At 11:27 AM 9/9/97 -0500, A. B. Bonds wrote:
>About two years ago I though I'd do my '52 TD a big favor and have the
>head rebuilt. Among other things, compression was spotty and there
>was a lot of oil going down the valve guides. Among other candy, I
>laid in some hardened seats and Moss' finest silicon bronze guides....
>
>It worked a treat for a while, but after last winter's layover the
>engine has become balky. Rough idle and really crappy acceleration.
>It can hit about 4500 rpm without load (briefly...) but can barely
>make it down the driveway and back when moving. I naturally have
>checked the SUs and ignition assiduously, replaced coil, points,
>rotor, double-checked plug gaps, point gap and timing. Proximate,
>but no panatela.
>
>So then I read with deepening anxiety about the problem with sticky
>silicon bronze valve guides. What are the symptoms, exactly? Is it
>possible to determine that this is the cause of my misfortune without
>yanking the head? I'd really feel silly to go to that trouble for no
>reason. And if this is the problem, what is the preferred remedy?
>Honing or reaming or?
>
> A. B. "But I really meant well" Bonds
>
>
>My problem occured only with a warmed up engine and at high revs under
load. I have heard that the guides can oxidize over long non use, but
everything I hear is usually wrong when it comes to problems with the valve
train. Chip Olds set me right about a lot of this, but since I redid the
head and went back to the old guides, no more problems.
Mike
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