Mike's right.... 6% is nothing on a cold engine. I'm surprised you canhear any
air leakage at all..... 'Course I'm half deaf. I'm surethat 6% was there
before the rocker arm problem. I do apost-race check-list on my car after
every El Mirage (and sometimesbetween runs at B'Ville) which includes a
leakdown. That way I canmonitor any changes and have a record. I use 75 lbs.
of air(100 psi will turn the engine over sometimes) and then calculate the%. I
always note on my checklist what the engine temp is ( hot,warm, cold) It
varies quite a bit from very hot to stonecold..... Wish ALL of my cylinders
were 6% !! See you on the salt.
Ed
-----Original Message-----
From: Flowbench@aol.com [mailto:Flowbench@aol.com]
Sent: Thursday, July 27, 2006 04:05 PM
To: mike.meierle@alcatel.com, land-speed@autox.team.net
Subject: Re: Leakdown question
In a message dated 7/27/2006 10:46:40 AM Pacific Standard Time,
mike.meierle@alcatel.com writes:
> It was a cold engine....From what I can tell It's crankcase noise, telling
> me it's ring leakage.
Everything sounds OK to me. theres no reason for the rings to be leaking
after the failure you had unless you smashed a ring land with a valve. I think
you
would have leakage out the valve too if that was the case. Enjoy Bonneville.
Mike
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