lurch wrote:
> Took my stripped-bare STD shovel heads to the local dealer for a valve
> job today...and was told "Since they've been ported [they ain't--just
> polished] we won't work on 'em because it makes the metal too thin
> around the guides and we're afraid we'll crack it pressing the guides
> out. We've had that happen before."
>
> Unbelievable. The gene pool really is polluted.
>
> Or is it that I ride a Paughco/Delkron/STD/S&S 'shovel' and do all my
> own wrenching except for valve jobs, barrel boring and crank balancing
> and they can't pad the labor bill?
>
> Fuck 'em. I'm looking at some valve-seat grinders now. Anyone ever
> used the Neway seat cutters with any success?
>
> Lurch
Sorry to hear it, but I'd be leery as well. I'd probably give STD a call
first
and make sure I get a recommended procedure, that way maybe they'd
suck it up if I had cracked your head.
Regardless, I use Neway exclusively. I've tried the grinders, but had too
many
of them explode, and break pilots, so I gave that up.
Now I spend no more than 15 minutes in a hole, cut my 3 angles, and use
a valve concentricity gauge to get it within .001". I also have a set of
'lapping valves' and only lap the seat, leaving the valve face clean.
Takes a while for them to pay for themselves.
Otherwise, I can recommend a high quality affordable mail order machine
shop.
HogDr
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