Date: Sun, 25 Aug 2013 20:53:29 -0500
Reply-To: Tom Hargrave <thargrav@HIWAAY.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Tom Hargrave <thargrav@HIWAAY.NET>
Subject: Re: How bad is it to have dual carbs instaed if the FI on an 84
In-Reply-To: <CAGbP_PiWZHzrS=0Jn=BCJyfSsSmt+RzpK384+abcFN9dAWYBVQ@mail.gmail.com>
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Gasoline wash down is real - it's caused by gasoline condensing on cold
cylinder walls during cold start-up. It can be a real problem on carbureted
engines with chokes because the gas droplets from a choked engine can be
huge. A FI system properly atomizes gas even during a cold start.
Gasoline wash down killed carbureted engines that were started, driven less
than 5 miles then shut down & did not have much effect on engines with
properly set chokes that were driven long enough to warm up. It would be so
bad in some of these short run cars that you could smell gas on the dip
stick.
American cars of the 70's did not appear to go 100,000 miles because the
70's was the era of widespread odometer roll-backs. A car would come into
the dealership and the shop would set the odometer to the condition of the
interior after clean-up. Many American cars were rolled back 30K, 40K or
even 50K miles and some were rolled back more than once. The best trade-in's
were salesman's cars. They would trade in cheap with 100,000 or more miles
with little interior wear & would appear back on the lot or sell through
auction with 30K - 40K on the odometer.
Thanks, Tom Hargrave
www.kegkits.com
www.stir-plate.com
www.towercooler.com
www.grow-sun.com
www.raspberryproject.com
-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM] On Behalf Of
David
Sent: Sunday, August 25, 2013 7:51 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: How bad is it to have dual carbs instaed if the FI on an 84
I've watched this thread for the past couple days and seen some great
responses.
I did, however, want to remind us of a discussion that I thought was brought
up by Dennis several years back about the wear difference on an engine with
carbs vs fuel injection.
>From what I remember, it was seen as a better thing for FI based on the
idea that the full WASH of fuel on the cylinder walls on startup wasn't
washing away the protective coating of oil on the cylinders.
I'm remembering my old carbureted vehicles and how the engines seemed to be
worn out with even less than 100k miles...burning through lots of
oil...having to use thicker oils, smoke out the tailpipe etc. Although these
were American cars bought in the 70's (a dark time for the US auto market).
Maybe the archives would pull up that discussion...
Dave
85 GL Baby Bus (that when head gaskets were done @ 145k miles the decision
was made that the wear didn't necessitate new rings or rebuild...)
On Wed, Aug 21, 2013 at 12:48 AM, A J <flavanagon@gmail.com> wrote:
> Hello all,
> I am looking at a van it is an 83 or maybe an 84 but it is water
> cooled,and it seems to have been converted to dual carbs from the fuel
> injection. Im not sure if such was available factory so I am wondering
> if I am going to be in for a bunch of hassles? It doesnt looked
> butchered or anything but it is weird to open the hatch and look at
> dual carbs with little individual air filters and a connecting rod
> connected from the accelerator linkage to a long pivit rod that
> connects both carbs. Im not positive but it kind of looks like a dual
> carb setup that would be on an aircooled.
> With just a quick look around it seems like some of the wiring and "boxes"
> that are on my 87 arent on this at all. Was told it did run fine but
> has been sitting. Am I asking for a whole big bag of troubles if I do
> go on and buy this van?
> I personally wouldnt have a concern about the carbs other than would
> they be more of a hassle and is there a power loss/increase. Can
> anyone enlighten me with the pros and cons with this setup? Im
> thinking without the electronics all over the engine it may be a more
> reliable,less costly motor to care for but Im just guessing. Any
input/opinions appreciated.
>
> Thanks,
>
> A J
>
