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Re: [Fot] TR4 Valve spring - pressure, assembled height, suppliers

To: "TeriAnn J. Wakeman" <tjwakeman@gmail.com>, <fot@autox.team.net>, "Tony Drews" <tony@tonydrews.com>
Subject: Re: [Fot] TR4 Valve spring - pressure, assembled height, suppliers
From: "Greg Solow" <gregmogdoc@surfnetusa.com>
Date: Sat, 12 May 2012 12:35:56 -0700
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Reply-to: Greg Solow <gregmogdoc@surfnetusa.com>
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Tony & TeriAnn,
You may be right about the crack. But on a race engine especially, I like to have the center part of the crack pinned to., in theory at least, lock the front and rear parts of the lower surface of the head together and help prevent any relative movement between them. At least it makes me feel better to do this. If I were starting to prepare a head from scratch, I would look for one with no cracks anywhere. The crack in the center of the bottom is invariably from severe overheating at sometime in the past. There is no telling exactly what other invisible damage there may be that could cause problems in the future. For a street engine this crack, if that is all the damage there is, should not cause any issues. Greg _______________________________________________
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