[Vwdiesel] compression test

[brian gochnauer]

Thanks all, for the info and ideas  :)

On 9/4/09, mikitka <mikitka at embarqmail.com> wrote:
>
> Yes it would have shown it if the valve was not closing all the way. A
> cylinder leak down test is more accurate to show cylinder health.
>
> Nick
>
> -----Original Message-----
> From: vwdiesel-bounces at vwfans.com [mailto:vwdiesel-bounces at vwfans.com] On
> Behalf Of brian gochnauer
> Sent: Thursday, September 03, 2009 9:48 PM
> To: vwdiesel at vwfans.com
> Subject: [Vwdiesel] compression test
>
> Looking for response with those who have actually done engine issues with a
> compression test.
> My son has a 5.7L (350cu.) Vortec GM gas engine that he did a compression
> test on, some one had said that they
> had similar symptoms (ruff running intermittently when completely warmed
> up)
> and after removing their cyl. heads found
> a they had found a bent valve on #4 cylinder (only slightly, I'd guess),
> they didn't say whether they had done a compression test or not.
>
> We have done a compression test all cylinders at 148 to 155 psi, I'm
> thinking the mechanical have to be GOOD.
> My question is;
> IF THERE IS a bent (bad) valve in THIS engine the compression test would
> have shown low compression, wouldn't it ?
>
> Thanks
> Brian
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