Date: Tue, 28 Jul 2009 17:06:18 -0700
Reply-To: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Subject: Re: [WetWesties] hot-not-start
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I'd put a fuel pressure gauge on it, mount it where I can see it at all
times...
and leave it on for a while,
and see if I learned anything from doing that.
I'm thinking along the lines of fuel vaporization .......
'vapor lock' it's commonly called.......the fuel gets hot, boils, or becomes
other than a liquid that the fuel system can pump.
I had to very distinct, very clear cases of it in the last few years, on hot
days.
Quite certain it was vapor lock.
so I'm wondering about your fuel pressure .....
and the fuel itself.
you're not using Arco are you ? - don't.
and don't use premium either - good ole regular only.
I also wonder if your fuel system is on the ragged edge.........restricted
fuel filter, old pump, tired fuel tank, etc.
and it only takes a bit to push it over the edge.
fuel pressure regulator .......
I rarely see a bad one of those ........but how it's working is important to
know.
I also see a lot of vanagons , especially 1.9's that 'run' .......but they
aren't running anywhere near like they really should.
So often, it's not a 'perfect machine' and 'this one thing' is causing it to
misbehave, it's a number of 'half things.'
often it's 5 not right things, and 3 half-not right things, that all add up.
I'm testing on a 84 right now about this vary sort of thing .....
starting with testing fuel pressure.
I hope you get yours figured out.
whenever I am working on loss of power.........I don't feel good about an
engine, unless I see a fuel pressure gauge reading what it should. I often
leave that gauge on during the whole troubleshooting and sorting through
process. And I've found many a clogged fuel filter, weak fuel pump, and
restricted fuel tank on vanagons.
Scott
www.turbovans.com
----- Original Message -----
From: "Don Spence" <dkspence@TELUS.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Monday, July 27, 2009 12:07 PM
Subject: [WetWesties] hot-not-start
>I have the same issue with my 83.5 wbx westy. When the ambient temp
> rises above 26 celcius (80 Fahrenheit) The engine slowly heats up and
> runs fine until I hit a stop light when it will stall at idle. It
> will not restart (cranks fine) until the engine has "rested" for at
> least 10 minutes. It then starts fine and runs until it reaches temp
> and is allowed to idle again when the cycle repeats. I know these
> things run well in CA, AZ and Texas where temps are often above 80
> F. Any one with any wisdom to share as to what could cause this??
>>
>
>
> Many thanks
> Don
