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• My poor MPG, compression tests results
  Historical mailing list - Mike \"Rocket J Squirrel\" Elliott
  Wed, 12 Sep 2007 12:09:39 -0700
  The testing continues. # 1 (right front) compression > 120, plug looks normal. # 2 (right rear) compression > 120, plug also looks normal. # 3 (left front) compression...
• Re: My poor MPG, compression tests results
  Historical mailing list - Todd Last
  Wed, 12 Sep 2007 22:26:44 +0000
  Isn't it unusual that the readings are all the same? I don't think I have ever seen that in any compression check...
• "relative" compression test
  Historical mailing list - Art McGinn
  Mon, 19 Jan 2004 17:40:10 -0800
  anybody know anything about the triple-a diagnostic centers' "cylinder balance-relative compression" test, which is used in lieu of an actual cylinder compression...
• Re: How do you check compression?
  Historical mailing list - Mike S
  Thu, 13 Sep 2007 16:59:41 -0400
  ...Ultimate compression is something greater than the intake pressure X the compression ratio (greater because of adiabatic affects - compression makes the air hotter, which...
• Leakdown and compression test results
  Historical mailing list - Giasson, Pascal (DNR/MRN)
  Sat, 14 Apr 2007 23:39:21 -0300
  ...cylinder # 1 - 7.5% leakdown (compression 165) cylinder # 2 - 6.25% leakdown (compression 180) cylinder # 3 - 17.5% leakdown (compression 170) cylinder # 4 - 13...
• Re: 82 compression test
  Historical mailing list
  Tue, 25 May 1999 10:10:35 EDT
  Martin, Bentley says for an aircooled Vanagon the compression should be between 87-131psi. 73 psi is minimum and no more than a 44...
• Re: 82 compression test
  Historical mailing list - Martin Laycock
  Tue, 25 May 1999 15:24:26 +0100
  Thanks for the that....It was hot and running with each spark removed for the compression meter. Thanks again Martin Laycock At 10:10...
• Getting higher compression?
  Historical mailing list - Fryday
  Tue, 23 Apr 2002 15:43:55 -0800
  Looks like the compression is about 140 for all 4 cylinders. So what should I do to get higher compression? A bientot, Philippe '87...
• Re: Compression losses
  Historical mailing list - Mark Hollingsworth
  Wed, 6 Jan 1999 21:41:16 -0800
  Blue Eyes >The compression ratio is the numerical comparison of the >volume contained by the cylinder plus the cylinder head when >the piston is...
• Re: Update: Evaluating a "Found" Engine
  Historical mailing list - Paul Guzyk
  Fri, 7 Nov 2008 10:21:23 -0500
  Greg, Compression of 180-195 in a used waterboxer is really good. Almost too good to be true. I rarely see WBX's with...
• Re: compression testing... on the bench
  Historical mailing list - Al and Sue Brase
  Tue, 14 Feb 2006 02:34:08 -0600
  ...So, no, not really possible to check compression with meaningful results. Al Brase Tabe Johnson wrote: >It's pretty hard to turn an engine...
• Re: My poor MPG, compression tests results
  Historical mailing list - Chris S.
  Wed, 12 Sep 2007 14:43:52 -0700
  ...The testing continues. # 1 (right front) compression > 120, plug looks normal. # 2 (right rear) compression > 120, plug also looks normal. # 3 (left front) compression...
• Re: 1.9L still a problem child (update)
  Historical mailing list - Robert Cardo
  Sun, 14 Aug 2005 22:02:43 -0500
  You did a compression test after it sat on a crate for 2 years, and it had up to 170 lbs. compression. You install...
• Re: compression
  Historical mailing list - Sam Scholten
  Mon, 23 Mar 1998 06:18:20 -0800
  ---Scot Douglas <sdoug@CONCENTRIC.NET> wrote: > > Patrick Dooley wrote: > > > > >Here's the problem, just checked the compression today: > > > > > >1 100psi > > >2 100psi > > >3 150psi...
• compression testing... on the bench
  Historical mailing list - Tabe Johnson
  Tue, 14 Feb 2006 00:04:47 -0500
  It's pretty hard to turn an engine over by hand fast enough to get a realistic compression reading. I have done the bench...
• Re: My poor MPG, compression tests results
  Historical mailing list - Jake de Villiers
  Wed, 12 Sep 2007 12:28:14 -0700
  ...1 (right front) compression > 120, plug looks normal. > # 2 (right rear) compression > 120, plug also looks normal. > # 3 (left front) compression > 120, plug indicates...
• Re: Update: Evaluating a "Found" Engine
  Historical mailing list - Michael Sullivan
  Fri, 7 Nov 2008 10:11:28 -0600
  I'm looking at a compression test from the stealership that the PO did and results are:#1-120, #2-125, #3-125, #4...
• Re: More horse power from the 2.1??
  Historical mailing list
  Fri, 26 Jul 1996 16:40:05 -0400
  I (Syncrohead) said: >> Also, the pressures created by the piston compression are far higher than any turbo >>can create during the intake stroke. Sstones...
• Re: 82 compression test
  Historical mailing list - Bulley
  Tue, 25 May 1999 14:34:59 -0400
  Martin, Do you mean that the *motor was running* when you did the compression test?!? If so, your results could be very wrong. You...
• Compression Ratios
  Historical mailing list - Dave Kautz
  Tue, 28 Feb 95 9:42:59 PST
  Chris Bridge is wondering about compression ratios: An additional factor you may want to consider in selecting your compression ratio is the altitude where...
• Re: Getting higher compression?
  Historical mailing list - G. Matthew Bulley
  Tue, 23 Apr 2002 23:02:22 -0400
  And why, pray tell would you want HIGHER compression? 140 is at the top of the healthy range for our motors, unless you want...
• Re: Compression test
  Historical mailing list
  30 May 97 13:51:00 -0700
  Is it true that depending on the equipment used, a compression test may vary quite a bit? Like up to 50? jg ------------ ORIGINAL ATTACHMENT...
• Re: Several Questions about '85 Westy.
  Historical mailing list - Don Gibbons
  Tue, 28 Jul 1998 14:24:01 -0400
  Can only help you with #1 A single compression test is just a number. While if the numbers were all below say 90 psi...
• Re: How do you check compression?
  Historical mailing list - Mike \"Rocket J Squirrel\" Elliott
  Thu, 13 Sep 2007 14:28:11 -0700
  ...If the throttle is closed, the > intake pressure will be less than atmospheric (a partial vacuum), and > therefore the indicated compression pressure will be...
• Re: Compression test - cold vs hot?
  Historical mailing list - steve d
  Fri, 18 Mar 2005 17:04:02 -0000
  If the engine is a non-runner then relying on a hot compression test is going to be hard so you just got to...
• Re: compression testing... on the bench
  Historical mailing list - Max Wellhouse
  Tue, 14 Feb 2006 18:35:51 -0600
  ...It is hard to get consistent results when cranking by hand. >So, no, not really possible to check compression with meaningful results. >Al Brase...
• Re: diesel compression
  Historical mailing list - Michael Snow
  Wed, 18 Oct 2000 17:19:52 -0700
  ...diesel compression Does anyone know a good place to buy an affordable compression testing kit that is capable of measuring diesel-range pressures? (406...
• Re: Compression test - cold engine or warm engine?
  Historical mailing list - Dan Andrews
  Sun, 2 Jun 2013 15:25:03 +1000
  Compression is tested cold Todd Sent from my iPhone On 02/06/2013, at 3:00 PM, Todd Last <Rubatoguy@COMCAST.NET> wrote: > What...
• Re: Compression test
  Historical mailing list
  Fri, 30 May 1997 16:45:33 -0400
  > You can get some idea if it is rings or valves by > adding a tsp of oil to the cylinder and repeating the compression...
• Re: 1.9L still a problem child (update)
  Historical mailing list - Jonce Fancher
  Mon, 15 Aug 2005 06:48:30 -0400
  ...thanks Jonce >You did a compression test after it sat on a crate for 2 years, and it >had up to 170 lbs. compression...
• Re: How do you check compression?
  Historical mailing list - Mike S
  Thu, 13 Sep 2007 14:17:47 -0400
  At 01:43 PM 9/13/2007, David Kao wrote... >I believe a cylinder with excellent compression will give you highest >reading on the...
• Re: Compression losses
  Historical mailing list - Jim Arnott
  Thu, 7 Jan 1999 11:10:38 -0800
  ...The proper > 'corrected' > compression ratio would take into consideration how late the > valve closes > as the piston is rising on compression. The longer duration...
• Re: compression test
  Historical mailing list - Richard A Jones
  Tue, 22 Jun 2004 21:30:12 -0600
  ...In aircooled Porsche circles there is always talk about compression vs leak-down tests. Bruce Anderson, the guru of Porsche mechanical lore, always advises...
• Re: Compression losses
  Historical mailing list - Mark Hollingsworth
  Thu, 7 Jan 1999 22:21:14 -0800
  Blue Eyes >I only wanted to explain how compression leaks may occur to >someone >unfamiliar with the basics. In that context, using the >nominal...
• 1.9 engine health?
  Historical mailing list - Jonathan Farrugia
  Thu, 15 Jul 2004 05:22:51 -0400
  so i have a friend that i did a compression test for. he has a very nice 1984 westy. here are my compression test...
• Re: increasing displacement/compression on 1970cc engine
  Historical mailing list - Kent Christensen
  Sun, 23 Jan 2000 21:01:25 -0700
  ...something) to increase displacement or compression or both? Porsche 914 (purists say VW/Porsche 914) used same engine with higher compression. Possibly other differences.
• Re: Update: Evaluating a "Found" Engine
  Historical mailing list - Michael Sullivan
  Fri, 7 Nov 2008 10:10:56 -0600
  On Fri, Nov 7, 2008 at 10:07 AM, Michael Sullivan <sandwichhead@gmail.com>wrote: > I'm looking at a compression test from the...
• Re: Leakdown and compression test results
  Historical mailing list - Mike Collum
  Sat, 14 Apr 2007 22:53:47 -0400
  ...Here are my results: > cylinder # 1 - 7.5% leakdown (compression 165) > cylinder # 2 - 6.25% leakdown (compression 180) > cylinder # 3 - 17.5% leakdown (compression...
• Re: engine bay mounted starter switch?/compression test
  Historical mailing list - Ezra Hall
  Mon, 17 Apr 2000 14:31:56 -500
  Richard, I video tape my compression guage while cranking. This allows a slow motion replay afterwards so compression can be plotted vs. stroke. Keep...
• fuel pressure tester & compression tester
  Historical mailing list - Lance LeBaron
  Tue, 14 Dec 1999 06:24:44 PST
  I wish to check the fuel pressure and compression on my 84 wasserboxer per Bently directions. I also have an 82 Rabbit diesel on...
• Re: compression testing... on the bench
  Historical mailing list - John Rodgers
  Mon, 13 Feb 2006 23:21:07 -0600
  Al, One could crank it by hand to compression stroke - TDC - and do a differential compression test (leakdown test) . Should be easy done if...
• Compression specs for 1.9 liter engine ?
  Historical mailing list - John Morris
  Wed, 17 Mar 1999 23:27:54 -0500
  Hi all - I'm very close to commiting to buy a '85 Westy GL (1.9 liter) and thought a compression check would be...
• Re: Odd Compression Readings
  Historical mailing list - Larry and Avery
  Fri, 7 May 2004 07:45:13 -0400
  ...I now understand the mechanics of the worn cam and how it can result in higher compression. I also appreciate your description of testing...
• Re: Compression losses
  Historical mailing list - Blue Eyes
  Wed, 6 Jan 1999 10:33:38 -0600
  Mark wrote: "One thing often not considered on four stroke engines, the above it the way to figure uncorrected compression ratios. The proper 'corrected...
• engine compression ratio '84
  Historical mailing list - Gregory Smith
  Mon, 24 Feb 2003 20:59:53 -0800
  In my manual it says my '84 has a compression ration of 7.3:1. This sounds really low. What are the reasons and...
• Re: Compression braking & Power Loss
  Historical mailing list - Dennis Haynes
  Fri, 24 Feb 2006 11:38:00 -0500
  ...At speed, the engine compression stroke will quickly be cancelled out by the de-compression after the piston passes top dead center. When turning...
• Re: compression
  Historical mailing list - Scot Douglas
  Mon, 23 Mar 1998 06:54:55 -0500
  Patrick Dooley wrote: > > >Here's the problem, just checked the compression today: > > > >1 100psi > >2 100psi > >3 150psi > >4 155psi > > > >My book says that...
• Re: How do you check compression?
  Historical mailing list - David Kao
  Thu, 13 Sep 2007 12:00:34 -0700
  ...That's the reason it takes more strokes to get meaningful compression reading. Am I making a reasonable explanation? David --- Mike S <mikes@FLATSURFACE...
• Re: Compression Ratios
  Historical mailing list
  Tue, 28 Feb 1995 13:40:28 +0500
  > Chris Bridge is wondering about compression ratios: > > An additional factor you may want to consider in selecting your compression > ratio is the altitude where...
• Re: Compression test - cold vs hot?
  Historical mailing list - Anonymous Digest
  Fri, 18 Mar 2005 09:27:12 -0700
  ...is warmed up when the compression check it done? When Bentley and other vehicles all state the minimum compression, is it understood that this...
• Re: Results from a compression test.
  Historical mailing list
  Tue, 9 Apr 1996 02:26:43 -0400
  ...Well back to my compression test. After squirting oil in the cylinders, there was no increase in compression. I have some ideas of what...
• Re: My poor MPG, compression tests results
  Historical mailing list - David Kao
  Wed, 12 Sep 2007 12:42:50 -0700
  ...David --- "Mike \"Rocket J Squirrel\" Elliott" <camping.elliott@GMAIL.COM> wrote: > The testing continues. > > # 1 (right front) compression > 120, plug looks normal. > # 2 (right...
• Re: 85 Westy - need more POWER
  Historical mailing list - Per Lindgren
  Thu, 14 Oct 1999 17:56:20 +0200
  KENWILFY@AOL.COM wrote: > more compression, etc) As for more compression, the DJ code engine in my Syncro has higher compression than the regular...
• What should 2.1 compression be?
  Historical mailing list - Jim Felder
  Thu, 12 Jun 2008 16:53:34 -0500
  What should the compression be on a 2.1? Thanks, Jim
• Re: Results from a compression test.
  Historical mailing list
  Thu, 11 Apr 1996 12:13:17 -0700
  ...No compression can mean a bunch of things. Don't give >up so quickly. If after a valve adjustment you still have no compression...
• Re: Oil dipstick pushed out of the tube
  Historical mailing list - Allan Streib
  Fri, 3 Oct 2008 22:36:17 -0400
  ...Allan Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM> writes: > leak down test too, might be a little more useful than a compression test. > I don...
• Re: Help needed: ABA conversion has spark and fuel but won't start.
  Historical mailing list - BenT Syncro
  Fri, 29 Aug 2008 02:11:06 -0700
  ...How fast does it crank over? Too fast means low or no > compression. > Was a compression test done of this engine recently? If not...
• Re: cylinder numbers
  Historical mailing list - Ivicz_vanagon
  Sat, 19 Mar 2005 12:48:59 +0100
  ...You will feel the air > being compressed when you are on the compression stroke.If you are not > sure, go through the sequence by...
• Re: Excessive Oil Usage
  Historical mailing list
  Wed, 22 Feb 1995 18:36:11 -0500
  >Is there a good way of determining which parts are broken? >The engine is developing good compression though. If you've measured the compression...
• Re: compression test
  Historical mailing list - The corruptor
  Tue, 22 Jun 2004 17:57:53 -0400
  The very soft plugs threads are easy to striped!!! This is the main reason to do a compression test when the engine is cold...