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 21+: 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 leak
  Historical mailing list - kenneth wilford (Van-Again)
  Tue, 12 Feb 2013 14:36:06 -0500
  ...Have you done a compression test or leak down test on it? That would be the next step as a leak down test would...
• Re: 2.1 WBX Coolant Loss: Searched
  Historical mailing list - Kevin Duvernay
  Wed, 29 Apr 2015 07:28:57 -0500
  ...it takes a while at hot temps for the coolant to get to those pressures). Don't go much over 15 PSI. The Gowesty...
• Re: Thirsty motor with low power to 2,500 rpms. What's up?
  Historical mailing list - Chris S
  Thu, 15 Oct 2009 01:33:31 -0400
  ...Any idea what the fuel pressure regulator is doing? The AFM track check is a good idea too. 2009/10/14 Greg Potts <greg...
• Re: High elevation adjustments
  Historical mailing list - Clive Smith
  Tue, 9 Jul 2002 13:44:50 +0100
  Good idea to check the compressions of course. And I presume the reference to O2 sensor means that together with the AirFlowMeter the mixture...
• tiico intake manifold and Motronic MP 9.0 info
  Historical mailing list - Ed McLean
  Thu, 3 Jan 2002 23:01:02 -0500
  ...The ACC engine is a 9:1 compression ratio 1800cc engine. If this head is put on a 2.0L engine, the compression ratio...
• Re: Best way to judge life left in Waterboxer?
  Historical mailing list - Scott Daniel - Turbovans
  Tue, 8 May 2012 21:34:40 -0700
  ...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: Engine running badly
  Historical mailing list - Lovemyairedales
  Mon, 2 Oct 2017 09:40:10 -0400
  ...The other possible cause is a bad hose between > fuel pressure regulator and intake plenum. (hose has a vacuum leak) > > If you're seeing...
• Re: Heads back on, runs OK and dies
  Historical mailing list - Benoit Huot
  Mon, 31 Mar 2008 14:12:27 -0400
  ...I'm saying it's your problem, but it was, again, the fuel pressure regulator. Lately, i don't know why at all, they...
• 90 Carat: A/C Dying Diagnosis Confirm Please
  Historical mailing list - Mark B. Magee
  Tue, 23 May 2000 20:14:24 -0500
  ...3) He next checked head pressure and could only get 150 bs maximum out of high side w/unit running wide open, at this...
• Re: Was: dead cat kills van- What About Bad Gas
  Historical mailing list - Scott Daniel - Turbovans
  Sat, 21 Mar 2009 18:51:18 -0700
  ...and right there is a good reason I like a fuel pressure gauge on it while sorting through this. you see the fuel pressure...
• Fwd: 87 Volkswagen Vanagon, Poor-idle/Hesitation
  Historical mailing list - Patrick Foltz
  Wed, 10 Jun 1998 06:50:24 EDT
  ...one has been able to fix it. Compression is at 120lbs.+ #1 thru #4. Fuel pressure regulator, air flow meter, injectors and injector plugs...
• Re: Cooling Intake Air?
  Historical mailing list - Arnold Schultz
  Fri, 21 Jun 1996 23:26:51 -0700
  ...In the combustion chamber prior to ignition you would like to have lots of dense cool air and low pressure, in such that the...
• Re: water pump #4 in a year, vent hole leak
  Historical mailing list - zampano
  Mon, 12 May 2003 17:52:05 -0700
  ...I will do a compression test AGAIN anyways. The thing, or "thingy" would be that consistently I have had the water pumps leak, whether...
• Re: Battery light comes on above 3200 rpm
  Historical mailing list - Gregg Carlen
  Wed, 8 Apr 2020 22:45:14 -0400
  ...new (less than ten minutes service) belt with "thumb pressure" meaning about 25 lbs pressure; and 0.6" on a belt that's been...
• Re: First trip with to be named Vanagon - some "excitement"
  Historical mailing list - Greg Potts
  Wed, 3 Sep 2008 11:43:10 -0400
  ...CHT is the first gauge you should buy; oil pressure and temp can always be added later. My baywindow (1.7L type4) runs with...
• Re: Push Rod Tubes
  Historical mailing list - tbill
  Thu, 22 May 1997 15:23:57 -0500
  ...His > diagnosis was that the compression is fine, the pressure test on the > radiator is fine (even though it leaks coolant out of the...
• Re: GOWESTY AFM no start problem
  Historical mailing list - Scott - IMAP
  Sun, 3 Jul 2016 13:27:09 -0700
  ...I >> know many don't care but that is why our engines are low compression and >> de-tuned. The only thing our engines have...
• Re: Spark plug gap-Tire air!
  Historical mailing list - Don Hanson
  Sun, 11 Mar 2012 08:01:45 -0700
  From my records, filling race tires with nitrogen reduced the inflated pressure *increase* by almost 4psi on my racecar. Doesn't sound very significant...
• Re: 1.9 Digifant with poor milage and low top-end power.
  Historical mailing list - Gregory Smith
  Thu, 25 Feb 2010 22:13:42 -0700
  ...Applying vacuum by sucking on a hose connected to the pressure regulator will reduce fuel pressure to 25 PSI until I let go; then...
• Re: '88 engine knock diagnosis
  Historical mailing list - Eric Zeno
  Tue, 19 Oct 2004 11:21:58 -0400
  ...compression > seems > ok (first stroke 90-100 tops at 140-150 for all 4). Starts and idles fine > with slight roughness. The oil pressure...
• Re: Overheating symptoms?
  Historical mailing list
  Tue, 19 Mar 1996 22:32:03 -0700
  ...Start with oil pressure. Don't drive your >bus hard if the pressure drops below 25 psi under load. It's probably >overheated at...
• Re: Strange Catastrophic Failure
  Historical mailing list - Karl Wolz
  Wed, 27 Jul 2011 10:06:02 -0700
  ...PM, "Rob" <becida@comcast.net> wrote: |> |>A 75 psi difference in compression pressures would bother me, |bother me |>a lot. |> |>Rob |>becida@comcast.net...
• Re: nuts vs head gasket job
  Historical mailing list - Jim Felder
  Thu, 5 Sep 2013 12:29:51 -0500
  ...I need to make a cap tester > >> and/or > >> >> run the van with a pressure gauge on the expansion tank when the van > is...
• Re: Is this the cause of my engine compression problem?
  Historical mailing list - Dennis Haynes
  Thu, 14 Jun 2007 11:32:13 -0400
  ...You need to do a leak down test to quantify the leak and then full air pressure to determine where the leak is. As...
• Diesel and Gasoline facts (long)
  Historical mailing list - Bj�rn
  Tue, 26 May 1998 10:43:33 -0700
  ...Because the combustion process is "softer" a Diesel can stand much more pressure and therefore compression is often enhanced by a turbocharger which uses...
• Replacement engine - necessary, advisable ?
  Historical mailing list - James Adams
  Tue, 12 Feb 2002 14:37:59 -0800
  ...The oil pressure is 29 at 2000 RPM, which I was told is the very low end of the spectrum. The compression is good...
• Re: Considering I4 swap: 1.8 89 Golf vs. 1.8 VW Fox (90?)
  Historical mailing list - David Marshall
  Sat, 28 Jul 2001 22:35:46 -0700
  ...The Fox is a CIS based system that will give you about 85hp due to it's 8.5:1 compression ratio. The Golf...
• Re: Was: Leaky ... fuel injector? Now: suck fuel/air through vaccum side of fuel regulator?
  Historical mailing list - neil N
  Sun, 11 Nov 2007 14:07:22 -0800
  ...I would love to see if engine will run ok and has decent compression and check for coolant leaks (PO said absolutely there wern...
• Re: Overheating, smoking, rough running
  Historical mailing list - Kenneth Lewis
  Tue, 23 Oct 2007 17:03:01 -0400
  ...Finally I installed a pressure gauge in line : http://neksiwel.20m.com/cgi-bin/i/images/2gauges.jpg brought the cylinder under test to...
• Re: how to perform a leak down???
  Historical mailing list - Will Wood
  Wed, 11 Dec 1996 08:40:34 -0700
  ...can i perform a leak down test? i was checking out my > compression tester this past weekend and notice that it disconnects from the...
• Re: Pre-loading Rear Springs re Syncro Suspension (long)
  Historical mailing list - Steven X. Schwenk
  Fri, 19 Jun 1998 12:31:34 -0700
  ...Assume this to be true, and that the distance of additional compression is 1 cm....i,e, the spring is 1 cm. shorter with...
• Eurocars Reman/Rebuilt Engines
  Historical mailing list - Craig Oda's Personal email
  Mon, 21 Oct 2002 23:47:22 -0700
  ...My compression on my cylinders appear to be good #1=140psi; #2=140psi; #3=120ps; #4=130psi and there are no apparent horrible sounds...
• Re: Oil sprays all over my rear ...
  Historical mailing list
  Mon, 26 Sep 1994 09:15:46 -0400 (EDT)
  ...The diesel has a much higher (3X?) compression ratio than the gasoline engines. So, before you do any of this, check to see if...
• Re: cracks in head (cylinder head, that is)
  Historical mailing list
  Sun, 7 Jul 1996 10:45:06 -0500 (CDT)
  ...Cylinder compression check >2. Do you have coolant in your oil or do you have oil in your coolant? >3. Professional Approaches include: > a...
• Re: Idle/mixture Screw
  Historical mailing list - Doktor Tim
  Mon, 6 Oct 2003 12:14:30 -0700
  ...Cylinder compression balance out of spec. Fuel pressure out of spec. Temp sensor out of spec. Pressure regulator out of spec. AFM out of...
• Re: opinions please
  Historical mailing list - Doktor Tim
  Sun, 28 Nov 1999 11:50:21 -0800
  ...Just have the motor compression and fuel pump pressures tested before purchase to allow or not for remaining value there. If you have a...
• Re: Coolant coming out...
  Historical mailing list - Amanda Powell
  Fri, 4 Aug 2000 16:37:40 GMT
  ...The fact that it pushes it out so much later tells me the system is holding pressure pretty well. It is just a matter...
• Re: Fix Those Exhaust Leaks!
  Historical mailing list - TieDye
  Tue, 28 Nov 2000 20:18:13 -0500
  ...When I had asked why he explained that the back pressure from the muffler... would somehow help the engine in completing it's compression...
• Re: Am I crazy?
  Historical mailing list - Jay L Snyder
  Thu, 4 Apr 2002 08:02:59 -0500
  Get a compression test done and have the mechanic test the oil pressure. Good sign of overall condition. I sold my '86 with about...
• Re: Vanagon? Really? Gasoline vs. Diesel-again.
  Historical mailing list - Tom Hargrave
  Sun, 22 Jan 2012 15:31:32 -0600
  ...Due to high compression ratios and the excess air, >>> diesels make a lot of NOx. An awful lot. This is a primary >>> contributor to...
• Re: Friday: New VW Engine--it's Miller (cycle) time
  Historical mailing list - Alistair Bel
  Fri, 29 Apr 2016 09:01:19 -0700
  ...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: lifters for new engine? - and increased stroke
  Historical mailing list - John Rodgers
  Sun, 23 Mar 2003 19:59:11 -0600
  I always understood that the rule of thumb was (1) increase power by increasing cylinder pressure by increasing the stroke, which would allow you...
• Re: oil leak on 1984 1.9
  Historical mailing list - Scott Daniel - Turbovans
  Mon, 18 Oct 2010 17:37:46 -0700
  ...I mentioned I thought I had read on here something about high case pressure. What is the test for that? Compression? This is a...
• Re: Power & MPG Summer/Winter Rod bolts
  Historical mailing list - Dennis Haynes
  Sat, 14 Nov 2015 09:10:27 -0500
  All critical high strength fasteners work by being stretched or what they are clamping going into compression. The different designs determine how much to...
• 89 backfires, sputters when warm. MYSTERY problem!!
  Historical mailing list - vanagon
  Fri, 13 Oct 2006 12:02:06 -0400
  ...IT IS NOT A mechanical issue because compression and all are fine. All electrical test as per official service manual check out fine, computer...
• Re: Think I have sprung a leak in my powersteering lines! Need some guidance please.
  Historical mailing list - Robert Stewart
  Wed, 28 Oct 2009 20:56:17 -0400
  ...High Pressure - 3/8" ID Pressure High Pressure 4000 PSI Minimum Low Pressure 400 PSI Hose Type: Braided Hydraulic Line ( Optional Stainless Steel ) 1...
• I'm stumped! (misfire)
  Historical mailing list - Eric Schmedlin
  Sat, 23 May 1998 05:23:33 -0700
  ...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: vanagon fuel tank/problems it can cause?
  Historical mailing list - Woodcock, Frank
  Thu, 9 Jul 1998 08:54:28 +0100
  ...The current owner says that both of these problems >>are related to a loss of fuel pressure due to the gas tank needing to...
• Re: The ole head dilema
  Historical mailing list - Dennis Haynes
  Sat, 3 Mar 2007 16:18:02 +0000
  ...Compression, leak down, and oil pressure. If the engine is healthy and especially if only one side is leaking, I would go for option...
• Re: Bad Fuel Pump?
  Historical mailing list - Mark Drillock
  Wed, 12 Mar 2008 14:03:39 -0800
  ...It is best to measure the delivery rate will also watching the fuel pressure with a fuel pressure gauge, $10-20. The pump needs...
• Re: Start up,back fire?
  Historical mailing list - Dave Mcneely
  Tue, 19 May 2015 13:47:44 -0500
  ...The compression washer on the plug > > was not compressed and was on an angle with dirt between the washer and > > plug. Could this have...
• Re: Water Pump-High mileage engines!
  Historical mailing list - Dennis Haynes
  Thu, 22 Nov 2012 09:57:12 -0500
  ...While it is down a bit on power due to I think worn cam lobes, compression, leak down, and oil pressure is still good...
• Re: 88 GL - Coolant Loss
  Historical mailing list - SDF ( Scott Daniel Foss )
  Sun, 23 Mar 2014 00:30:14 -0700
  I would check the compression of the engine..or even better..do a leak down test. if that was ok..I'd pressure test...
• Re: 2.2L EuroCars Engine vs 2.1l Boston Engine
  Historical mailing list - Vanagon man
  Fri, 23 Aug 2002 13:19:23 -0400
  ...A rebuilder can sell you a motor with great compression, oil pressure, etc., and then the new owner of the motor can put on...
• Re: head compression leak again!#$%!
  Historical mailing list - kenneth d lewis
  Thu, 10 Feb 2000 16:33:46 EST
  ...back pressure. My stupidity in driving the van without >hacksawing >off the CAT or the prior overheating resulted in a blown compression >seal >that...
• Re: 81 Westfaila
  Historical mailing list - Dennis Haynes
  Mon, 7 Dec 2015 21:29:42 -0500
  ...Yes, compression and leak down, you really need both, oil pressure, cylinder balance, (performance). Dennis From: Christian Smith [mailto:christian.smith.84@gmail.com...
• Re: Vanagon fuel requirement
  Historical mailing list - Bj�rn
  Tue, 15 Sep 1998 10:56:56 -0700
  ...The higher the compression in gasoline engines, the more pronounced it can be. That's why higher octane fuels have inhibitors to actually slow...
• Re: Coolant coming out...
  Historical mailing list - Amanda Powell
  Fri, 4 Aug 2000 16:40:11 GMT
  ...The fact that it pushes it out so much later tells me the system is holding pressure pretty well. It is just a matter...
• Re: oil in coolant
  Historical mailing list - Ryan Cresawn
  Thu, 15 Apr 2021 15:15:35 -0700
  ...I checked the compression following the instructions in the Bentley service manual and the results are disappointing. Cylinder #1 = 141 PSI Cylinder #2 = 126...
• Vanagon Winter Storage and or annual inspection
  Historical mailing list - Jack R.
  Fri, 8 Oct 2010 14:16:37 -0400
  ...1____________ 2____________ 3____________ 4____________ ___ _____ Plug condition? (OK? Burnt? Oily? Sooty?) ___ _____ 1____________ 2____________ 3____________ 4____________ ___ _____ Oil Pressure: idle_______ 4000 RPM_______ ___ _____ P/S, Alt, & A/C...