Date: Tue, 15 Apr 2008 08:48:47 -0700
Reply-To: neil N <musomuso@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: neil N <musomuso@GMAIL.COM>
Subject: Re: Vanagon/Jetta timing issue. Use RPM sensor hole to find #1
TDC mark?
In-Reply-To: <71d9cdf90804150840r42fca227q9f9d97ae67bcf73d@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
Hey neat tip!
I actually have a brand new gun. I haven't used it yet (!). Maybe it
has that feature.
If you need extra muscle to move the heater ( I hope it doesn't need
replacing!), give me a ring. That way I can bring over your parts and
the bench seat.
Neil.
604 913 1689
On Tue, Apr 15, 2008 at 8:40 AM, Jake de Villiers
<crescentbeachguitar@gmail.com> wrote:
> If I wasn't backed up to the eyeballs I'd come over and turn the key for
> you.
>
> My timing light has an 'always on' setting that's pretty useful. Point it
> at the ceiling of the van and go crank - it flashes on the ceiling. :)
>
> I've got a customer coming at 10:00 am and my mom's water heater is leaking
> (!) but I'll try and give you a call.
>
>
> On Tue, Apr 15, 2008 at 8:30 AM, neil N <musomuso@gmail.com> wrote:
>
> > Hi Jake.
> >
> > One of the "to do" things was to get a remote starter.
> >
> > I'll check for spark.
> >
> > Thanks!
> >
> > Neil.
> >
> > On Mon, Apr 14, 2008 at 11:55 PM, Jake de Villiers
> >
> >
> >
> > <crescentbeachguitar@gmail.com> wrote:
> > > Do you have spark? Maybe the best thing your timing light can do for
> you
> > > is determine whether you have spark or not. If its not making a spark
> > > there's no point in chasing down whether the ignition or valve timing is
> > > right or not.
> > >
> > > Step back and check for spark.
> > >
> > > If that's good, pour some gas in the manifold and see if it kicks.
> > >
> > > If there's no spark, get back to us! :)
> > >
> > >
> > > On Mon, Apr 14, 2008 at 11:31 PM, neil N <musomuso@gmail.com> wrote:
> > >
> > > > Hey Jake.
> > > >
> > > > Yah that was one of the first things I did when checking for TDC.
> > > > Feeling for air coming out of spark plug hole. I also used a wood
> > > > dowel to fine tune. There is also a mark on the crank pulley that
> > > > lines up with a stationary mark on the timing belt cover. This
> > > > indicates TDC.
> > > >
> > > > Here's what I did to the engine prior to install:
> > > >
> > > > replaced timing belt, serp belt, water pump, switched to a non - AC/PS
> > > > setup in the process, (used a VR6 coolant pump pulley), rotor, cap,
> > > > plugs, some gaskets/o-rings etc.
> > > >
> > > > I removed the distributor to inspect it.
> > > >
> > > > As for the timing belt, I did make marks on the cam, but wasn't
> > > > certain about my markings (or possibly lack thereof) and had doubts
> > > > about timing, so did it by the book. I installed the distributor once
> > > > cam/crank were timed together, by lining up the rotor with the #1
> > > > mark, and installed it. When I rotate it by hand everything stays
> > > > lined up.
> > > >
> > > > I never saw the engine run.
> > > >
> > > > One thing I may still be confused about, is the intermediate shaft and
> > > > its' role in things. It drives the distributor, but AFAIK, if
> > > > distributor not installed, it doesn't need to be in any special
> > > > position in relation to the cam, crank and distributor.
> > > >
> > > > There are likely some other bugs keeping this thing from running, but
> > > > given the way it sounds when turning it over, it sure sounds like it's
> > > > timed incorrectly.
> > > >
> > > > I have heard that sound before! :)
> > > >
> > > > Thanks,
> > > >
> > > > Neil.
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > On Mon, Apr 14, 2008 at 11:10 PM, Jake de Villiers
> > > > <crescentbeachguitar@gmail.com> wrote:
> > > > > Just because the piston's at the top of its stroke doesn't mean its
> TDC.
> > > > > :)
> > > > >
> > > > > Pull the #1 plug and turn the motor over by hand with your thumb
> over
> > > the
> > > > > spark plug hole and you'll find TDC on the compression stroke. Fine
> > > tune
> > > > > with your stick if you prefer.
> > > > >
> > > > > Did you remove the distributor from the engine for some reason? If
> the
> > > > > motor was running fine before you swapped it over, the timing's
> close
> > > enough
> > > > > to get you started. Just clip your timing light on the #1 lead,
> point
> > > the
> > > > > light at the mark and crank away.
> > > > >
> > > > > Pour some gas down its little throat and crank again.
> > > > > Is there something you're not telling us?
> > > > >
> > > > >
> > > > > On Mon, Apr 14, 2008 at 10:00 PM, neil N <musomuso@gmail.com> wrote:
> > > > >
> > > > > > Thanks for the reply Mark.
> > > > > >
> > > > > > So ok......
> > > > > >
> > > > > > If I'm understanding this correctly, as long as #1 is at the top
> of
> > > > > > its' stroke, whether or not it is an beginning its' exhaust or
> > > > > > compression stroke, is determined by how I set the cam?
> > > > > >
> > > > > > FWIW, I'm treating this engine as if the cam, intermediate shaft,
> > > > > > crank and distributor are out of sync with each other.
> > > > > >
> > > > > > Currently it's timed so when #1 is at TDC, the cam is at its'
> correct
> > > > > > mark, and the distributor is at #1 mark. I confirmed TDC using
> wood
> > > > > > dowel in spark plug hole. Crank pulley mark lines up with mark on
> > > > > > plastic timing belt cover.
> > > > > >
> > > > > > But.......
> > > > > >
> > > > > > In Bentley it says that if the RPM sensor is faulty, the engine
> won't
> > > > > > start. I'm not assuming it's faulty, but my concern is that if
> > > > > > (ignoring cam now) I have #1 set to the "exhaust" stroke in
> relation
> > > > > > to the gap on the crank gear, that this may be fouling up the RPM
> > > > > > sensor, therefore keeping the engine from starting.
> > > > > >
> > > > > > Neil.
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > On Mon, Apr 14, 2008 at 8:59 PM, Mark Drillock
> > > <drillock@earthlink.net>
> > > > > wrote:
> > > > > > > You have a 4 stroke engine, also called a 4 cycle. (I don't mean
> 4
> > > cyl
> > > > > > > though yours is that too)
> > > > > > >
> > > > > > > With a 4 stroke engine it takes 2 complete revolutions of the
> crank
> > > to
> > > > > > > complete a full cycle. With a 4 cylinder 4 cycle that means the
> > > crank
> > > > > timing
> > > > > > > mark will line up for 2 different cylinders at TDC at the same
> time.
> > > One
> > > > > > > will be lined up in its compression stroke TDC and the other
> will at
> > > the
> > > > > > > same time be lined up for its exhaust stroke TDC.
> > > > > > >
> > > > > > > The firing order of the VW inline engine is 1-3-4-2. That means
> > > that
> > > > > cyls 1
> > > > > > > AND 4 will be at TDC at the SAME time, but at different phases
> of
> > > their
> > > > > > > valve timing. VW provides a cam timing indicator so the valve
> timing
> > > > > phase
> > > > > > > can be checked against cylinder #1 TDC. Once timing for #1 is
> > > correct
> > > > > the
> > > > > > > others must also be so.
> > > > > > >
> > > > > > > Mark
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > neil N wrote:
> > > > > > >
> > > > > > > > Hey everyone.
> > > > > > > >
> > > > > > > > Haven't got my Jetta ABA 2.0 engine started yet. Timing sounds
> > > wrong
> > > > > > > > even though I have timing marks "correct".
> > > > > > > >
> > > > > > > > When engine turned over, it sounds like this:
> > > > > > > >
> > > > > > > > "whir whir whir" (slight pause) "whir whir whir" etc. It
> sounds
> > > > > > > > labored with very distinct "whirs" if that makes sense.
> > > > > > > >
> > > > > > > > Starter is fine, as is battery.
> > > > > > > >
> > > > > > > > I need to confirm TDC of #1 cylinder, but obviously can't see
> the
> > > > > > > flywheel.
> > > > > > > >
> > > > > > > > Bentley shows a gear attached to crank, that RPM sensor
> "reads".
> > > There
> > > > > > > > is a factory gap on gear. (2 teeth missing). RPM sensor reads
> this
> > > gap
> > > > > > > > as TDC for #1 cylinder.
> > > > > > > >
> > > > > > > > With sensor removed, and gap on gear lined up with RPM sensor
> hole
> > > in
> > > > > > > > block, crank pulley mark is at 9:00 and distributor points
> close
> > > to
> > > > > > > > #4. This somewhat confirms my suspicions. But i"m not certain.
> > > > > > > >
> > > > > > > > Anyone know if I can use this gap on the gear as reference for
> #1
> > > TDC?
> > > > > > > >
> > > > > > > > This is an interference engine AFAIK, so I don't want to screw
> > > with
> > > > > > > > timing any more than I have! --- :^)
> > > > > > > >
> > > > > > > > Thanks,
> > > > > > > >
> > > > > > > > Neil.
> > > >
> > >
> > >
> > >
> > >
> > > --
> > > Jake
> > > 1984 Vanagon GL
> > > 1986 Westy Weekender "Dixie"
> > > Crescent Beach, BC
> > > www.crescentbeachguitar.com
> > > http://subyjake.googlepages.com/mydixiedarlin%27
> >
> >
> >
> > --
> >
> >
> >
> > Neil Nicholson. 1981 Air Cooled Westfalia - "Jaco"
> >
> > http://web.mac.com/tubaneil
> > http://tubaneil.googlepages.com/
> >
>
>
>
> --
>
> Jake
> 1984 Vanagon GL
> 1986 Westy Weekender "Dixie"
> Crescent Beach, BC
> www.crescentbeachguitar.com
> http://subyjake.googlepages.com/mydixiedarlin%27
--
Neil Nicholson. 1981 Air Cooled Westfalia - "Jaco"
http://web.mac.com/tubaneil
http://tubaneil.googlepages.com/
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