Date:         Thu, 2 Jun 2011 21:46:57 -0700
Reply-To:     BenT Syncro <syncro@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         BenT Syncro <syncro@GMAIL.COM>
Subject:      Re: aftermarket tach
In-Reply-To:  <052901cc219e$ad56ad70$6401a8c0@PROSPERITY>
Content-Type: text/plain; charset=us-ascii

Thanks, David & Scott. I will have a looksee if my 85 donor has said green wire. Worse case, I need to just extend the wire from the 84 with a tach to the back.

Didn't mean to lead (no pun intended) the thread away from the subject title.


BenT
sent from my electronic leash

On Jun 2, 2011, at 8:30 PM, Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM> wrote:

> That's the right way to do it ..
> get an vanagon instrument cluster with a tach ..
> and that gets you the digital clock too.
> 
> just one warning ...there are a few variations in the wire positions on T14
> , the connector at the instrument cluster.  It's something like 80 to 82 is
> one arrangement, 83 and 84 are together ..
> 85 is by itself, and 86 and up are all the same ..
> *close to that* ...........
> fortunately ...that connector opens up so you can change wire positions
> easily.
> So you can fit say, an 88 instrument cluster properly into your 85 van.
> It's not hard to see in the Bentley wiring diagrams.
> 
> David B....
> re your words below ..
> I've only put a tach in one 85 that did not have a tach to start with ..
> I don't know if they are all this way ..
> but the green wire was in the front ..
> and it was not in the electrical junction box. ( firewall box )
> Anther vanagon guy I know says that non-tach 85's are like that ..
> so .......the needed green wire may not be there in the black junction box.
> It sure wasn't on the one I did.
> 
> Tach is a great addition. I drive by it constantly.
> 
> On ! ..to the original .poster .................
> something you want to be aware of.
> 
> 84's ( which can have a tach ) and 85's,  have one oil pressure switch,
> 86's and later have two oil pressure switches on the engine.
> IF you get an 86 or later instrument cluster...
> you need to trick the Dynamic Oil Pressure System ..which in the instrument
> cluster, so it will be happy without an OP switch for it to see. You just
> need to ground the wire for that switch that you don't have.
> 
> Scott
> www.turbovans.com
> 
> Scott
> www.turbovans.com
> 
> 
> ----- Original Message -----
> From: "Jonathan Edwards" <edwards151@GMAIL.COM>
> To: <vanagon@GERRY.VANAGON.COM>
> Sent: Thursday, June 02, 2011 7:32 PM
> Subject: Re: aftermarket tach
> 
> 
>> Wow - thanks for all of the great advice and ideas! I have to say,
>> resources
>> like this list make the adventure of owning (and working on) one of these

>> unique vehicles so much less intimidating - and fun!
>> 
>> So I think I'll return the tach I purchased and look for a cluster with a

>> tach out of a salvage van, etc. Soooo... does anyone here have or have a
>> lead on an instrument cluster I can purchase? I already checked thesamba
>> ads
>> and ebay - none. And a quick search on car-part.com didn't come up with
>> much.
>> 
>> Thanks again everyone!
>> 
>> Jon
>> 
>> On Thu, Jun 2, 2011 at 6:02 PM, David Beierl <dbeierl@attglobal.net>
>> wrote:
>> 
>>> At 06:45 PM 6/2/2011, BenT Syncro wrote:
>>> 
>>>> tach. Now I'm getting concerned that the tach wiring might be
>>>> missing on the Weekender... one more thing to worry about.
>>>> 
>>> 
>>> Well, the diagram shows it going green from the coil to T7a/5 in the
>>> box on the firewall; then to T4b which Bentley says is in that same
>>> box but means is under the dash; thence to pin 9 of the panel
>>> connector.  So the breakpoints are under the dash (connector should
>>> have red/black, green, blue/black, violet/black on it) and in the
>>> firewall
>>> box.
>>> 
>>> Yrs,
>>> d
>>>