Date: Sun, 25 Mar 2001 22:44:46 +0100
From: "SimonJ" <menopsam.com>
Subject: Re: Another Blown Head Gasket Story


"Bob" <uctraingnopsamanet.com> wrote in message news:aeopbt8rec6odlgcern0p5k8gv8imnrlcbnopsamcom... > On Sat, 24 Mar 2001 14:50:51 +0000, Johannes H Andersen > <johsnopsamsafish.com> wrote: > > >Or do you mean that the valves need > >attention around 100K miles anyway? > > > Valves wear, like everything else inside your engine. After > 100k miles, they can't be like new. Since there is a substantial > amount of labor involved in replacing a head gasket, I'd do the > valves too. Likewise, the seals still work, but if you've gone > to all the trouble of pulling the head, why not renew them ? > The amount of additional labor to spin the valves and/or change > the seals is minimal. Might as well do it while the head is > off. > > As always, IMHO, > Bob Bear in mind that when you grind the valves, it will cause the stem to protrude further toward the tappet, so the stem will need lapping, if you have to lap too much off to bring it back to the correct height, then the valve will need replacing, so you may end up replacing a perfectly good valve Like someone else in this thread says, if it aint broke, dont fix it!

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