Compression testing is best with all plugs removed, throttle open, warm
engine and a good battery charger to maintain cranking speed. There are wet
and dry variations which have been supplanted by leak by testing, where each
cylinder while at TDC on compression stoke is pressurized with compressed
air. The tech then listens for Leaks at carbs, exhaust, crankcase, or
radiator for hissing or bubbles....
frogeye@porterscustom.com
Porter Customs 2909 Arno NE
Albuquerque, NM USA 87107
505-352-1378
1954 BN2 1959 AN5
Porter Custom Bicycles
cars:
www.britishcarforum.com/portercustoms.html
gallery:
http://picasaweb.google.com/porterscustombicycles/PorterCustomBicyclesStuff
GO HERE: http://porterbikes.com/ nice pictures-fun facts-my world
-----Original Message-----
From: healeys-bounces@autox.team.net [mailto:healeys-bounces@autox.team.net]
On Behalf Of Greg Mandas
Sent: Sunday, June 26, 2011 6:31 AM
To: Oudesluys
Cc: healeys@autox.team.net
Subject: Re: [Healeys] 100M Compression -- leakdown
Whenever I discuss compression with my mechanic, he says I really need to do
a
"leakdown". He says it's more informative.
Uh... What's a leakdown test?
Greg
65BJ8
Sent from my iPhone so please excuse typos and brevity.
On Jun 26, 2011, at 3:05 AM, Oudesluys <coudesluijs@chello.nl> wrote:
> Fully warmed up engine, petrol pump disconnected or blocked, plugs out,
> trottle(s) wide open, spinning the engine (appr. 5 seconds) untill you
> get max. reading on compression gauge.
> As simple as that.
> Kees Oudesluijs
> NL
>
> [demime 1.01d removed an attachment of type text/x-vcard which had a name
of
coudesluijs.vcf]
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