ENRIQUE CLAURE wrote:
>
> Hello MG fans, I am in the process of building my MGB77 head. I have had new
> seats and guides installed at the
> machine shop. A friend of mine has told me that it is recommended I have the
> valves seated by the machine shop onto the new seats. He tells me they use a
> sort of sucker with a handle and carefully rotate the valves on the seats? I
> have found nothing of this sort in the Haynes manual. Any ideas or comments?
> Thanks Enrique
This techique is called "lapping" the valves. Many machine shops do not
do this anymore. It does take some time to lap them in but is worth it
to insure that the valves are seating correctly which of course improves
compression and durability.
Regards,
Hal Rogers
H.D. Rogers & Sons
Import Auto Specialists
3418 Barksdale Blvd.
Bossier City LA 71112 USA
(318) 742-3651 phone (318) 742-5044 fax
http://www.hdrogers.com
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