Date: Thu, 5 Dec 2002 17:53:06 +0000
Reply-To: Chris DeLong <green536@HOTMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Chris DeLong <green536@HOTMAIL.COM>
Subject: Re: gas, spark, still no love
Content-Type: text/plain; format=flowed
Ok well it sounds like you have a recipe for disaster there if you are
noticing fuel coming out of the exhaust manifold. It also sounds like your
sprk plugs are probably really fouled. Remove the plugs disconnect ignition
system and crank the engine over. You need to get rid of all that excess
fuel in the combustion chambers. After you have done that clean all the gas
off of the engine. Then put a new set of plugs in there and attempt to start
it with the fuel pump disconnected. this will burn any residual fuel left
over from the cranking. after it is all done burning excess fuel then hook
the pump up. if it doesnt fire right up then you will have to readjust your
fuel mixture. I dont know how much you cranked that allen but anything more
than one turn and you have put it way out of adjustment. if thats the case
then you will have to crank the allen counterclockwise in order to lean the
mixture out until you get a little action. HTH
Chris DeLong
ICQ#45030867
Seattle, WA USA
'80 16V 'Rocco ragtop
'91 GLi 2.0 16V
'77 Rabbit 16V
'80 'Vert (parting out!)
'61 17 Window type II
'91 Vanagon
'78 Rabbit
'84 Jetta
>From: Andrew <Andrew@VWMAIL.NET>
>Reply-To: Andrew <Andrew@VWMAIL.NET>
>To: vanagon@GERRY.VANAGON.COM
>Subject: Re: gas, spark, still no love
>Date: Thu, 5 Dec 2002 04:20:17 -0800
>
>Good compression is just as important as spark, fuel, and air, thats the
>next thing that I'd check. Also, it would be a good idea to check the
>timming belt, make sure that all the marks line up. A timing light would
>show that the distributor is in time, but not the camshaft.
>
>
>Andrew
>1984 Westy "Speed Bump"
>1996 VW Jetta Trek "Little Beep" (the wife's car)
>
>
>--- Matt Ratto <mratto@UCSD.EDU> wrote:
> >Well, here I am again. Diesel - gas conversion. Gas motor is CIS (not
>CIS-E)
> >from 1986 Golf (engine code GX). I turn the car over and every now and
> >again get a detonation - sometimes even a series, but can't get it
>running.
> >I don't know what else to try at this point. Here's what I've tested:
> >
> >Spark - good jolt from the primary coil, tested electronic ignition
>module
> >(faulty) and replaced it. New plugs, wires, good cap and rotor. Made sure
>of
> >firing order, and used timing light to position the distributor so that
> >timing is close to correct. Put the timing light also on other spark plug
> >wires to make sure they were firing as well. (I was worried about the
>Hall
> >sender.) So far so good.
> >
> >Gas - Replaced leaky run between intake manifold and CIS fuel
>distributor,
> >plugged holes in intake, put vacuum lines on. Pulled injector #1 and #2
>(but
> >not 3 and 4) and verified fuel flow on cranking. Also tested cold-start
>and
> >thermo-time switch - everything works. I pulled the idle mixture plug out
> >and played a little with the allen screw adjustment but with little
>change.
> >I'm pretty sure I'm getting gas into the cylinders - some of it is
>leaking
> >out of the exhaust manifold (which is something that I am worried about -
>I
> >thought that was pretty well torqued down.)
> >
> >Questions I have:
> >
> >First, how can I test that the mixture is right? Also, is it possible for
> >the injectors to be firing and the system pressure be too low or possibly
> >too high? I can't test that without some more money spent on test
>equipment.
> >
> >Second, I don't have the electronic component ( I think this is the KA
> >Jetronic ECU) hooked up to the fuel distributor. I figured that without
>an
> >oxygen sensor it won't make much difference for now. (as soon as I get my
> >new exhaust this is all going in.) I'm also not sure how this unit
>effects
> >the fuel distributor. I've been told that the engine will run without all
>of
> >this - although it will probably need to be adjusted via the mixture
>screw
> >because they tend to run lean without the ECU.
> >
> >Finally, can anyone think of anything else to test?
> >
> >thanks for any help,
> >
> >Matt
> >
> >-------------------------------------
> >Matt Ratto
> >Ph.D. Candidate
> >University of California, San Diego
> >mratto@ucsd.edu
> >http://communication.ucsd.edu/mratto
> >--------------------------------------
>
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