Date: Fri, 27 May 2011 11:26:41 -0700
Reply-To: neil n <musomuso@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: neil n <musomuso@GMAIL.COM>
Subject: Re: Intermittent poor performance at light throttle ('84 1.9L
automatic transmission)
In-Reply-To: <D27ADEF8-45C7-4B90-9505-24C0A495311F@shaw.ca>
Content-Type: text/plain; charset=ISO-8859-1
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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