Date: Thu, 11 Dec 2008 16:44:42 -0800
Reply-To: David Kao <dtkao0205@YAHOO.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: David Kao <dtkao0205@YAHOO.COM>
Subject: Re: What's considered good compression on a 2.1L?
In-Reply-To: <01b601c95be5$28847ea0$6701a8c0@PROSPERITY>
Content-Type: text/plain; charset=us-ascii
That's a good question, Scott.
All these schematics have a gray bar at the bottom with numbers
starting from 1, 2, 3... all the way to 100+. These numbers are
the location code in the schematic.
If you see a number of an open wire, say #20 anywhere in the
schematic, it means it has a connection to another wire located
in location 20. But before you go there just look at the bottom
at the gray bar and find the location of this open wire. Let's say
the location number is 68. So this really says at the location 68
there is a wire that is connected to another at the location of 20.
Now if you look for the location #20, likely on a different page
of the schematic, you will see an open wire that has a #68 on the
top of it.
Correct me if I am wrong. This how I read the schematics.
David
--- On Thu, 12/11/08, Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM> wrote:
> From: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
> Subject: Re: What's considered good compression on a 2.1L?
> To: vanagon@GERRY.VANAGON.COM
> Date: Thursday, December 11, 2008, 3:06 PM
> for regular gas engines, 100 psi has traditionally been
> considered
> borderline.
> With luck your engine will have something like 125, 120,
> 115, 130 .........
> I find many of them to have one low cylinder, often # 3.
> I wouldn't expect to see higher than 135 to 140 at the
> very most.
> a 90 wouldn't surprise me...........it's just a vw
> after all......
> and I find many waterboxer exhaust valves leaking.
> I almost always do a minor valve job at least with a head
> gasket job.
>
> there's one 'real trick' to figure out in the
> Bentley wiring diagrams.....
> is how to follow to the next wire when you see a wire
> ending in a box with a
> # in it.
> Other than that.....
> pretty straight forward.
> Scott
> www.turbovans.com
> ----- Original Message -----
> From: "Mark A Kippert"
> <vanagon@KIPPERT.COM>
> To: <vanagon@GERRY.VANAGON.COM>
> Sent: Thursday, December 11, 2008 1:54 PM
> Subject: What's considered good compression on a 2.1L?
>
>
> > I'm going to be working on my Vanagon this
> evening. I plan to replace
> > plugs and thought I'd check cylinder compression.
> The PO didn't know
> > the engines history and with over 200k miles I'd
> like to know it's
> > overall condition. What is factory compression and
> what is considered
> > acceptable? I don't have my Bentley to check it at
> the moment and
> > besides, I need to take a class on Bentley usage to
> fully understand
> > it's usage (and believe me I've spent hours
> just trying to trace a
> > wire in the wiring diagram).
> >
> > Thanks!
> > -Mark
> > '86 GL, 2.1L, 4spd
> >
> >
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