Date:         Tue, 22 Jun 2004 04:32:43 -0400
Reply-To:     Eric Zeno <vw4x4@FYI.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Eric Zeno <vw4x4@FYI.NET>
Subject:      Re: compression test
Comments: To: Gerald Masar <azsun99@EARTHLINK.NET>
In-Reply-To:  <000601c4581a$17c818c0$ac28b83f@computer>
Content-Type: TEXT/PLAIN; charset=X-UNKNOWN

Most people would be happy with these resaults.

            Eric                   86-VW4x4
            vw4x4@fyi.net          86-SS Syncro
            Pittsburgh, PA USA     1936-Chrysler
                                   92-Jetta GWC
            www.fyi.net/~vw4x4/vw4x4.htm   

On Mon, 21 Jun 2004, Gerald Masar wrote:

> Vanagoners,
> This weekend, I did a compression check on my '90 Westy with 162K miles.
> Usual procedure, remove all plugs, ground HT lead from coil, block throttle open,
> remove FI relay and the item I am uncertain about, engine at operating temperature.
> Bentley, p. 15.20, says oil temp. min. 30ºC (86ºF). Here in this part of Arizona (not
> even PHX),
> the temperature is well above that before noon and hotter in the garage where the van
> was sitting.
> Anyway, here are the results at ambient temp.: #1=130, #2=120, #3=120, #4=130.
> Ran the test again the next day after a run up to Sedona and back, and waited for the
> engine to cool down a little so I could get the plugs out and not burn myself.
> Results: 125, 125, 125, 140 (in same order as above).
> I understand a compression test is inconclusive without a leak-down test, and I am not
> having any problems with the engine (other than normal for it's mileage), but would
> anyone care to comment on these results, and how hot should the engine be for the
> test?
> 
> Thanks,
> Jerry
>