Mike, You can have hardened seats inserted in the head, but probably won't cure
a cracked head. John
Mike Lishego wrote:
> >Well, it had been eleven years since I had a valve job and I drive the car
> >everyday day, so I pulled the head and took it down to the machine shop the
> >next morning. I got a call from them a couple of hours later asking "if I
> had
> >just bought the head from someone" because it wasn't all there.
> >
> >I went to the shop and looked at the head. An exhaust valve seat that was
> >installed in 1987 was gone. We finally figured out that the seat came loose
> >and fell out and was dashed to bits by the piston. This was confirmed by an
> >interesting patina on the top of the #3 piston. I'm sure what ever was left
> is
> >still in my muffler. For your information, exhaust valve seats for a
> General
> >Motors 260 V-6 were used to replace the missing one and do the other three
> >(regression had taken it's toll). Saved about $1 each and they were readily
> >available in Dallas.
>
> Wait a second! You can replace the valve seats in an MGB head??? If so, my
> machine shop gave me some wrong information...I gave them a 'B head for
> magnafluxing three years ago, and they told me it was kaput because the
> valve seats were cracked! Can anyone tell me if this is true (it must be,
> he's got a good head!) If this is possible, I might have a good head lying
> around...
>
> Michael S. Lishego
> http://www.geocities.com/MotorCity/Speedway/3706/
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