhouse
  Tue, 29 Aug 2000 12:25:32 -0500
  ...Compression after the Boston Bob rebuilt heads didn't change( is low and somewhat lopsided ) and the oil pressure under 100 degrees C. still...
• Re: Engine o2 out of spec
  Historical mailing list - Darrell Boehler
  Fri, 10 Nov 2000 06:44:49 -0600
  ...Test fuel pressure, test / clean the injectors (be sure you have a balanced set). Check for exhaust and vacuum leaks, check compression, and that...
• Re: [Lifter Thoughts]
  Historical mailing list - Joe Fortino
  Wed, 6 Jun 2001 10:00:35 MDT
  ...It may help some, but I think it thins the oil some and my oil pressure is low enough, thank you. Some have said...
• Re: Help on buying '87 Westy
  Historical mailing list - Shawn Wright, SMUS Network Analyst
  Thu, 21 Dec 1995 08:29:12 PDT
  ...Help on buying '87 Westy > OK, at least get a compression test done, should be over 120-125 and all > even, max 5-10psi...
• Re: Moral qestion--Now diagnostics
  Historical mailing list - Anthony Egeln
  Thu, 18 Jan 2007 14:57:44 -0800
  ...Check the fuel pressure and function of the fuel pressure regulator. Try tightening the AFM spring some. Be sure to keep track of the...
• Re: brake lines and hoses? Snarkiness!
  Historical mailing list - Dennis Haynes
  Tue, 10 Jan 2012 18:29:34 -0500
  ...I just finished water pump, engine bay coolant hoses, fuel lines, gas tank reseal and a new steel power steering pressure line, so the...
• Re: Moral qestion--Case in point
  Historical mailing list - Geza Polony
  Thu, 18 Jan 2007 15:18:41 -0500
  ...Not? On Thu, 18 Jan 2007 19:50:33 +0000, Dennis Haynes <dhaynes@OPTONLINE.NET> wrote: >Looking at your compression numbers, A leak down...
• Re: Moral qestion--Now diagnostics
  Historical mailing list - Mike Collum
  Thu, 18 Jan 2007 15:30:37 -0500
  ...New O2 sensor with good ground, tested good on car. >>> Compression 155-155-145-130. No oil burning, no coolant leaks, no smoke, >>> plugs...
• Re: Moral qestion--Now diagnostics
  Historical mailing list - Geza Polony
  Thu, 18 Jan 2007 16:10:02 -0500
  ...Check the fuel pressure >> and function of the fuel pressure regulator. Try tightening the AFM spring >> some. Be sure to keep track of the...
• Re: 88 GL - Oil Cooler R&R
  Historical mailing list - Dennis Haynes
  Sat, 4 Jan 2014 21:14:30 -0500
  ...The design of the cooler sets the compression off the ring. Dennis, From my phone. ________________________________ From: JRodgers<mailto:jrodgers113@GMAIL.COM> Sent: ‎1/‎4...
• Re: seeking Air Cooled info/advice (82 Westy)
  Historical mailing list - 80 Westy Pokey
  Wed, 18 Sep 2002 18:49:21 -0400
  ...seeking Air Cooled info/advice (82 Westy) > >Mah advice to yew... > >Check compression. All cylinders of the old engine. If everything is up >to...
• Re: Air bubbles in coolant 2.1 wbx
  Historical mailing list - John Rodgers
  Sat, 4 Jun 2016 21:01:33 -0500
  ...I assume the air had bled out some time ago. > > Am I looking at a compression leak at a cylinder(s) or is it...
• Vexing Subtle Misfire Issues
  Historical mailing list - John Bange
  Sun, 22 Apr 2007 17:17:00 -0700
  ...The question is, which "tire" should I start with? Hall sender? Injectors? Fuel pump? Fuel pressure regulator? I think I'm leaning towards Injectors...
• Re: cracked AMC heads question
  Historical mailing list - Scott Daniel - Shazam
  Sun, 9 Sep 2007 20:32:25 -0700
  ...You 'could' get them pressure tested if you're worried, You can also peen the cracks shut with a hammer and punch. Fwiw - ..judging...
• Re: Coolant Overpressurization / Head Gasket Leak
  Historical mailing list - Scott Daniel - Turbovans
  Sat, 26 Jan 2013 18:05:49 -0800
  ...I opened the pressure cap a little bit at a time > and a lot of coolant pushed out - this on a stone cold engine...
• Re: Koni Shock adjustment?
  Historical mailing list - Don Hanson
  Tue, 4 Jan 2011 16:03:39 -0800
  It is my understanding that adjustable Konis...you can only adjust the Rebound, not the compression rate. If you are feeling "harsh"...it's...
• Re: [vjmc] tune up sequence- Timing Tools
  Historical mailing list - Greg Potts
  Fri, 15 Jun 2007 08:43:35 -0400
  ...where just by hand turning, pressures build > up and suddenly release, unless plugs are pulled to relieve > compression, > well, it's tough. A timing...
• Re: Not passing smog, still... Need help!
  Historical mailing list - Dennis Haynes
  Thu, 22 Aug 2002 21:19:07 -0400
  A compression test can be deceptive and does not tell where the problem really is. Oil can seal a valve as well as the...
• pissing and moaning coolant
  Historical mailing list - gary hradek
  Thu, 29 May 2003 08:07:14 -0700
  ...It is time to do a compression check. It is likely that a head has headed south and anyone who bled the system may...
• Re: Valve seat drop on 81 vanagon
  Historical mailing list - Daniel Schmitz
  Mon, 24 Jul 2000 10:50:47 -0700
  Francois, The oil light on the 81 van's dash will be for oil pressure, not temperature. It gets it's signal from the...
• Re: wonky temp gauge?
  Historical mailing list - Dennis Haynes
  Fri, 24 Jun 2011 06:25:56 -0400
  ...That is a definite sign of a system not holding pressure and/or incorrect coolant mix. The gurgling means that not all parts are...
• white clouds out of the exhaust
  Historical mailing list - Bill MacLachlan
  Mon, 29 Sep 2008 11:57:36 -0700
  ...blocked oil pressure relief valve- high oil pressure- hydraulic lifters- open valves- no compression. Nothing to do with the parts I paid for. #3...
• Re: idle and black tower
  Historical mailing list - Dennis Haynes
  Wed, 26 Apr 2006 20:27:53 -0400
  ...i have not measured the compression, but the engine is "loose", as it doesn't stop turning immediately on shut-down, and the engine...
• Re: Fuel Injection (Long)
  Historical mailing list - Karl Wolz
  Tue, 22 May 2001 22:35:10 -0700
  ...Mark and a couple of > others have suggested that it's not the cam, but the fuel pressure regulator > (FPR) or the air flow...
• Running on all three - the saga continues
  Historical mailing list
  Sun, 06 Oct 1996 11:34:56 EDT
  ...it seems pressure in #3 cylinder is down to 30lbs. when it is hot, and not burning the fuel efficiently. Gas is getting into...
• Re: 85 octane in Colorado and 'windage trays'
  Historical mailing list - Stan Wilder
  Mon, 15 Jul 2002 09:21:19 -0500
  ...that vehicles > perform > > poorly at high altitudes (in addition to lower compression). Some > of > > these are: > > Partially clogged Catalytic Converters, Ignition degraded from > long...
• Fw: Re: dead cat kills van
  Historical mailing list - AD Felder
  Thu, 19 Mar 2009 20:19:39 -0700
  ...Compression check was good and fuel pressure read fine. Injectors sprayed in pulses as expected. I saw his cry for help on the Samba...
• Re: Head gasket leak - does retorquing work?
  Historical mailing list - Ben huot
  Mon, 13 May 2002 15:03:26 -0400
  ...in oil), I am pretty sure that the coolant pressure exceed the oil pressure in the bottom of the cylinder (But that is only...
• '76 westy (sniff!) FOR SALE
  Historical mailing list - Richard Copley
  Mon, 3 Apr 1995 12:18:43 -0700 (PDT)
  ...Dipstick oil temp sender in place, and I have all the parts to install a dual sender oil pressure gauge but never got to...
• Re: First ride of shame, fuel issue
  Historical mailing list - Steven Johnson
  Tue, 30 Jul 2019 16:03:51 -0400
  ...If so then > > compression and leak down test. Sounds like 1 or 2 valves are stuck open. > > If any of the push rods are...
• Re: I'm stumped! (misfire)
  Historical mailing list - Darrell Boehler
  Sat, 23 May 1998 09:09:58 -0500
  ...Checked compression and did leakdown test. Both >good. >7. Checked fuel pressure at idle and at rpm. both good. >8. Checked injectors. Seem to...
• Re: Ethanol
  Historical mailing list - H Steven Dolan
  Mon, 7 Nov 1994 21:59:54 -0800 (PST)
  ...Alcohols, despite (or perhaps because of) their lower BTU value evaporate and burn at even lower temps/pressures than gasoline. Diesel fuel doesn't...
• AVP 2.0 Vanagon AC engine FS
  Historical mailing list
  Mon, 3 Feb 1997 22:27:54 +0000
  ...Oil pressure excellent but I forget what (only hooked up gauge once to verify). Achieves 16-17 mpg in '81 Vanagon Westy (about average...
• Re: Billy Bones' never ending story
  Historical mailing list - Gary McEachern
  Sat, 13 Mar 2004 03:50:37 -0500
  ...Compression, based upon my Sears Actron >> > compression tester is 125, 130, 130, and 135. >> > Those numbers are with all of the plugs >> > removed and...
• Re: Air Fuel Mixture Logic
  Historical mailing list - EMZ
  Sun, 28 Dec 2003 10:20:57 -0500
  ...system checks out and fuel pressure is to specification. > - valves were readjusted (after they pumped up) and compression is now > 110-120 in all...
• Re: NVC-Was: Driving on Air
  Historical mailing list - Jim Felder
  Sun, 9 Nov 2008 20:21:35 -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...
• Re: Fuel Injection (Long)
  Historical mailing list - Jay L Snyder
  Wed, 23 May 2001 09:00:43 -0400
  ...Mark and a couple of others have suggested that it's not the cam, but the fuel pressure regulator (FPR) or the air flow...