Craig,
I did check each cylinder, one at a time, with both valves closed. The list
I posted with leaks was where the most obvious air was escaping.
Mike http://pages.prodigy.net/mikeross
63 Mk1 Spitfire
66 Mk2 Spitfire
68 Mk3 Spitfire (donor body tub for GT6 convertible)
69 GT6+ (donor chassis for GT6 convertible)
70 GT6+
----- Original Message -----
From: "Craig Smith" <CraigS@iewc.com>
To: "'Mike Ross'" <mikeross@Prodigy.net>; <rtgetzinger@scif.com>
Cc: "spitfires@autox.team" <spitfires@autox.team.net>
Sent: Friday, June 15, 2001 11:08 PM
Subject: RE: Cylinder Compression
> The whole system is going to leak !
>
> Rings are not a full closed system
>
> Leaks from the tail pipe are from one of the valves that are open.
>
> The deal is,
>
> Where is MOST of it coming from ?
> Check one cylinder at a time with BOTH valves closed
>
>
> -----Original Message-----
> From: Mike Ross [mailto:mikeross@Prodigy.net]
> Sent: Friday, June 15, 2001 4:20 PM
> To: rtgetzinger@scif.com
> Cc: spitfires@autox.team
> Subject: Re: Cylinder Compression
>
>
> I used a small rubber hose to listen through and noted air escaping
> from the oil dipstick hole (with the dipstick out). This tells me I
> must have air leaking past the piston rings.
> When I hear air escaping from the tail pipe, I must have air leaking
> past the exhaust valves. Air escaping through the carburetor intake
> tells me I have air leaking past the intake valves.
>
> I'm no expert, but this made sense to me. I was hoping someone could
> validate my interpretation of the test results.
>
> Mike http://pages.prodigy.net/mikeross
> '63 Spitfire
> '66 Spitfire
> '68 Spitfire (donor body tub for GT6 convertible)
> '69 GT6+ (donor chassis for GT6 convertible)
> '70 GT6+
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