

| Subject: | Re: Intermittent poor performance at light throttle ('84 1.9L automatic transmission) |
| From: | neil n |
| Date: | Fri, 27 May 2011 11:26:41 -0700 |
Hey Alistair. Absolutely! I understand the smoke test is the way to go (and safer?) If it's a British car, you could use this Lucas Replacement Smoke kit: image: http://www3.telus.net/bc_triumph_registry/images/Smokekit2.jpg <snicker> Neil. On Fri, May 27, 2011 at 10:35 AM, Alistair Bell <albell@shaw.ca> wrote: > there was a recent samba thread where a chap made a smoke box from a paint > can, two connections on can, one to a compressor, the other a tube/hose to a > plug he made to fit afm input. He made smoke with an old rag lit and > smouldering in can, and pushed the smoke in with light air pressure. He > looked for smoke coming out of air intake system. > > alistair > > > On 27-May-11, at 10:08 AM, neil n wrote: > >> Assuming this issue did not happen after recent work you did..... >> >> My first thought is "check for a vacuum leak". >> >> I've read that spraying starter fluid or even WD40 (WD40 safer to >> use?) on suspect vacuum hoses, intake boot can be revealing. Idle is >> affected if the spray is sucked into the intake. >> >> I was curious about the WD40 use. One comment online suggested that >> using it may harm the O2 sensor. Not sure if poster meant that "too >> much" or "any" amount of WD40 would do this. >> >> There should be info in the archives on this vacuum leak check method. >> >> Neil. >> >> On Fri, May 27, 2011 at 5:51 AM, John Lauterbach >> <jhlauterbach@bellsouth.net> wrote: >>> >>> My '84 Vanagon is exhibiting some strange symptoms. �Engine is Boston >>> Bob 1.9L installed 9/2003 and everything that I could buy new to go with >>> it I did. �Also recently changed rotor and distributor cap and made sure >>> there was no corrosion at connection between spark plugs and plug wires. >>> Timing is right on and idle is around 900 rpm. With van warm and going >>> up slight grade with automatic transmission in "high", engine will >>> sometimes run roughly. �I never had this problem before. �Is there a >>> solution other than throwing dollars at the problem with new plugs, >>> wires, O2 sensor, etc.? >>> >>> John >>> >> >> >> >> -- >> Neil Nicholson '81 VanaJetta 2.0 "Jaco" >> >> http://tubaneil.googlepages.com/ >> >> >> http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines > > -- Neil Nicholson '81 VanaJetta 2.0 "Jaco" http://tubaneil.googlepages.com/ http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines
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