Leakdown problems after valve job (long)

[Jay Whitely]

--- NismoDriver at aol.com wrote:

 Did anyone lap the valves after this was
> done?

***I really don't think so.

Did they retest
> the head after the polishing?

***I don't think so. I believe they tested it after
the valve job, etc....and just did the polishing and
gave the head back to me.

If not, I think they
> have a moot point. If you
> have to pull the head, you may want to try to lap
> them yourself before going
> back to *that* machine shop.

***I was thinking of doing just that. I will probably
hand lap them myslef with a "pogo stick" and some
valve grinding compound.

> Also, is the GReddy gasket a composite or MLS? If
> its multilayered, you
> should be able to reuse it. Best of luck!

***It is a multi-layered gasket. The only thing is
that I used copper spray gasket on both sides on the
gasket. I may need to get another gasket in there :(

Do you think that the polishing wheel is strong enough
to affect the valve seats, causing them to leak?

Thanks a lot,

=====
Jay Whitely
Tampa, FL
1996 200SX SE-R
GTi-R powered, F-MAX Stage 2