[SEL] Reaming valve stem tower

[Richard Strobel]

Ok John gotcha...makes sense to me. Now the reamers I've seen have a square 
drive end much like a tap, with countersunk indexing hole.  I could orient 
the valve guide to the drill press, put a handle on the reamer, Install a 
pointed gizmo thing in the drill chuck and bring the pointed gizmo down into 
the indexing hole on the reamer.  This will orient the reamer straight up 
and down and keep it from cocking.

  This is where a third hand would be handy, eh?

  Do I use cutting oil with a reamer doing cast?  Been told not to use 
cutting oil when threading cast with taps/dies?

Thanks pard
Rick







----- Original Message ----- 
From: "John Hammink" <jg.hammink at quicknet.nl>
To: "The SEL email discussion list" <sel at lists.stationary-engine.com>
Sent: Tuesday, November 22, 2005 7:47 AM
Subject: Re: [SEL] Reaming valve stem tower


> Hi Rick,
>   I wouldn't do it by hand, when it a little sticks you get
> an egg shape before you know it cause your strong arms.
> Span it on the drillpress table and use the spindle as a guide
> and turn it by hand.
>
> Take care,
> John Hammink
> Anna Paulowna, Netherlands.
> jg.hammink at quicknet.nl
> www.oldengine.org/members/hammink/web
>
>
>
> > Howdy all;
> >   I'd like to ream my exhaust valve stem tower a little larger in dia. 
> > to
> > clean it up.  Question I've had for a long time...if I use a fixed dia.
> > reamer, and use a tap handle on it, do I need a pilot guide?..IOW, can I 
> > do
> > it by hand?
> >
> >   I know on some dad had, there was a pilot when it first starts out.
> >
> >   I'll leave it at that before I confuse myself :-)
> >
> >
> >   Max Morgan in Boise, Id., will build me new valves for 35 rockets
> > each...not too bad IMO.
> >
> >   TIA
> > RickinMt.
> >
> >
> >
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> >
>
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