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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 11+: 60 results shown for Intake Valve.

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

  • Re: Soliciting VW Engine Recommendations
    Historical mailing list - SDF ( Scott Daniel Foss )
    Thu, 23 Jan 2014 13:01:50 -0800
    ...The death kneel for these systems was emissions requirements and the issues with intake valve deposits and valve guide wear. The major disadvantages was...
  • Re: Contents of Head Gasket Kit 025 198 102A 025198102A (repost)
    Historical mailing list - Old Volks Home
    Tue, 29 Mar 2005 14:08:48 -0800
    ...N 025 198 102A, mfg by Elring > 2) Valve Cover Gasket, may be attached to valve cover with most any gasket goop. Same as...
  • Re: Rough running, black smoke, running rich, no idle
    Historical mailing list - Robert Stevens
    Tue, 4 Feb 2014 15:21:44 -0700
    ...It does not work/open until you accelerate, then the valve opens and recirculates exhaust into the intake. When the valve stops working (mine...
  • Re: Leaky vent on Propane Shutoff valve?
    Historical mailing list - David Beierl
    Wed, 27 Aug 2008 10:27:40 -0400
    ...You very likely have an air leak somewhere at the upper end of the flue/intake system, either bad O-rings at the tube...
  • Re: EGR on '81 Vanagon Westie
    Historical mailing list - Matthew Bulley
    Wed, 10 Sep 1997 07:08:13 -0400
    ...1) should I just leave the set up as it is for now, with the egr intake open?(it has been running this way...
  • Re: oil pressure relief valve leak?
    Historical mailing list - Marla Stelk
    Tue, 23 Sep 2003 10:05:00 -0400
    ...I replaced my oil pressure relief valve and it didn't do a thing for the leak. I also replaced my oil cooler ring...
  • Fw: Engine dies update
    Historical mailing list - Stephen M Canapp
    Tue, 6 Mar 2001 18:01:35 -0500
    ...Seems to run better, but I think the idle stabilizing valve fix "might" of been my main culprit. Discovery #2, Air intake hose collapsed...
  • Re: WBX Mods Graph
    Historical mailing list - Todd Francis
    Sun, 3 Jun 2001 12:31:52 -0700
    ...The length of the total intake also affects air speed. Ratio rockers do not decrease low end power but increase it. The valves are...
  • Head/Engine rebuild lots of questions
    Historical mailing list - Bob O Shaughnessy
    Sat, 25 May 2002 23:01:13 -0400
    ...The engine was mostly assembled, with a box in the passenger compartment holding the injectors, timing belt cover, valve cover and intake air box...
  • Re: Van Stalls Easily when totally cold.
    Historical mailing list - pickle vanagon
    Sat, 20 Sep 2008 00:21:17 -0400
    ...that was supplied by the aux air > valve. > Always remember to consider and look for intake and air leaks in general. > They can really...
  • location of vacuum hose????
    Historical mailing list - jesse lee reynolds
    Sun, 15 May 1994 21:57:27 -0500 (EST)
    ...EGR valve on my 76 van. I looked, but I couldn't find where the other end goes! Somewher near the intake air manifold...
  • Re: spark plug orientation affects performance?
    Historical mailing list - David Schwarze
    Wed, 3 Apr 1996 10:36:29 -0800 (PST)
    Sami Dakhlia writes: > > I read somewhere that it may be advantageous to install spark plugs so > that their open end faces the intake valve...
  • high idle.
    Historical mailing list - mdc
    Mon, 28 Apr 2003 21:04:07 -0700
    ...changed the idle control valve- can't be that. haven't checked the idle control sensor- could be that. tuned up with all new...
  • Re: Cold Start Chug and Warm Stumbling
    Historical mailing list - Jay L Snyder
    Fri, 23 Feb 2001 09:28:17 -0500
    ...or the ISU maybe the Warm Air Valve (squeeze the fat braided hose going into the intake boot with a pair of plyers when...
  • Re: Ceramic Coated Heads
    Historical mailing list - Robert Lilley
    Fri, 6 Jul 2001 10:54:50 EDT
    ...This creates a greater vacuum that pulls harder on the intake charge (when both valves are open) so more fuel mixture packs the cylinder...
  • Re: WAS: Starter Motor... Failure: NOW: 50 Circuit Weirdness. ECU Related?
    Historical mailing list - Scott Daniel - Turbovans
    Sun, 16 Dec 2012 13:31:16 -0800
    ...http://www.ipdusa.com/uploads/images_products_slideshow/fullsize_6493.jpg > > >> 'ICU' make me think of what I call the Idle Control Valve .. sometimes...
  • Re: valve cover and vacuum question -1.8 Gas conversion
    Historical mailing list - EMZ
    Sun, 8 Jun 2003 21:47:17 -0400
    ...device that plugs into the valve cover and then has a hose that goes directly to the intake. Check one of these out, in...
  • Re: engine noises
    Historical mailing list - Tom Young
    Mon, 23 Jun 2003 18:58:34 -0700
    ...The > exhaust valve on cylinder #1 (the valve most forward on the engine on the > passenger side) seems messed up. I can't get...
  • Re: WBX Mods Graph
    Historical mailing list - Robert Lilley
    Sun, 3 Jun 2001 12:38:31 EDT
    ...through the intake ports at lower speeds and improve the bottom end because the valves are opening faster than stock valves and accelerate the...
  • Re: 1.9 > 2.1 cooling kit?
    Historical mailing list - Jim Arnott
    Thu, 2 Sep 2010 20:28:47 -0700
    ...It bleeds between the two large hoses and thence to the heater circuit at the pipe that crosses the intake plenum. The valve opens...
  • diesel-gas conversion problems solved!
    Historical mailing list - Matt Ratto
    Wed, 29 Jan 2003 17:41:42 -0800
    ...valve cover) and it fired right up. It sounds a little rough, overheats, and there's a vacuum leak from somewhere (possibly the intake...
  • Re: Engine braking with a turbo...
    Historical mailing list - Scott Daniel - Shazam
    Mon, 9 Jun 2008 22:17:44 -0700
    Speaking of a butterfly valve, or 'throttle' in the intake.......... I know where there is a perfectly sized on right on a diesel engine...
  • Just one head?
    Historical mailing list - John Houser
    Sun, 21 Oct 2001 17:37:45 EDT
    ...I took the passenger side cylinder head off and found a crack that ran from the exhaust valve seat to the intake valve seat...
  • Re: Cylinder Head differences
    Historical mailing list - Bob Donalds
    Fri, 27 Apr 2007 22:17:00 -0400
    1.9 heads have smaller cumbustion chamber and a step next to the intake valves the 2.1 does not Bob ----- Original Message ----- From...
  • Re: 009 and carb leaks
    Historical mailing list - Dave Kautz
    Thu, 1 Dec 94 14:10:59 PST
    ...check valve (and it was good)that would have held vacuum in the booster despite the lack of it in the intake manifold. I...
  • Re: Start up, back fire?
    Historical mailing list - Dennis Haynes
    Sat, 16 May 2015 09:29:18 -0400
    ...of a valve lot sealing to allow ignition to get into the exhaust or intake. Yes backfires can occur in the intake track. That...
  • idle and black tower
    Historical mailing list - Daniel L. Katz
    Wed, 26 Apr 2006 00:31:08 -0400
    ...a valve routing the blowby down the usual route to the intake off-idle, or a vent to the atmosphere at idle, would be...
  • Re: idle and black tower
    Historical mailing list - Dennis Haynes
    Wed, 26 Apr 2006 20:27:53 -0400
    ...a valve routing the blowby down the usual route to the intake off-idle, or a vent to the atmosphere at idle, would be...
  • GEX
    Historical mailing list - David Carment
    Wed, 31 Jul 1996 16:29:11 -0400
    ...The no.3 intake valve seat had been pushed *into* the cylinder head by at least 5 mils or more. This is different from...
  • Re: Engine rebuild break-in
    Historical mailing list - Dennis Haynes
    Wed, 21 Aug 2002 21:45:05 -0400
    ...Another possibility is that the intakes valves or guides are worn-oversized allowing oil to get sucked down the guide. I'll also bet...
  • Re: 89 2.1 compression questions
    Historical mailing list - Jonathan Farrugia
    Tue, 16 Mar 2004 05:15:04 -0500
    ...if it is the valves you should hear or feel air coming out of the exhaust or intake manifold/throttle body. if its the...
  • Re: Hydraulic lifters
    Historical mailing list - Rick Cooper
    Mon, 9 Sep 2024 09:38:44 -0700
    ...intake valves, as soon as I start trying to turn the adjustment screws the 1.5 or 2 turns, I notice that the valve...
  • Re: RoadHaus - Escaping Air Sound?
    Historical mailing list - John Rodgers
    Mon, 16 Feb 2004 20:49:34 -0600
    ...of the stuff went into the engine, through the intake >manifold, past the intake >valves into the engine, and in a few moments the...
  • Runaway Dieselbox!
    Historical mailing list - Sean Lynch
    Thu, 7 Sep 2000 12:29:26 EDT
    ...oil down the breather tube that runs from the valve cover to the intake manifold. I suspect it started siphoning oil, and running on...
  • Re: Why no bolt-on HP upgrades to the 2.1 WBX?
    Historical mailing list - pickle vanagon
    Thu, 24 May 2012 15:13:17 -0400
    ...all have upgrades -- intake flow enhancement, > exhaust headers, sparkin' plugs, reworked heads, super charger kits, > lightweight rods/pistons, larger valves, and (oh my!) nitrous? > >
  • difficult starting, uneven idle, stalling
    Historical mailing list - Loretta Abbott-Kennon
    Tue, 4 Jun 2002 19:22:19 EDT
    ...Cleaned idle stabilizer valve. e. Cleaned and inspected air intake hoses for cracks. f. My AFM and idle control unit were replaced with new...
  • 1.9 engine breather/coolant hoses and exhaust gaskets
    Historical mailing list - Mike Bucchino
    Tue, 14 Mar 2006 19:39:35 -0500
    ...breather tower to the intake. (large diameter breather - reinforced?) 2.) the bypass hoses to/ from the idle air control valve. (standard breather hose?) 3...
  • Re: Main Engine Bearings
    Historical mailing list - Robert Donalds
    Mon, 6 May 2002 08:30:42 -0400
    ...cat and early 1.9 intake system So can you go faster than 70 with a big valve engine yes I do in 84...
  • PARTS FOR SALE
    Historical mailing list - mathew Bennett
    Mon, 21 Jul 2003 20:01:01 -0400
    ...air intake boot from air filter to intake manifold (great shape)-$15 *Power steering pump bracket (silver metal) great shape-$5 *Valve covers (good...
  • Re: Yucatan trip report (not mine)
    Historical mailing list - Michael Sullivan
    Sun, 1 Mar 2009 17:15:57 -0600
    ...washer pump wires to the cold > start valve (an electric fuel spray valve in the intake plenum) and > supplied > pulses of gas to the...
  • Subaru transplant versus Ratio rockers and wasserboxer upgrades
    Historical mailing list - developtrust
    Mon, 25 Feb 2002 15:46:15 -0800
    ...I have spoken of > this in the past as the reason not to use the ratio rockers to prevent > intake valve guide wear. As...
  • Re: Oil in air intake SOLVED!!!
    Historical mailing list - JLDilworth
    Mon, 8 Dec 1997 01:49:36 EST
    ...said oil was getting into the intake air distributor. This problem cost the previous owner a valve and ring job on one side to...
  • Re: blow-by to the limit ... what limits?
    Historical mailing list - Stuart Hutton
    Wed, 30 Nov 1994 12:04:54 -0700 (MST)
    > 2) The PCV system will blow oil into your air filter, which will > then get sucked into the air intake system for combustion. It...
  • warm idle mystery on my `71
    Historical mailing list
    Thu, 15 Sep 94 12:08:02 PDT
    ...I checked the intake manifold and associated vacuum lines coming off of the manifold- no leaks. I tried a second (used) carb, and there...
  • Re: seeping from core flange
    Historical mailing list - harald.nancy
    Sat, 11 Oct 1997 11:41:17 -0700
    ...is leaking out of the > flange that connects the core intake to the valve assembly. It is fastened > with 2 hexhead screws. Should I...
  • Re: Idle Control Issues
    Historical mailing list - Craig Forney
    Sat, 20 Jul 2013 22:55:32 -0700
    ...The additional air to the intake plenum is regulated by the Idle Air Control (IAC) Valve (cylindrical object on top of the engine). It...
  • Re: Manifold vacuum specs?-Leak down testing
    Historical mailing list - Geza Polony
    Sun, 31 Dec 2006 12:10:26 -0500
    ...If your hear leakage through the intake, you have an intake that is not seating and if through the exhaust, bad exhaust valve. > >Poor...
  • Re: Rich on side, lean the other?
    Historical mailing list - Dennis Haynes
    Sun, 16 Sep 2007 09:15:37 -0400
    ...Is it really fuel or possibly oil? One often over looked source of vacuum leaks is the valve guides. An engine imbalance due to...
  • Re: Idle control valve and very cold weather?
    Historical mailing list - Don Hanson
    Tue, 8 Dec 2009 21:35:22 -0800
    I seem to recall a plug of sorts into the valve...Maybe..I think one of the diagnostics in Bently is to "listen for...
  • Re: Golf motor with Diesel Mounts intake manifold questions
    Historical mailing list - Frank Grunthaner
    Fri, 1 Mar 2002 03:54:38 EST
    ...The fuel injectors are almost perfectly oriented to the intake valve. 2. The intake manifold for the '87 VW Golf CIS car extends 7...
  • Re: discolored injector
    Historical mailing list - Benny boy
    Mon, 26 Oct 2009 08:58:11 -0400
    ...Intake valves not seating properly can also cause that kind of problem, hot gas make their way back up on deceleration / cold start... I...
  • Was: Oil.Where's it go? Now: Sheesh! It goes into the coolant, as of this evening.....
    Historical mailing list - Don Hanson
    Wed, 18 Oct 2017 20:37:49 -0700
    ...the outlet in the valve cover where the PCV valve usually sits.... I plugged up the hole into the intake and went off for...
  • Re: Tips on passing emissions
    Historical mailing list - Scott Daniel - Turbovans
    Fri, 29 Jun 2012 18:59:03 -0700
    I don't think I've seen intake valve seals on any waterboxer head I ever took apart. There are a lot of vanagon...
  • Re: Performance Wasserboxer: Fact or Fiction
    Historical mailing list - Mark B. Magee
    Thu, 20 Jul 2000 18:44:33 -0500
    ...eliminated valve guide wear > Add Cromoly cut to fit push rods > Add Cromoly valve spring retainers > Have 3 angle cut on valve seats and...
  • Re: How long does it take your Vanagon to warm up
    Historical mailing list - Warren Lail
    Sun, 15 May 2005 08:25:20 -0500
    ...Is it likely to have carbon build-up on the intake valves so soon? I am reluctant to introduce additives of any kind to...
  • Re: vanagon Digest - 26 Apr 2007 to 27 Apr 2007 - Special issue (#2007-436)
    Historical mailing list - Keith Hughes
    Fri, 27 Apr 2007 10:32:12 -0700
    ...intake valve is too tight, it won't completely close allowing leaking into the plenum during the compression stroke. If an exhaust valve is...
  • Van Storage, mothball, mothballing, long-term storage
    Historical mailing list - Bulley
    Tue, 1 Aug 2000 22:14:41 -0400
    ...Slacken ALL of the valve adjusting screws or remove the rocker arms to close the valves. 6. Tape securely across the ventilation intake (behind...
  • Re: Mechanical tests for my spare air cooled engine?
    Historical mailing list - Scott Daniel - Shazam
    Wed, 29 Aug 2007 23:32:16 -0700
    ...I've tested for the valves not sealing well by filling the intake & exhaust ports ( relative valve fully closed ) with gasoline , or paint thinner...
  • Re: Arduino and Vanagons-The fuel injection handbook.
    Historical mailing list - Dennis Haynes
    Sat, 16 Nov 2013 22:15:09 -0500
    ...while the other injector pulses happen in the intake runners at various 'not intake valve opening' times. That's a more elaborate way of...
  • Re: Rich on side, lean the other?
    Historical mailing list - Michael Elliott
    Sun, 16 Sep 2007 07:15:29 -0700
    ...So when the intake valve is closed, injected fuel sorta just pools up or something? When the valve opens some gets sucked in and...