Date: Thu, 17 Sep 2009 00:34:09 -0400
Reply-To: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Subject: Re: 1.9ltr Vanagon timing help needed.
In-Reply-To: <4AAE86E3.3070507@comcast.net>
Content-Type: text/plain; charset="us-ascii"
Ken,
The stock ignition timing is there for number reasons mostly related to
emissions. Yes the proper timing lacks some part throttle response but at
full throttle there is little difference. Full throttle for long periods at
those over advanced settings can result in detonation and piston melting.
Remember that with the water boxer pinging occurs long before you'll hear it
in the front seat.
Dennis
-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Ken Wilford
Sent: Monday, September 14, 2009 2:10 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: 1.9ltr vanagon timing help needed.
On the 1.9l engines they wanted you to set the timing to 5 degrees after
TDC for some reason. However I have found that these engine lack power
at that setting. So you want to set them to between 5 and 7 Before TDC
like the 2.1l Vanagons. On those engines the V mark is to the right of
the U mark exactly 1/4 of an inch. Just measure from the center of the
U 1/4 of an inch to the right and make your new V mark with some paint
and you should be good to go.
Let me know if you need anything,
Ken Wilford
John 3:16
www.vanagain.com
T Collins wrote:
> Hello Ken,
>
> Thanks for the reply. I have some questions for you. I looked at your
> Dec 26, 2007 newsletter and also at your reply now and like to be
> clear about something.
>
> You say that the V notch is the timing mark and that the U mark is the
> TDC. My pulley has the V notch to the left of the U mark.....so like this;
> V----->U (one on the front the other on the rear of the pulley)
>
> So If I am getting this right, U is TDC, then would V be 5* BTDC? So
> for proper timing the V notch should be 2* more to the right side of
> the engine halves? That would equal = 7* BTDC
>
> I just want to make sure that I am wrapping my brain around this
> correctly.
>
> Lastly then, the U TDC mark is there for valve ajustments.
>
> I just need to return the timing to specs, since I fiddled with it so
> much. The van iddles pretty much fine both cold and hot in the present
> seetings, but sucks while under load as soon as geeting it out of 1st
> gear. I ahve check the grounds and they all looked good and intact.
> I'll check them again.
>
> My 85 has the under the TB possition switch, not checked yet.
> I will try and buy a new temp II sender and install it.
> I have 3 afm that I have switch with the problems being the same.
> I have tryed 2 differnt O2 sensors
> I haveto pick up a set of new wires locally.
>
> Thanks again,
> Tony
>
>
> On Mon, Sep 14, 2009 at 12:31 PM, Ken Wilford <kenwilfy@comcast.net
> <mailto:kenwilfy@comcast.net>> wrote:
>
> Tony, the timing was not the culprit. Your timing can't change
> unless you change it by moving the distributor so you can't go
> from a good running van to a bad one and the timing be the
> culprit. It would not change on it's own. So now you have two
> problems, the original one and the fact that your timing is not
> not set properly. The two marks you have on your pulleys are V
> notch (timing mark) and U notch (TDC). I would set your timing to
> about 7 deg BTDC (advanced). It should run well there. You can
> do this the easiest with a timing light that has a little dial on
> the back that allows you to set it to the timing you desire then
> aim it at the U mark and turn the distributor until the U mark
> lines up with the case halves. If you don't have one of those
> measure the distance between the V mark and the U mark with a tape
> measure. Now make another mark the same distance as these two
> marks are apart but on the other side of the U. That should be 5
> degrees advanced which would be fine. Now time it to that using
> the static light with the idle stablizer by passed and it should
> run as good as it is going to run. Now you have to troubleshoot
> the stumbling problem which is probably something completely
> different. Check out my article on bucking and hesistating and if
> it helps you out.
> http://www.vanagain.com/bucking1.htm
>
> Let me know if I can help you further.
>
> Ken Wilford
> John 3:16
> www.vanagain.com <http://www.vanagain.com/>
>
>
> --
> 82 Scirocco "Rodolfo"
> 85 Vanagon "El Guapo"
> 90 Fuji Ace
>
| 
