They dont fit, the cap inside diameter checks 6.27mm or .247" which would be good for a 6mm or .236" valve stem.
Our valve stems are 6.60mm or .260".
I don't want to have to grind the valve stems under size.
He is checking to see if he has 6.5mm caps.
The cap will add .075" to the valve length.
Lyle
--- In
anzhonda600owners@yahoogroups.com
, "lyletrudell" wrote:
> Hi John, thanks for the information.
> They look like they are the right ID.
> The OD really doesn't matter much.
> Thickness could be ground to what we need.
> I will get the set of 16, I need 8 for my 2 engines.
> Not sure what cam I will be using yet.
> Lyle
> --- In
anzhonda600owners@yahoogroups.com
, "John" wrote:
> > Hi Lyle,
> > I used Batten Performance 6.5mm lash caps with my reground camshaft. There are some on eBay now.
> > John
> > > -----Original Message-----
> > > From:
anzhonda600owners@yahoogroups.com
> > > [mailto:
anzhonda600owners@yahoogroups.com
]On Behalf Of lyletrudell
> > > Sent: Monday, July 12, 2010 7:58 AM
> > > To:
anzhonda600owners@yahoogroups.com
> > > Subject: [anzhonda600owners] Re: Valve Lash Caps
> > > Hi Blake, I think Marshall was talking about the Steel rod available in
> > > the UK. "Silver steel" it's just a tool steel rod that is hardened and
> > > ground to an accurate size. We call them drill blanks or reamer blanks in
> > > the USA.
> > > Very common, I use them all the time for fixturing and tooling.
> > > So the caps like Bill talked about are the cheapest and easiest way to fix
> > > this?
> > > Our valve stem diameter checks 6.6mm or (.260") whatever that size is!
> > > How can we use a Ford 11/32"(.343")diameter cap?
> > > Plus the Ford cap has a (.050-.080") thick wall, we need about (.020")?
> > > Lyle
> > > --- In
anzhonda600owners@yahoogroups.com
, blake neilson
> > > wrote:
> > > > Plenty of auto engines have used them.� Some take the place of the
> > > retainer and some are used under the valve spring in the spring pocket.� I
> > > favor the latter as they are heavier than a simple retainer and so when used
> > > in place of a retainer add a lot of mass to the moving parts of the valve
> > > train.
> > > > Blake
> > > > --- In
anzhonda600owners@yahoogroups.com
, "lyletrudell"
> > > wrote:
> > > > > Hi Marshall, if I was going to design the lash caps I would use .312"
> > > dia tool steel .250" long. Then machine a .262" dia flat bottom hole about
> > > .225" deep. This would leave a .025" wall.
> > > > > Then harden to 55Rc and grind and polish the top surface.
> > > > > Then do what Bill said about checking clearance. Grind valve ends to
> > > get the clearance in the middle of the travel of the rocker arm eccentric.
> > > > > Lyle
> > > > > > > --- In
anzhonda600owners@yahoogroups.com
, wrote:
> > > > > > > > Lash caps work, I have used them on reground cam shafts with
> > > great success.
> > > > > > > > They put back the material removed allowing the rocker arm
> > > eccentric to
> > > > > > > > make the necessary adjustment. The first question is "How do you
> > > know what
> > > > > > > > size to use?" I put the valve train assembly together and
> > > measure with a
> > > > > > > > feeler gauge while each of the rocker arm shafts are in the open
> > > or High
> > > > > > > > side giving the most room between the cam and the rocker arm.
> > > Then measure
> > > > > > > > the thickness of the valve end of each rocker arm and grinding
> > > to make them
> > > > > > > > all even. This will give you a reference to base the size
> > > (thickness) of
> > > > > > > > the lash cap. Place over the valve stem, reassemble the valve
> > > train and
> > > > > > > > check for fit and adjustment.
> > > > > > > > Lash caps allow oil under and on top of the cap, which seemed to
> > > make the
> > > > > > > > valves much quieter.
> > > > > > > > Bill