Those numbers seem low to me, though the evenness is commendable.

Did you hold the throttle open as you spun the motor?  If there is no air
getting into the cylinders the pressure will be low.

Jake

On 4/30/07, Burdett, Jean-Pierre <jp.burdett@spotwave.com> wrote:
>
> Hi Guys,
>
> I just did a compression check this weekend and it seems almost too good
> to to be true - 110 lbs in the 2  forward  barrels and 115 in the rear
> 2.
>
> The engine has not been torn down recently -  I think it has about max
> 50,000 kms  (30,000miles) on professionally rebuilt engine done in 1996
> including new cylinder heads.   (  I can't tell exactly how much
> mileage... from my records the odometer was broken for 3 years)
>
> 1.      got engine up to operating temp
> 2.      removed all plugs
> 3.      put in the compression tester
> 4.      let the engine turn over about 4-6 times
> 5.      repeated on all cylinders
>
> All 4 of my month old plugs have consistently grey white tips but the
> ceramic around is black.
>
> So my question is....did   I  skip a step that skewed the results or do
> I just have a strong engine? What do you guys think and how often should
> I do compression checks to verify the state of the engine?
>
> Thanks
>
> JP Burdett | Product Marketing Manager
> Spotwave Wireless Inc.
>
> Tel: 613.591.1662 Ext.297 | Fax: 613.591.8107  | Mobile: 613.294.8942
> 1 Hines Road. Suite 204 Ottawa ON. CANADA | K2K 3C7
> jp.burdett@spotwave.com <mailto:jp.burdett@spotwave.com>   |
> www.spotwave.com <http://www.spotwave.com/>
>
>

--
Jake
1984 Vanagon GL
1986 Westy Weekender "Dixie"
www.crescentbeachguitar.com